VRT Advisories

VRT Rules 2008-12-11

Sourcefire VRT Rules Update

Date: 2008-12-11


The Sourcefire VRT is aware of multiple vulnerabilities affecting Microsoft products.


Microsoft Security Advisory (961051):
Microsoft Internet Explorer is vulnerable to an attack that may allow a remote attacker to execute code on an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15126.

Microsoft SQL Server Buffer Overflow (CVE-2008-5416):
A vulnerability in Microsoft SQL Server may allow a remote attacker to execute code on a vulnerable system. This issue may be exploited via the sp_replwritetovarbin stored procedure.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 1, SIDs 15127 through 15144.

Rule Pack Summary:

For a complete list of new and modified rules, click here.


Sourcefire VRT rule packs often utilize enhancements made to Snort. Operators should upgrade to the latest revision or patch level for Snort to ensure these enhancements are available before using these rules.

About the VRT:

The Sourcefire VRT is a group of leading edge intrusion detection and prevention experts working to proactively discover, assess and respond to the latest trends in hacking activity, intrusion attempts and vulnerabilities. This team is also supported by the vast resources of the open source Snort community, making it the largest group dedicated to advances in the network security industry.