VRT Advisories


VRT Rules 2007-12-18

Sourcefire VRT Rules Update

Date: 2007-12-18

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting Samba and has updated coverage for MS07-068.

Details:

Samba Buffer Overflow (CVE-2007-2446):
Samba suffers from multiple buffer overflow conditions which may be exploited by a remote attacker via special MS-RPC requests. The attacker may be able to execute code on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified as SIDs 12984 through 13157.

Microsoft Security Bulletin (MS07-068):
Microsoft Windows Media Format Runtime suffers from a programming error that may allow a remote attacker to execute code on a vulnerable system via a malformed Advanced Systems Format (ASF) file.

Rules to detect attacks targeting this vulnerability are included in this release and are identified as SIDs 13158 through 13160.

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.