Date Discovered October 9, 2012
Description Microsoft SQL Server is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input.
An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site.
- Microsoft SQL Server 2000 SP2
- Microsoft SQL Server 2005 32-bit SP4
- Microsoft SQL Server 2005 Express Edition with Advanced Serv SP4
- Microsoft SQL Server 2005 Itanium Edition SP4
- Microsoft SQL Server 2005 x64 Edition SP4
- Microsoft SQL Server 2008 32bit SP2
- Microsoft SQL Server 2008 32bit SP3
- Microsoft SQL Server 2008 R2 for 32-bit Systems SP1
- Microsoft SQL Server 2008 R2 for Itanium-based Systems SP1
- Microsoft SQL Server 2008 R2 for x64-based Systems SP1
- Microsoft SQL Server 2008 itanium SP2
- Microsoft SQL Server 2008 itanium SP3
- Microsoft SQL Server 2008 x64 SP2
- Microsoft SQL Server 2008 x64 SP3
- Microsoft SQL Server 2012 for 32-bit Systems
- Microsoft SQL Server 2012 for x64-based Systems
Run all software as a nonprivileged user with minimal access rights. Attackers may successfully exploit client flaws in the browser through cross-site scripting vulnerabilities. When possible, run client software as regular user accounts with limited access to system resources. This may limit the immediate consequences of client-side vulnerabilities.
Deploy network intrusion detection systems to monitor network traffic for malicious activity. Deploy NIDS to detect and block attacks and anomalous activity such as requests containing suspicious URI sequences. Since the webserver may log such requests, review its logs regularly.
Do not follow links provided by unknown or untrusted sources. Web users should be cautious about following links to websites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.
Set web browser security to disable the execution of script code or active content.
Since exploiting cross-site scripting issues often requires malicious script code to run in browsers, consider disabling script code and active content support within a client browser as a way to prevent a successful exploit. Note that this mitigation tactic might adversely affect legitimate sites that rely on the execution of browser-based script code.
Vendor updates are available. Please see the references for more information.
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