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  • Site Security/Access management for asp.net mvc application

    - by minal
    I am trying to find a good pattern to use for user access validation. Basically on a webforms application I had a framework which used user roles to define access, ie, users were assigned into roles, and "pages" were granted access to a page. I had a table in the database with all the pages listed in it. Pages could have child pages that got their access inherited from the parent. When defining access, I assigned the roles access to the pages. Users in the role then had access to the pages. It is fairly simple to manage as well. The way I implemented this was on a base class that every page inherited. On pageload/init I would check the page url and validate access and act appropriately. However I am now working on a MVC application and need to implement something similar, however I can't find a good way to make my previous solution work. Purely because I don't have static pages as url paths. Also I am not sure how best to approach this as I now have controllers rather then aspx pages. I have looked at the MVCSitemapprovider, but that does not work off a database, it needs a sitemap file. I need control of changing user persmissions on the fly. Any thoughts/suggestions/pointers would be greatly appreciated.

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  • Need a refresher course on property access...

    - by Code Sherpa
    Hi. I need help with accessing class properties within a given class. For example, take the below class: public partial class Account { private Profile _profile; private Email _email; private HostInfo _hostInfo; public Profile Profile { get { return _profile; } set { _profile = value; } } public Email Email { get { return _email; } set { _email = value; } } public HostInfo HostInfo { get { return _hostInfo; } set { _hostInfo = value; } } In the class "Account" exists a bunch of class properties such as Email or Profile. Now, when I want to access those properties at run-time, I do something like this (for Email): _accountRepository = ObjectFactory.GetInstance<IAccountRepository>(); string username = Cryptography.Decrypt(_webContext.UserNameToVerify, "verify"); Account account = _accountRepository.GetAccountByUserName(username); if(account != null) { account.Email.IsConfirmed = true; But, I get "Object reference not set..." for account.Email... Why is that? How do I access Account such that account.Email, account.Profile, and so on returns the correct data for a given AccountId or UserName. Here is a method that returns Account: public Account GetAccountByUserName(string userName) { Account account = null; using (MyDataContext dc = _conn.GetContext()) { try { account = (from a in dc.Accounts where a.UserName == userName select a).FirstOrDefault(); } catch { //oops } } return account; } The above works but when I try: account = (from a in dc.Accounts join em in dc.Emails on a.AccountId equals em.AccountId join p in dc.Profiles on em.AccountId equals p.AccountId where a.UserName == userName select a).FirstOrDefault(); I am still getting object reference exceptions for my Email and Profile properties. Is this simply a SQL problem or is there something else I need to be doing to be able to fully access all the properties within my Account class? Thanks!

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  • Apache2 Permission denied: access to / denied

    - by futureled
    Hi, after installing and starting apache2 i can't open the website and got the error "Forbidden You don't have permission to access / on this server." I tried some different options in the httpd.conf, but nothing helped me solving this problem. All permissions for every directory are "drwxr-xr-x". The directory /www contains a file names index.html with the same permissions. Please do not wonder, the time in the errorlog is not correctly. I have no idea what the problem is, i hope someone can help me. my httpd.conf: ServerRoot "/etc/apache2" Listen 80 User daemon Group daemon ServerAdmin [email protected] DocumentRoot "/var/www" Options FollowSymLinks AllowOverride None Order Deny,Allow Deny from all Options Indexes FollowSymLinks AllowOverride All Order allow,deny Allow from all DirectoryIndex index.html Order allow,deny Deny from all Satisfy All ErrorLog /var/apache2/logs/error_log LogLevel warn LogFormat "%h %l %u %t \"%r\" %s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %s %b" common <IfModule logio_module> LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio </IfModule> CustomLog /var/apache2/logs/access_log common ScriptAlias /cgi-bin/ "/usr/share/apache2/cgi-bin/" AllowOverride None Options None Order allow,deny Allow from all DefaultType text/plain TypesConfig /etc/apache2/mime.types AddType application/x-compress .Z AddType application/x-gzip .gz .tgz SSLRandomSeed startup builtin SSLRandomSeed connect builtin my error_log: [Sat Jan 01 00:50:26 2000] [notice] caught SIGTERM, shutting down [Sat Jan 01 00:50:33 2000] [warn] Init: Session Cache is not configured [hint: SSLSessionCache] [Sat Jan 01 00:50:34 2000] [notice] Apache/2.2.3 (Unix) mod_ssl/2.2.3 OpenSSL/0.9.8j configured -- resuming normal operations [Sat Jan 01 00:50:36 2000] [error] [client 192.168.1.44] (13)Permission denied: access to / denied [Sat Jan 01 00:50:37 2000] [error] [client 192.168.1.44] (13)Permission denied: access to / denied [Sat Jan 01 00:50:37 2000] [error] [client 192.168.1.44] (13)Permission denied: access to / denied [Sat Jan 01 00:50:37 2000] [error] [client 192.168.1.44] (13)Permission denied: access to / denied [Sat Jan 01 00:50:38 2000] [error] [client 192.168.1.44] (13)Permission denied: access to / denied [Sat Jan 01 00:50:38 2000] [error] [client 192.168.1.44] (13)Permission denied: access to / denied

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  • Newbie: get access privilege

    - by Mellon
    I am newbie on Linux Ubuntu machine. I logged in to the Ubuntu with username: student. There are some directories only allowed root user to access, for example /var/lib/mysql ,(I know I can use sudo to access but it is not what I want). If I want to get the access privilege on those directories with student account, is it so that I can run the following command : chown student: PATH_TO_ROOT_USER_PRIVILEGED_DIR and after that, I can access that directory by using my own account ? am I right? If I am right, then will root user lose the access privilege because I changed it to student user? If I am wrong, please tell me the right solution. P.S. please don't concern on what I am going to do on /var/lib/mysql directory, that is only my example, as I mentioned above, I mean generally *for those directories which only have root privilege*, can I use chown to change access privilege and will root user then loose the access because of the change made by chown ? I just wanna know the effect of chown.

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  • Security in shared hosting vs VPS 'virtual appliances'

    - by Pedro Loureiro
    I have to change my hosting provider. Right now I have a shared hosting account but I'm considering trying the LAMP stack appliance from turnkeylinux.org. I'm very comfortable with using linux, I've been using it for a long time. I have no problem ssh'ing into remote machines and do whatever I have to do (coding, reading logs, moving files, deploying, etc). The problem is that none of those tasks have involved securing the server/firewall. My experience has been as a desktop user or developer deploying apps/files in remote servers. Ignoring the security in the application logic (read: any scripts, frameworks, websites I might have created or installed) - I'm worried about things like base configuration of deamons, firewall, ports, executable scripts being readable from the outside and whatnot. My question is: how do you compare the (expected) out of the box security of the LAMP stack from turnkey and the (expected) security of a "regular" shared hosting provider? I was hoping to find some guides with a list of steps to do to protect my server but the only documentation I found was simply referring to ubuntu's documentation.

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  • Win 2008 R2 terminal server and redirected printer queue security

    - by Ian
    I have a case where I need a non-priv account to be able to make a modification to the redirected printer. I know, its not advisable but we're not giving them access - changes will be made in code. So, following the docs (http://technet.microsoft.com/en-us/library/ee524015(WS.10).aspx) I modified the default security for new printer queues. This doesnt work though as windows doesn't seem to assign the privs you configure in the printer admin tool to redirected printer queues. As I test I added a non-priv test user to the default security tab in the printer admin tool (control panel - admin tools - printer admin. I assigned it all privs (its a test) and logged the user into the terminal server. The redirected printers duely appeared as usual. However if I open the printer properties - security tab, the user appears in the list of accounts/groups but the options I selected (all privs) are not set. Instead the user special privs box is marked and when I click on 'advanced options' and view them, there is nothing marked. So, something is clearing these options.... the question is, why and how can I convince it not to? Ian

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  • Access Denied on Some Subfolders/Files Within a Share

    - by Tim
    First thing this morning, I find that users on one of our share drives are all getting "access denied". I tried the same drive and also received "access denied" as a Domain Admin. Previous to this, all specified users and admins could get access. I checked share permissions I checked NTFS permissions I temporarily made both types of permissions read/write to "Everyone" -- This worked for one user It turns out that this is occurring for only some files/folders. When I try to manually alter the share of that single share, it can't be shared, access denied. xcacls also gets access denied rebooted the server (not a big deal - this is a smallish company). Does anybody have any insight, my google-fu is coming up blank. Thanks. EDIT: More info, I just ran AccessEnum. There were a lot of "access denied", but I noticed the pattern that all of the access denied had a parent with an owner of "???". When I look at the properties, the "Unable to display owner" message is in the box and I can only make my user account the owner. I can then share the individual file/folder, but it doesn't seem to propogate down to subfolders/files.

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  • Exchange Full Access issue

    - by Benjamin Jones
    I was just hired as a System Admin for a small company. They use Exchange 2010 for their Mail Server. I've never had a permission issue like this with Exchange because I worked for a larger firm with less responsibility before. Their old system admin is LONG GONE, so I can't ask him what he did. The issue: Right now ANYONE can gain access to a mailbox and view the mail in the mailbox. This is disabled by default you say and you have to grant them full access ? You are right, but the old System Admin I guess didn't know what he was doing. SO right now user A can open up user B mailbox with out being granted permission. So here is what I found out. Every user in EMC Full Access Permission has Exchange Server group granted. Within the Exchange Server Group, Domain User's is a Member Of. Within Domain User's all user's are listed as Members. So my guess is because of this all users can access ANY mailbox? Well GOOD News. The company is small (35 people) and they are not computer savvy, so hopefully no one has figured out they can open anyone's mailbox.(From what I can tell no). Next thing I did was with my domain user in EMC, delete Exchange Servers Group in FUll Access Permissions and grant access to my user. I made sure that my memeber was apart of the Exchange Server Group. Went to our OWA site and now I don't have permission to my own mailbox. Re did everything to the way it was with my user and now I'm stuck. Any help? I would think granting a single user that is in the Exchange Server group, Full Access to that mailbox would enable them to open that mailbox???? I guess I am wrong.

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  • (Some) security perms in WinXP corrupted (shows GUID instead of username)

    - by Andy
    I've been using my Win XP machine (part of a domain) over the holiday period, so until yesterday it hadn't rebooted for about five days. I used it yesterday perfectly fine and shut it down. When I switched it on this morning the majority (but not all) of my shortcut links in the Quick Launch toolbar showed as generic file icons. If you open the folder and get properties on one of the failing shortcuts it says ''Target type: This is not a valid shortcut''. Then in Outlook I noticed my signature wasn't showing (I checked my sent folder and the sig was ok yesterday). Checking the signature folder, I can't see the security tab on any of the sig files, and I have an access denied message on trying to open them. I can see the security tab on the signature folder itself, just none of the contents. If I try and use the parent folder's security tab and ''Replace permission entries on all child objects with entries shown here that apply to child objects'' it appears to work fine, but makes no actual difference. I logged in as administrator and saw that the owner of the files showed up as a GUID (clearly should've been my account in its place). Any ideas what might have made that happen? So far I haven't heard any similar complaints from anyone else at the office...

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  • .NET HTML Sanitation for rich HTML Input

    - by Rick Strahl
    Recently I was working on updating a legacy application to MVC 4 that included free form text input. When I set up the new site my initial approach was to not allow any rich HTML input, only simple text formatting that would respect a few simple HTML commands for bold, lists etc. and automatically handles line break processing for new lines and paragraphs. This is typical for what I do with most multi-line text input in my apps and it works very well with very little development effort involved. Then the client sprung another note: Oh by the way we have a bunch of customers (real estate agents) who need to post complete HTML documents. Oh uh! There goes the simple theory. After some discussion and pleading on my part (<snicker>) to try and avoid this type of raw HTML input because of potential XSS issues, the client decided to go ahead and allow raw HTML input anyway. There has been lots of discussions on this subject on StackOverFlow (and here and here) but to after reading through some of the solutions I didn't really find anything that would work even closely for what I needed. Specifically we need to be able to allow just about any HTML markup, with the exception of script code. Remote CSS and Images need to be loaded, links need to work and so. While the 'legit' HTML posted by these agents is basic in nature it does span most of the full gamut of HTML (4). Most of the solutions XSS prevention/sanitizer solutions I found were way to aggressive and rendered the posted output unusable mostly because they tend to strip any externally loaded content. In short I needed a custom solution. I thought the best solution to this would be to use an HTML parser - in this case the Html Agility Pack - and then to run through all the HTML markup provided and remove any of the blacklisted tags and a number of attributes that are prone to JavaScript injection. There's much discussion on whether to use blacklists vs. whitelists in the discussions mentioned above, but I found that whitelists can make sense in simple scenarios where you might allow manual HTML input, but when you need to allow a larger array of HTML functionality a blacklist is probably easier to manage as the vast majority of elements and attributes could be allowed. Also white listing gets a bit more complex with HTML5 and the new proliferation of new HTML tags and most new tags generally don't affect XSS issues directly. Pure whitelisting based on elements and attributes also doesn't capture many edge cases (see some of the XSS cheat sheets listed below) so even with a white list, custom logic is still required to handle many of those edge cases. The Microsoft Web Protection Library (AntiXSS) My first thought was to check out the Microsoft AntiXSS library. Microsoft has an HTML Encoding and Sanitation library in the Microsoft Web Protection Library (formerly AntiXSS Library) on CodePlex, which provides stricter functions for whitelist encoding and sanitation. Initially I thought the Sanitation class and its static members would do the trick for me,but I found that this library is way too restrictive for my needs. Specifically the Sanitation class strips out images and links which rendered the full HTML from our real estate clients completely useless. I didn't spend much time with it, but apparently I'm not alone if feeling this library is not really useful without some way to configure operation. To give you an example of what didn't work for me with the library here's a small and simple HTML fragment that includes script, img and anchor tags. I would expect the script to be stripped and everything else to be left intact. Here's the original HTML:var value = "<b>Here</b> <script>alert('hello')</script> we go. Visit the " + "<a href='http://west-wind.com'>West Wind</a> site. " + "<img src='http://west-wind.com/images/new.gif' /> " ; and the code to sanitize it with the AntiXSS Sanitize class:@Html.Raw(Microsoft.Security.Application.Sanitizer.GetSafeHtmlFragment(value)) This produced a not so useful sanitized string: Here we go. Visit the <a>West Wind</a> site. While it removed the <script> tag (good) it also removed the href from the link and the image tag altogether (bad). In some situations this might be useful, but for most tasks I doubt this is the desired behavior. While links can contain javascript: references and images can 'broadcast' information to a server, without configuration to tell the library what to restrict this becomes useless to me. I couldn't find any way to customize the white list, nor is there code available in this 'open source' library on CodePlex. Using Html Agility Pack for HTML Parsing The WPL library wasn't going to cut it. After doing a bit of research I decided the best approach for a custom solution would be to use an HTML parser and inspect the HTML fragment/document I'm trying to import. I've used the HTML Agility Pack before for a number of apps where I needed an HTML parser without requiring an instance of a full browser like the Internet Explorer Application object which is inadequate in Web apps. In case you haven't checked out the Html Agility Pack before, it's a powerful HTML parser library that you can use from your .NET code. It provides a simple, parsable HTML DOM model to full HTML documents or HTML fragments that let you walk through each of the elements in your document. If you've used the HTML or XML DOM in a browser before you'll feel right at home with the Agility Pack. Blacklist based HTML Parsing to strip XSS Code For my purposes of HTML sanitation, the process involved is to walk the HTML document one element at a time and then check each element and attribute against a blacklist. There's quite a bit of argument of what's better: A whitelist of allowed items or a blacklist of denied items. While whitelists tend to be more secure, they also require a lot more configuration. In the case of HTML5 a whitelist could be very extensive. For what I need, I only want to ensure that no JavaScript is executed, so a blacklist includes the obvious <script> tag plus any tag that allows loading of external content including <iframe>, <object>, <embed> and <link> etc. <form>  is also excluded to avoid posting content to a different location. I also disallow <head> and <meta> tags in particular for my case, since I'm only allowing posting of HTML fragments. There is also some internal logic to exclude some attributes or attributes that include references to JavaScript or CSS expressions. The default tag blacklist reflects my use case, but is customizable and can be added to. Here's my HtmlSanitizer implementation:using System.Collections.Generic; using System.IO; using System.Xml; using HtmlAgilityPack; namespace Westwind.Web.Utilities { public class HtmlSanitizer { public HashSet<string> BlackList = new HashSet<string>() { { "script" }, { "iframe" }, { "form" }, { "object" }, { "embed" }, { "link" }, { "head" }, { "meta" } }; /// <summary> /// Cleans up an HTML string and removes HTML tags in blacklist /// </summary> /// <param name="html"></param> /// <returns></returns> public static string SanitizeHtml(string html, params string[] blackList) { var sanitizer = new HtmlSanitizer(); if (blackList != null && blackList.Length > 0) { sanitizer.BlackList.Clear(); foreach (string item in blackList) sanitizer.BlackList.Add(item); } return sanitizer.Sanitize(html); } /// <summary> /// Cleans up an HTML string by removing elements /// on the blacklist and all elements that start /// with onXXX . /// </summary> /// <param name="html"></param> /// <returns></returns> public string Sanitize(string html) { var doc = new HtmlDocument(); doc.LoadHtml(html); SanitizeHtmlNode(doc.DocumentNode); //return doc.DocumentNode.WriteTo(); string output = null; // Use an XmlTextWriter to create self-closing tags using (StringWriter sw = new StringWriter()) { XmlWriter writer = new XmlTextWriter(sw); doc.DocumentNode.WriteTo(writer); output = sw.ToString(); // strip off XML doc header if (!string.IsNullOrEmpty(output)) { int at = output.IndexOf("?>"); output = output.Substring(at + 2); } writer.Close(); } doc = null; return output; } private void SanitizeHtmlNode(HtmlNode node) { if (node.NodeType == HtmlNodeType.Element) { // check for blacklist items and remove if (BlackList.Contains(node.Name)) { node.Remove(); return; } // remove CSS Expressions and embedded script links if (node.Name == "style") { if (string.IsNullOrEmpty(node.InnerText)) { if (node.InnerHtml.Contains("expression") || node.InnerHtml.Contains("javascript:")) node.ParentNode.RemoveChild(node); } } // remove script attributes if (node.HasAttributes) { for (int i = node.Attributes.Count - 1; i >= 0; i--) { HtmlAttribute currentAttribute = node.Attributes[i]; var attr = currentAttribute.Name.ToLower(); var val = currentAttribute.Value.ToLower(); span style="background: white; color: green">// remove event handlers if (attr.StartsWith("on")) node.Attributes.Remove(currentAttribute); // remove script links else if ( //(attr == "href" || attr== "src" || attr == "dynsrc" || attr == "lowsrc") && val != null && val.Contains("javascript:")) node.Attributes.Remove(currentAttribute); // Remove CSS Expressions else if (attr == "style" && val != null && val.Contains("expression") || val.Contains("javascript:") || val.Contains("vbscript:")) node.Attributes.Remove(currentAttribute); } } } // Look through child nodes recursively if (node.HasChildNodes) { for (int i = node.ChildNodes.Count - 1; i >= 0; i--) { SanitizeHtmlNode(node.ChildNodes[i]); } } } } } Please note: Use this as a starting point only for your own parsing and review the code for your specific use case! If your needs are less lenient than mine were you can you can make this much stricter by not allowing src and href attributes or CSS links if your HTML doesn't allow it. You can also check links for external URLs and disallow those - lots of options.  The code is simple enough to make it easy to extend to fit your use cases more specifically. It's also quite easy to make this code work using a WhiteList approach if you want to go that route. The code above is semi-generic for allowing full featured HTML fragments that only disallow script related content. The Sanitize method walks through each node of the document and then recursively drills into all of its children until the entire document has been traversed. Note that the code here uses an XmlTextWriter to write output - this is done to preserve XHTML style self-closing tags which are otherwise left as non-self-closing tags. The sanitizer code scans for blacklist elements and removes those elements not allowed. Note that the blacklist is configurable either in the instance class as a property or in the static method via the string parameter list. Additionally the code goes through each element's attributes and looks for a host of rules gleaned from some of the XSS cheat sheets listed at the end of the post. Clearly there are a lot more XSS vulnerabilities, but a lot of them apply to ancient browsers (IE6 and versions of Netscape) - many of these glaring holes (like CSS expressions - WTF IE?) have been removed in modern browsers. What a Pain To be honest this is NOT a piece of code that I wanted to write. I think building anything related to XSS is better left to people who have far more knowledge of the topic than I do. Unfortunately, I was unable to find a tool that worked even closely for me, or even provided a working base. For the project I was working on I had no choice and I'm sharing the code here merely as a base line to start with and potentially expand on for specific needs. It's sad that Microsoft Web Protection Library is currently such a train wreck - this is really something that should come from Microsoft as the systems vendor or possibly a third party that provides security tools. Luckily for my application we are dealing with a authenticated and validated users so the user base is fairly well known, and relatively small - this is not a wide open Internet application that's directly public facing. As I mentioned earlier in the post, if I had my way I would simply not allow this type of raw HTML input in the first place, and instead rely on a more controlled HTML input mechanism like MarkDown or even a good HTML Edit control that can provide some limits on what types of input are allowed. Alas in this case I was overridden and we had to go forward and allow *any* raw HTML posted. Sometimes I really feel sad that it's come this far - how many good applications and tools have been thwarted by fear of XSS (or worse) attacks? So many things that could be done *if* we had a more secure browser experience and didn't have to deal with every little script twerp trying to hack into Web pages and obscure browser bugs. So much time wasted building secure apps, so much time wasted by others trying to hack apps… We're a funny species - no other species manages to waste as much time, effort and resources as we humans do :-) Resources Code on GitHub Html Agility Pack XSS Cheat Sheet XSS Prevention Cheat Sheet Microsoft Web Protection Library (AntiXss) StackOverflow Links: http://stackoverflow.com/questions/341872/html-sanitizer-for-net http://blog.stackoverflow.com/2008/06/safe-html-and-xss/ http://code.google.com/p/subsonicforums/source/browse/trunk/SubSonic.Forums.Data/HtmlScrubber.cs?r=61© Rick Strahl, West Wind Technologies, 2005-2012Posted in Security  HTML  ASP.NET  JavaScript   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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  • Using Oracle Proxy Authentication with JPA (eclipselink-Style)

    - by olaf.heimburger
    Security is a very intriguing topic. You will find it everywhere and you need to implement it everywhere. Yes, you need. Unfortunately, one can easily forget it while implementing the last mile. The Last Mile In a multi-tier application it is a common practice to use connection pools between the business layer and the database layer. Connection pools are quite useful to speed database connection creation and to split the load. Another very common practice is to use a specific, often called technical, user to connect to the database. This user has authentication and authorization rules that apply to all application users. Imagine you've put every effort to define roles for different types of users that use your application. These roles are necessary to differentiate between normal users, premium users, and administrators (I bet you will find or already have more roles in your application). While these user roles are pretty well used within your application, once the flow of execution enters the database everything is gone. Each and every user just has one role and is the same database user. Issues? What Issues? As long as things go well, this is not a real issue. However, things do not go well all the time. Once your application becomes famous performance decreases in certain situations or, more importantly, current and upcoming regulations and laws require that your application must be able to apply different security measures on a per user role basis at every stage of your application. If you only have a bunch of users with the same name and role you are not able to find the application usage profile that causes the performance issue, or which user has accessed data that he/she is not allowed to. Another thread to your role concept is that databases tend to be used by different applications and tools. These tools can be developer tools like SQL*Plus, SQL Developer, etc. or end user applications like BI Publisher, Oracle Forms and so on. These tools have no idea of your applications role concept and access the database the way they think is appropriate. A big oversight for your perfect role model and a big nightmare for your Chief Security Officer. Speaking of the CSO, brings up another issue: Password management. Once your technical user account is compromised, every user is able to do things that he/she is not expected to do from the design of your application. Counter Measures In the Oracle world a common counter measure is to use Virtual Private Database (VPD). This restricts the values a database user can see to the allowed minimum. However, it doesn't help in regard of a connection pool user, because this one is still not the real user. Oracle Proxy Authentication Another feature of the Oracle database is Proxy Authentication. First introduced with version 9i it is a quite useful feature for nearly every situation. The main idea behind Proxy Authentication is, to create a crippled database user who has only connect rights. Even if this user is compromised the risks are well understood and fairly limited. This user can be used in every situation in which you need to connect to the database, no matter which tool or application (see above) you use.The proxy user is perfect for multi-tier connection pools. CREATE USER app_user IDENTIFIED BY abcd1234; GRANT CREATE SESSION TO app_user; But what if you need to access real data? Well, this is the primary use case, isn't it? Now is the time to bring the application's role concept into play. You define database roles that define the grants for your identified user groups. Once you have these groups you grant access through the proxy user with the application role to the specific user. CREATE ROLE app_role_a; GRANT app_role_a TO scott; ALTER USER scott GRANT CONNECT THROUGH app_user WITH ROLE app_role_a; Now, hr has permission to connect to the database through the proxy user. Through the role you can restrict the hr's rights the are needed for the application only. If hr connects to the database directly all assigned role and permissions apply. Testing the Setup To test the setup you can use SQL*Plus and connect to your database: $ sqlplus app_user[hr]/abcd1234 Java Persistence API The Java Persistence API (JPA) is a fairly easy means to build applications that retrieve data from the database and put it into Java objects. You use plain old Java objects (POJOs) and mixin some Java annotations that define how the attributes of the object are used for storing data from the database into the Java object. Here is a sample for objects from the HR sample schema EMPLOYEES table. When using Java annotations you only specify what can not be deduced from the code. If your Java class name is Employee but the table name is EMPLOYEES, you need to specify the table name, otherwise it will fail. package demo.proxy.ejb; import java.io.Serializable; import java.sql.Timestamp; import java.util.List; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.JoinColumn; import javax.persistence.ManyToOne; import javax.persistence.NamedQueries; import javax.persistence.NamedQuery; import javax.persistence.OneToMany; import javax.persistence.Table; @Entity @NamedQueries({ @NamedQuery(name = "Employee.findAll", query = "select o from Employee o") }) @Table(name = "EMPLOYEES") public class Employee implements Serializable { @Column(name="COMMISSION_PCT") private Double commissionPct; @Column(name="DEPARTMENT_ID") private Long departmentId; @Column(nullable = false, unique = true, length = 25) private String email; @Id @Column(name="EMPLOYEE_ID", nullable = false) private Long employeeId; @Column(name="FIRST_NAME", length = 20) private String firstName; @Column(name="HIRE_DATE", nullable = false) private Timestamp hireDate; @Column(name="JOB_ID", nullable = false, length = 10) private String jobId; @Column(name="LAST_NAME", nullable = false, length = 25) private String lastName; @Column(name="PHONE_NUMBER", length = 20) private String phoneNumber; private Double salary; @ManyToOne @JoinColumn(name = "MANAGER_ID") private Employee employee; @OneToMany(mappedBy = "employee") private List employeeList; public Employee() { } public Employee(Double commissionPct, Long departmentId, String email, Long employeeId, String firstName, Timestamp hireDate, String jobId, String lastName, Employee employee, String phoneNumber, Double salary) { this.commissionPct = commissionPct; this.departmentId = departmentId; this.email = email; this.employeeId = employeeId; this.firstName = firstName; this.hireDate = hireDate; this.jobId = jobId; this.lastName = lastName; this.employee = employee; this.phoneNumber = phoneNumber; this.salary = salary; } public Double getCommissionPct() { return commissionPct; } public void setCommissionPct(Double commissionPct) { this.commissionPct = commissionPct; } public Long getDepartmentId() { return departmentId; } public void setDepartmentId(Long departmentId) { this.departmentId = departmentId; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public Long getEmployeeId() { return employeeId; } public void setEmployeeId(Long employeeId) { this.employeeId = employeeId; } public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public Timestamp getHireDate() { return hireDate; } public void setHireDate(Timestamp hireDate) { this.hireDate = hireDate; } public String getJobId() { return jobId; } public void setJobId(String jobId) { this.jobId = jobId; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } public String getPhoneNumber() { return phoneNumber; } public void setPhoneNumber(String phoneNumber) { this.phoneNumber = phoneNumber; } public Double getSalary() { return salary; } public void setSalary(Double salary) { this.salary = salary; } public Employee getEmployee() { return employee; } public void setEmployee(Employee employee) { this.employee = employee; } public List getEmployeeList() { return employeeList; } public void setEmployeeList(List employeeList) { this.employeeList = employeeList; } public Employee addEmployee(Employee employee) { getEmployeeList().add(employee); employee.setEmployee(this); return employee; } public Employee removeEmployee(Employee employee) { getEmployeeList().remove(employee); employee.setEmployee(null); return employee; } } JPA could be used in standalone applications and Java EE containers. In both worlds you normally create a Facade to retrieve or store the values of the Entities to or from the database. The Facade does this via an EntityManager which will be injected by the Java EE container. Here is sample Facade Session Bean for a Java EE container. package demo.proxy.ejb; import java.util.HashMap; import java.util.List; import javax.ejb.Local; import javax.ejb.Remote; import javax.ejb.Stateless; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import javax.persistence.Query; import javax.interceptor.AroundInvoke; import javax.interceptor.InvocationContext; import oracle.jdbc.driver.OracleConnection; import org.eclipse.persistence.config.EntityManagerProperties; import org.eclipse.persistence.internal.jpa.EntityManagerImpl; @Stateless(name = "DataFacade", mappedName = "ProxyUser-TestEJB-DataFacade") @Remote @Local public class DataFacadeBean implements DataFacade, DataFacadeLocal { @PersistenceContext(unitName = "TestEJB") private EntityManager em; private String username; public Object queryByRange(String jpqlStmt, int firstResult, int maxResults) { // setSessionUser(); Query query = em.createQuery(jpqlStmt); if (firstResult 0) { query = query.setFirstResult(firstResult); } if (maxResults 0) { query = query.setMaxResults(maxResults); } return query.getResultList(); } public Employee persistEmployee(Employee employee) { // setSessionUser(); em.persist(employee); return employee; } public Employee mergeEmployee(Employee employee) { // setSessionUser(); return em.merge(employee); } public void removeEmployee(Employee employee) { // setSessionUser(); employee = em.find(Employee.class, employee.getEmployeeId()); em.remove(employee); } /** select o from Employee o */ public List getEmployeeFindAll() { Query q = em.createNamedQuery("Employee.findAll"); return q.getResultList(); } Putting Both Together To use Proxy Authentication with JPA and within a Java EE container you have to take care of the additional requirements: Use an OCI JDBC driver Provide the user name that connects through the proxy user Use an OCI JDBC driver To use the OCI JDBC driver you need to set up your JDBC data source file to use the correct JDBC URL. hr jdbc:oracle:oci8:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SID=XE))) oracle.jdbc.OracleDriver user app_user 62C32F70E98297522AD97E15439FAC0E SQL SELECT 1 FROM DUAL jdbc/hrDS Application Additionally you need to make sure that the version of the shared libraries of the OCI driver match the version of the JDBC driver in your Java EE container or Java application and are within your PATH (on Windows) or LD_LIBRARY_PATH (on most Unix-based systems). Installing the Oracle Database Instance Client software works perfectly. Provide the user name that connects through the proxy user This part needs some modification of your application software and session facade. Session Facade Changes In the Session Facade we must ensure that every call that goes through the EntityManager must be prepared correctly and uniquely assigned to this session. The second is really important, as the EntityManager works with a connection pool and can not guarantee that we set the proxy user on the connection that will be used for the database activities. To avoid changing every method call of the Session Facade we provide a method to set the username of the user that connects through the proxy user. This method needs to be called by the Facade client bfore doing anything else. public void setUsername(String name) { username = name; } Next we provide a means to instruct the TopLink EntityManager Delegate to use Oracle Proxy Authentication. (I love small helper methods to hide the nitty-gritty details and avoid repeating myself.) private void setSessionUser() { setSessionUser(username); } private void setSessionUser(String user) { if (user != null && !user.isEmpty()) { EntityManagerImpl emDelegate = ((EntityManagerImpl)em.getDelegate()); emDelegate.setProperty(EntityManagerProperties.ORACLE_PROXY_TYPE, OracleConnection.PROXYTYPE_USER_NAME); emDelegate.setProperty(OracleConnection.PROXY_USER_NAME, user); emDelegate.setProperty(EntityManagerProperties.EXCLUSIVE_CONNECTION_MODE, "Always"); } } The final step is use the EJB 3.0 AroundInvoke interceptor. This interceptor will be called around every method invocation. We therefore check whether the Facade methods will be called or not. If so, we set the user for proxy authentication and the normal method flow continues. @AroundInvoke public Object proxyInterceptor(InvocationContext invocationCtx) throws Exception { if (invocationCtx.getTarget() instanceof DataFacadeBean) { setSessionUser(); } return invocationCtx.proceed(); } Benefits Using Oracle Proxy Authentification has a number of additional benefits appart from implementing the role model of your application: Fine grained access control for temporary users of the account, without compromising the original password. Enabling database auditing and logging. Better identification of performance bottlenecks. References Effective Oracle Database 10g Security by Design, David Knox TopLink Developer's Guide, Chapter 98

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  • 10 steps to enable &lsquo;Anonymous Access&rsquo; for your SharePoint 2010 site

    - by KunaalKapoor
    What’s Anonymous Access? Anonymous access to your SharePoint site enables all visitors to view your SharePoint site anonymously without having to log in. With this blog I’d like to go through an easy step wise procedure to enable/set up anonymous access. Before you actually enable anonymous access on the site, you’ll have to change some settings at the web app level. So let’s start with that: Prerequisite(s): 1. A hosted SharePoint 2010 farm/server. 2. An existing SharePoint site. I just thought I’d mention the above pre-reqs, since the steps mentioned below would’nt be valid or a different type of a site. Step 1: In Central Administration, under Application Management, click on the Manage web applications. Step 2: Now select the site you want to enable anonymous access and click on the Authentication Providers icon. Step 3: On the modal window click on the Default zone. Step 4: Now under the Edit Authentication section, check Enable anonymous access and click Save. This is basically to make the Anonymous Access authentication mechanism available at the web app level @ IIS. Now, web application will allow anonymous access to be set. 5. Going back to Web Application Management click on the Anonymous Policy icon. Step 6: Also before we proceed any further, under the Anonymous Access Restrictions (@ web app mgmt.) select your Zone and set the Permissions to None – No policy and click Save. Step 7:  Now lets navigate to your top level site collection for the web application. Click the Site Actions > Site Settings. Under Users and Permissions click Site permissions. Step 8: Under Users and Permissions, click on Site Permissions. Step 9: Under the Edit tab, click on Anonymous Access. Step 10: Choose whether you want Anonymous users to have access to the entire Web site or to lists and libraries only, and then click on OK. You should now be able to see the view as below under your permissions Also keep in mind: If you are trying to access the site from a browser within the domain, then you’ll need to change some browser settings to see the after affects. Normally this is because the browsers (Internet Explorer) is set to log in automatically to intranet zone only , not sure if you have explicitly changed the zones and added it to trusted sites. If this is from a box within your domain please try to access the site by temporarily changing the Internet Explorer setting to Anonymous Logon on the zone that the site is added example "Intranet" and try . You will find the same settings by clicking on Tools > Internet Options > Security Tab.

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  • What tool or scripts do you use to audit a Linux box?

    - by Sharjeel Sayed
    I use the following tools for my auditing needs A) System Auditing and Hardening (One time) 1) Linux Security Auditing Tool (Security centric,Text based output ) 2) Dmidecode ( Retrieves info from BIOS ) 3) Systeminfo ( Generates a nice html report) 4) Syssumm (Inactive since Oct 2000) 5) Rootkit Hunter (Does a basic config check in addition to rootkit checks) 6) CIS benchmarks 7) Bastille ( Interactive hardening and a security scoring tool) B) Automatic Auditing (as a cron job or a service) 1) Logwatch 2) Psad C) Remote Auditing 1) Nmap (Port scanning) 2) Nessus ( Remote Vulnerability check) D) Wikipedia 1) System profiler Any other tools/scripts which you can recommend?

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  • Accessing A Shared Directory That Has An Account White List

    - by Xan
    I'm on a LAN here at work and I have my desktop sharing some of my project folders. I can access the computer via \\ComputerIP\, but I can't actually open any of the folders. Upon attempting, I get the error: Windowns cannot access \ComputerIP\ProjectFolder You do not have permission to access \ComputerIP\ProjectFolder. Contact your network administrator to request access. For more information about permissions, see Windows Help and Support Now, this is understood considering I've made it so that you had to utilize the "Project" credentials to connect. I have a user account on my main computer hosting these shared folders that gives full access to the folders if you are this "Project" user. I can Remote Desktop the computer just fine from my laptop using either set of credentials. When I try to open these folders it doesn't give me the option to attempt to apply any credentials like it does when I remote desktop. How am I supposed to gain access to these folders?

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  • Implications of allowing Windows clients to use NTLMv1?

    - by Boden
    I have a web application that I'd like to authenticate to using pass-through NTLM for SSO. There is a problem, however, in that NTLMv2 apparently will not work in this scenario (without the application storing an identical password hash). I enabled NTLMv1 on one client machine (Vista) using its local group policy: Computer-Windows Settings-Security Settings-Network Security: LAN Manager authentication level. I changed it to Send LM & NTLM - use NTLMv2 session security if negotiated. This worked, and I'm able to login to the web application using NTLM. Now this application would be used by all of my client machines... so I'm wondering what the security risks are if I was push this policy out to all of them (not to the domain controller itself though)?

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  • Is it OK to use images of GPD'd code in a CC 3.0 BY video?

    - by marcusw
    I am making a video in which I would like to use pictures of some Linux Kernel code. I am looking to release the finished product under the CC 3.0 BY license, but the Kernel is released under the GPL, which would not allow this if the code is in text format. However, since it will be in low-resolution, incredibly incomplete, non-usable, non-compilable, non-editable (at least without lots of finagling) format, would this constitute fair use or find another loophole to slip through? Thanks for the help, I will understand if this is considered off topic.

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  • Is it OK to use images of GPL'd code in a CC 3.0 BY video?

    - by marcusw
    I am making a video in which I would like to use pictures of some Linux Kernel code. I am looking to release the finished product under the CC 3.0 BY license, but the Kernel is released under the GPL, which would not allow this if the code is in text format. However, since it will be in low-resolution, incredibly incomplete, non-usable, non-compilable, non-editable (at least without lots of finagling) format, would this constitute fair use or find another loophole to slip through? Thanks for the help, I will understand if this is considered off topic.

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  • Windows 7: "Replace All Child Object Permissions" Doesn't Stay Checked

    - by raywood
    I right-click on a top-level folder in Windows Explorer. I choose Properties Security tab Advanced Change Permissions. I check "Replace all child object permissions with inheritable permissions from this object" Apply. I get a Windows Security dialog that says, "Setting security information on" the list of objects that flashes by. But now the "Replace all child object permissions" box is unchecked. What is happening here?

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  • When to use an MS SQL instance vs. different database on same instance

    - by BoxerBucks
    We have some MS SQL servers that are setup with different instances on the same server to separate applciation DB's as well as some servers that are setup with all DB's on the same instance, just separated with security settings. When is it advisable to create a new instance for SQL server and install your DB's in that instance as opposed to just creating a new DB on the same instance and putting security around the database itself? Is there more to the decision that just a security aspect?

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  • Allow members of a group to be unlocked by a specific account on AD

    - by JohnLBevan
    Background I'm creating a service to allow support staff to enable their firecall accounts out of hours (i.e. if there's an issue in the night and we can't get hold of someone with admin rights, another member of the support team can enable their personal firecall account on AD, which has previously been setup with admin rights). This service also logs a reason for the change, alerts key people, and a bunch of other bits to ensure that this change of access is audited / so we can ensure these temporary admin rights are used in the proper way. To do this I need the service account which my service runs under to have permissions to enable users on active directory. Ideally I'd like to lock this down so that the service account can only enable/disable users in a particular AD security group. Question How do you grant access to an account to enable/disable users who are members of a particular security group in AD? Backup Question If it's not possible to do this by security group, is there a suitable alternative? i.e. could it be done by OU, or would it be best to write a script to loop through all members of the security group and update the permissions on the objects (firecall accounts) themselves? Thanks in advance. Additional Tags (I don't yet have access to create new tags here, so listing below to help with keyword searches until it can be tagged & this bit editted/removed) DSACLS, DSACLS.EXE, FIRECALL, ACCOUNT, SECURITY-GROUP

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  • All HTTPS, or is it OK to accept HTTP and redirect (secure vs. user friendly)

    - by tharrison
    Our site currently redirects requests sent to http://example.com to https://example.com -- everything beyond this is served over SSL. For now, the redirect is done with an Apache rewrite rule. Our site is dealing with money, however, so security is pretty important. Does allowing HTTP in this way pose any greater security risk than just not opening or listening on port 80? Ideally, it's a little more user-friendly to redirect. (I am aware that SSL is only one of a large set of security considerations, so please make the generous assumption that we have done at least a "very good" job of covering various security bases.)

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  • Rails: Obfuscating Image URLs on Amazon S3? (security concern)

    - by neezer
    To make a long explanation short, suffice it to say that my Rails app allows users to upload images to the app that they will want to keep in the app (meaning, no hotlinking). So I'm trying to come up with a way to obfuscate the image URLs so that the address of the image depends on whether or not that user is logged in to the site, so if anyone tried hotlinking to the image, they would get a 401 access denied error. I was thinking that if I could route the request through a controller, I could re-use a lot of the authorization I've already built into my app, but I'm stuck there. What I'd like is for my images to be accessible through a URL to one of my controllers, like: http://railsapp.com/images/obfuscated?member_id=1234&pic_id=7890 If the user where to right-click on the image displayed on the website and select "Copy Address", then past it in, it would be the SAME url (as in, wouldn't betray where the image is actually hosted). The actual image would be living on a URL like this: http://s3.amazonaws.com/s3username/assets/member_id/pic_id.extension Is this possible to accomplish? Perhaps using Rails' render method? Or something else? I know it's possible for PHP to return the correct headers to make the browser think it's an image, but I don't know how to do this in Rails... UPDATE: I want all users of the app to be able to view the images if and ONLY if they are currently logged on to the site. If the user does not have a currently active session on the site, accessing the images directly should yield a generic image, or an error message.

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  • Are there any security vulnerabilities in this PHP code?

    - by skorned
    Hi. I just got a site to manage, but am not too sure about the code the previous guy wrote. I'm pasting the login procedure below, could you have a look and tell me if there are any security vulnerabilities? At first glance, it seems like one could get in through SQL injection or manipulating cookies and the ?m= parameter. define ( 'CURRENT_TIME', time ()); / / Current time. define ( 'ONLINE_TIME_MIN', (CURRENT_TIME - BOTNET_TIMEOUT)); / / Minimum time for the status of "Online". define ( 'DEFAULT_LANGUAGE', 'en'); / / Default language. define ( 'THEME_PATH', 'theme'); / / folder for the theme. / / HTTP requests. define ( 'QUERY_SCRIPT', basename ($ _SERVER [ 'PHP_SELF'])); define ( 'QUERY_SCRIPT_HTML', QUERY_SCRIPT); define ( 'QUERY_VAR_MODULE', 'm'); / / variable contains the current module. define ( 'QUERY_STRING_BLANK', QUERY_SCRIPT. '? m ='); / / An empty query string. define ( 'QUERY_STRING_BLANK_HTML', QUERY_SCRIPT_HTML. '? m ='); / / Empty query string in HTML. define ( 'CP_HTTP_ROOT', str_replace ( '\ \', '/', (! empty ($ _SERVER [ 'SCRIPT_NAME'])? dirname ($ _SERVER [ 'SCRIPT_NAME']):'/'))); / / root of CP. / / The session cookie. define ( 'COOKIE_USER', 'p'); / / Username in the cookies. define ( 'COOKIE_PASS', 'u'); / / user password in the cookies. define ( 'COOKIE_LIVETIME', CURRENT_TIME + 2592000) / / Lifetime cookies. define ( 'COOKIE_SESSION', 'ref'); / / variable to store the session. define ( 'SESSION_LIVETIME', CURRENT_TIME + 1300) / / Lifetime of the session. ////////////////////////////////////////////////// ///////////////////////////// / / Initialize. ////////////////////////////////////////////////// ///////////////////////////// / / Connect to the database. if (! ConnectToDB ()) die (mysql_error_ex ()); / / Connecting topic. require_once (THEME_PATH. '/ index.php'); / / Manage login. if (! empty ($ _GET [QUERY_VAR_MODULE])) ( / / Login form. if (strcmp ($ _GET [QUERY_VAR_MODULE], 'login') === 0) ( UnlockSessionAndDestroyAllCokies (); if (isset ($ _POST [ 'user']) & & isset ($ _POST [ 'pass'])) ( $ user = $ _POST [ 'user']; $ pass = md5 ($ _POST [ 'pass']); / / Check login. if (@ mysql_query ( "SELECT id FROM cp_users WHERE name = '". addslashes ($ user). "' AND pass = '". addslashes ($ pass). "' AND flag_enabled = '1 'LIMIT 1") & & @ mysql_affected_rows () == 1) ( if (isset ($ _POST [ 'remember']) & & $ _POST [ 'remember'] == 1) ( setcookie (COOKIE_USER, md5 ($ user), COOKIE_LIVETIME, CP_HTTP_ROOT); setcookie (COOKIE_PASS, $ pass, COOKIE_LIVETIME, CP_HTTP_ROOT); ) LockSession (); $ _SESSION [ 'Name'] = $ user; $ _SESSION [ 'Pass'] = $ pass; / / UnlockSession (); header ( 'Location:'. QUERY_STRING_BLANK. 'home'); ) else ShowLoginForm (true); die (); ) ShowLoginForm (false); die (); ) / / Output if (strcmp ($ _GET [ 'm'], 'logout') === 0) ( UnlockSessionAndDestroyAllCokies (); header ( 'Location:'. QUERY_STRING_BLANK. 'login'); die (); ) ) ////////////////////////////////////////////////// ///////////////////////////// / / Check the login data. ////////////////////////////////////////////////// ///////////////////////////// $ logined = 0, / / flag means, we zalogininy. / / Log in session. LockSession (); if (! empty ($ _SESSION [ 'name']) & &! empty ($ _SESSION [ 'pass'])) ( if (($ r = @ mysql_query ( "SELECT * FROM cp_users WHERE name = '". addslashes ($ _SESSION [' name'])."' AND pass = ' ". addslashes ($ _SESSION [' pass']). " 'AND flag_enabled = '1' LIMIT 1 ")))$ logined = @ mysql_affected_rows (); ) / / Login through cookies. if ($ logined! == 1 & &! empty ($ _COOKIE [COOKIE_USER]) & &! empty ($ _COOKIE [COOKIE_PASS])) ( if (($ r = @ mysql_query ( "SELECT * FROM cp_users WHERE MD5 (name )='". addslashes ($ _COOKIE [COOKIE_USER ])."' AND pass = '". addslashes ($ _COOKIE [COOKIE_PASS]). " 'AND flag_enabled = '1' LIMIT 1 ")))$ logined = @ mysql_affected_rows (); ) / / Unable to login. if ($ logined! == 1) ( UnlockSessionAndDestroyAllCokies (); header ( 'Location:'. QUERY_STRING_BLANK. 'login'); die (); ) / / Get the user data. $ _USER_DATA = @ Mysql_fetch_assoc ($ r); if ($ _USER_DATA === false) die (mysql_error_ex ()); $ _SESSION [ 'Name'] = $ _USER_DATA [ 'name']; $ _SESSION [ 'Pass'] = $ _USER_DATA [ 'pass']; / / Connecting language. if (@ strlen ($ _USER_DATA [ 'language'])! = 2 | |! SafePath ($ _USER_DATA [ 'language']) | |! file_exists ( 'system / lng .'.$_ USER_DATA [' language '].' . php'))$_ USER_DATA [ 'language'] = DEFAULT_LANGUAGE; require_once ( 'system / lng .'.$_ USER_DATA [' language'].'. php '); UnlockSession ();

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  • Help A Hacker: Give ‘Em The Windows Source Code

    - by Ken Cox [MVP]
    The announcement of another Windows megapatch reminded me of a WikiLeaks story about Microsoft Windows that hasn’t attracted much attention. Alarmingly, we learn that the hackers have the Windows source code to study and test for vulnerabilities. Chinese hackers used the knowledge to breach Google’s accounts and servers: “In 2003, the CNITSEC signed a Government Security Program (GSP) international agreement with Microsoft that allowed select companies such as TOPSEC access to Microsoft source code in order to secure the Windows platform” “CNITSEC enterprises has recruited Chinese hackers in support of nationally-funded "network attack scientific research projects." From June 2002 to March 2003, TOPSEC employed a known Chinese hacker, Lin Yong (a.k.a. Lion and owner of the Honker Union of China), as senior security service engineer…” Windows is widely seen as unsecurable. It doesn’t help that Chinese government-funded hackers are probing the source code for vulnerabilities. It seems odd that people who didn’t write the code can find vulnerabilities faster than the owners of the code. Perhaps the U.S. government should hire its own hackers to go over the same Windows source code and then tell Microsoft how to secure its product?

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  • Microsoft Channel 9 Interviews Mei Liang to Introduce Sample Browser Extension for Visual Studio 2012 and 2010

    - by Jialiang
    This morning, Microsoft Channel 9 interviewed Mei Liang - Group Manager of Microsoft All-In-One Code Framework - to introduce the newest Sample Browser extension for Visual Studio 2012 &2010.   This extension provides a way for developers to search and download more than 4500 code samples from within Visual Studio, including over 700 Windows 8 samples and more than 1000 All-In-One Code Framework customer-driven code samples. Mei shows us not only the extension, but also the standalone version of the Sample Browser.   http://channel9.msdn.com/Shows/Visual-Studio-Toolbox/Sample-Browser-Visual-Studio-Extension   Microsoft All-In-One Code Framework, working in close partnership with the Visual Studio product team and MSDN Samples Gallery, developed the Sample Browser extension for both Visual Studio 2012 and Visual Studio 2010.  As an effort to evolve the code sample use experience and improve developers' productivity, the Sample Browser allows programmers to search, download and open over 4500 code samples from within Visual Studio with just a few simple clicks.  If no existing code sample can meet the needs, developers can even request a code sample easily from Microsoft thanks to the free “Sample Request Service” offered by Microsoft All-In-One Code Framework.  Through innovations, the teams hope to put the power of tens of thousands of code samples at developers’ fingertips. In short 3 months, the Sample Browser Visual Studio Extension has been installed by 100K global users.  It is also selected as one of the six most highly regarded and commonly used tools for Visual Studio that will make your programming experience feel like never before.   Got to love the All-In-One Code Framework team! You guys know this is THE go to source for code samples. Get this extension and you'll never need to leave VS2012 (well except for bathroom trips, but that's TMI anyway... ;) Read More... From: Greg Duncan (Author of CoolThingOfTheDay) 9/6/2011 12:00 AM The one software design pattern that I have used in just about every application I’ve written is “cut-and-paste,” so the new “Sample Browser” – read sample as a noun not an adjective – is a great boon to my productivity. Read More... From: Jim O'Neil (Microsoft Developer Evangelist) 9/28/2011 12:00 AM Install: http://aka.ms/samplebrowservsx Microsoft All-In-One Code Framework also offers the standalone version of Sample Browser.   The standalone version is particularly useful to Visual Studio Express edition or Visual Studio 2008 users, who cannot install the Sample Browser Visual Studio extension.   From Grassroots’ Passion for Developers to the Innovation of Sample Browser This Sample Browser has come a very long way improving the code sample use experience.  The history can be traced back to a grass-root innovation three years ago.   In early 2009, a few MSDN forum support engineers observed that lots of developers were struggling to work in Visual Studio without adequate code samples. Programming tasks seem harder than they should be when you only read through the documentation.  Just a couple of lines of sample code could answer a lot of questions.   They had a brilliant idea: What if we produce code samples based on developers’ frequently asked programming tasks in forums, social networks and support incidents, and then aggregate all our sample code in a one-stop library to benefit developers?  And what if developers can request code samples directly from Microsoft, free of charge?  This small group of grassroots at Microsoft devoted their nights and weekends to prototyping such a customer-driven code sample library.  This simple idea eventually turned into “Microsoft All-In-One Code Framework”, aka. OneCode.  With the support from more and more passionate developers at Microsoft and the leaders in the Community and Online Support team and Microsoft Commercial Technical Services (CTS), the idea has become a continually growing library with over 1000 customer-driven code samples covering almost all Microsoft development technologies.  These code samples originated from developers’ common pains and needs should be able to help many developers.  However, if developers cannot easily discover the code samples, the effort would still be in vain.  So in early 2010, the team started the idea of Sample Browser to ease the discovery and access of these samples.  In just two months, the first version of Sample Browser was finished and released by a passionate developer.  It was a very simple application, only supporting the basic sample offline search.  Users had to download the whole 100MB sample package containing all samples first, and run the Sample Browser to search locally.   Though developers could not search and download samples on-demand, this simple application laid a solid foundation for the team’s continuous innovations of Sample Browsing experience. In 2011, MSDN Samples Gallery had a big refresh.  The online sample experience was brought to a new level thanks to its PM Steven Wilssens and the gallery team’s effort.  Microsoft All-In-One Code Framework Team saw the opportunity to realize the “on-demand” sample search and download feature with the new gallery.  The two teams formed a strong partnership to upload all the customer-driven code samples to MSDN Samples Gallery, and released the new version of Sample Browser to support “on-demand” sample downloading in April, 2011.  Mei Liang, the Group Manager of Microsoft All-In-One Code Framework, was interviewed by Channel 9 to demo the Sample Browser.  Customers love the effort and the innovation!!  This can be clearly seen from the user comments in the publishing page.   It was very encouraging to the team of All-In-One Code Framework. The team continues innovating and evolving the Sample Browser.  They found the Visual Studio product team this time, and integrated the Sample Browsing experience into the latest Visual Studio 2012.  The newly released Sample Browser Visual Studio extension makes good use of Visual Studio 2012 IDE such as the new Quick Launch bar, the code editor, the toolbar and menus to offer easy access to thousands of code samples from within the development environment.   The Visual Studio Senior Program Manager Lead - Anthony Cangialosi, the Program Manager - Murali Krishna Hosabettu Kamalesha, the MSDN Samples Gallery PM – Steven Wilssens, and the Visual Studio Senior Escalation Engineer - Ed Dore shared lots of insightful suggestions with the team.  Thanks to the brilliant cross-group collaboration inside Microsoft, tens of new features including “Local Language Support” and “Favorite Samples”, as well as a face-lifted user interface, were added to further enhance the user experience. Since the new Sample Browser Visual Studio extension was released, it has received over 100 thousand downloads and five-star ratings.  A customer told the team that he officially falls in LOVE with Microsoft All-In-One Code Framework.   The Sample Browser Innovation for Developers Never Stops! The teams would never stop improving the Sample Browser for developers’ easier lives.   The Microsoft All-In-One Code Framework, Visual Studio and MSDN Samples Gallery teams are working closely to develop the next version of Sample Browser.  Here are the key functions in development or in discussion.  We hope to learn your feedback of the effort.  You can submit your suggestions to the official Visual Studio UserVoice site.  We look forward to hearing from you! 1) Offline Sample Search This is one of the top feature requests that we have received for Sample Browser.   The Sample Browser will support the offline search mode so that developers can search downloaded code samples when they do not have internet access.  This is particularly useful to developers in Enterprises with strict proxy settings. 2) Code Snippet Support and Visual Studio Editor Integration Today, the Sample Browser supports downloading and opening sample project.   However, when developers are searching for code samples, a better user experience would be to see the code snippets in the search result first.  Developers can quickly decide if the code snippet is relevant.   They can also drag and drop the code snippet into the Visual Studio Editor to solve some simple programming tasks.  If developers want to learn more about the sample, they can then choose to download the sample project and open it in Visual Studio. 3) Enterprise Sample Sharing and Searching Large enterprises have many code samples for their own internal tools and APIs that are not appropriate to be shared publicly in MSDN Samples Gallery.   In that case, today’s Sample Browser and MSDN Samples Gallery cannot help these Enterprise developers.  The idea is to create a Code Sample Repository in TFS, and provide an additional Visual Studio extension for Enterprise developers to quickly share code samples to TFS.  The Sample Browser can be configured to connect to the TFS Code Sample Repository to search for and download code samples.  This would potentially enable the Enterprise developers to be more productive. 4) Windows Store Sample Browser With the upcoming release of Windows RT and Microsoft Surface, developers are facing a completely new world of application platform.   Not like laptop, people would often use Microsoft Surface in commute and in travel.  Internet may not be available.  Today’s Visual Studio cannot be installed and run on Windows RT, however, our enthusiastic developers would hope to spend every minute on code.  They love code!   The idea is to create a Windows Store version of Sample Browser. Search and download samples from the online Samples Gallery when the user has internet access. Browse the sample code files and learn the sample documentation of downloaded samples with or without internet access.   In addition to the "browse” function, the Sample Browser could further support “bookmark”, “learning notes”, “code review”, and “quick social sharing". Make full use of the new touch and Windows Store App UI to give developers a new “relaxing” code browsing and learning experience, anytime, anywhere. With Windows Store Sample Browser, developers can enjoy A new relaxing and enjoyable experience for developers to learn code samples You do not have to sit in front of desk and formally open Visual Studio to read code samples.  Many developers get sub-health due to staying in front of desk for a very long time.  With Windows RT, Microsoft Surface and this Windows Store Sample Browser combining with the online MSDN Samples Gallery, developers can sit in a sofa, relaxingly hold the tablet and enjoy to learn their beloved sample code with detailed documentation. Anytime, anywhere Whether you have internet access or not, whether you are at home, in office, or in commute/airplane, developers can always easily access and browse the sample code. Lightweight and fast Particularly for learning a small sample project, the Windows Store Sample Browser would be more lightweight and faster to open and browse the sample code. Please submit your feedback and suggestion to Visual Studio UserVoice.  We look forward to hearing from you and deliver a better and better sample use experience.  Happy Coding!   Special Thanks to People working behind the latest release of Sample Browser Visual Studio Extension and the great partnerships!

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