VRT Advisories


VRT Rules 2009-03-10

Sourcefire VRT Rules Update

Date: 2009-03-10

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting Microsoft Windows systems.

Details:

Microsoft Security Bulletin MS09-006:
A programming error in the Microsoft Windows kernel may allow a remote attacker to execute code with system level privileges. This may be exploited when specially crafted EMF files are viewed using Microsoft Internet Explorer.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15300.

Microsoft Security Bulletin MS09-008:
The DNS protocol as implemented in Microsoft Windows systems may allow a remote attacker to spoof DNS traffic via cache poisoning techniques. Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 15386 and 15387.

Additionally, a previously released rule will detect attacks targeting this vulnerability and is identified with GID 1, SID 13948.

Rule Pack Summary:

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

Warning:

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.