VRT Advisories

VRT Rules 2011-03-15

Sourcefire VRT Rules Update

Date: 2011-03-15


The Sourcefire VRT is aware of a vulnerability affecting Adobe Flash Player.


Adobe Security Advisory APSA11-01: Adobe Flash Player contains a programming error that may allow a remote attacker to execute code on an affected system. This problem affects the Microsoft Windows, Apple Mac OS, Linux and Solaris operating systems.

The Sourcefire VRT have reports of this vulnerability being exploited in the wild via an embedded Flash file in a Microsoft Excel document delivered via email.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SID 18543, GID 1, SIDs 18545 through 18554.

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.

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