VRT Advisories

VRT Rules 2005-12-08

Sourcefire VRT Certified Rules Update

Date: 2005-12-08


The Sourcefire Vulnerability Research Team (VRT) has learned of a vulnerability in the Symantec AntiVirus Web Interface. In addition, the Sourcefire VRT has made numerous rule reference additions to existing rules in order to provide users more context for generated events.


A buffer overflow vulnerability exists in the Symantec AntiVirus Scan Engine Web Service Administrative Interface. The vulnerability exists because user supplied data is not properly checked before processing.

A rule to detect attacks targeting this vulnerability is included in this update and is identified as sid 4681.

The Sourcefire Vulnerability Research Team (VRT) has made numerous rule reference additions to existing rules and has added a number of new rules to provide coverage for additional attack vectors for existing vulnerabilities.

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 network security industry.