VRT Advisories

VRT Rules 2010-07-22

Sourcefire VRT Rules Update

Date: 2010-07-22


The Sourcefire VRT is aware of vulnerabilities affecting Microsoft Windows and Siemens SCADA products.


Microsoft Windows Shell Shortcut Vulnerability (CVE-2010-2568): Microsoft Windows Shell contains a vulnerability that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities and are included in this release and are identified with GID 1, SIDs 17042 and 17043.

Siemens Simatic WinCC and PCS 7 Vulnerability (CVE-2010-2772): Siemens Simatic WinCC and PCS 7 SCADA systems use a known hard coded password which can allow a remote attacker to gain unauthorized access to vulnerable systems. This is currently being exploited in the wild by the Stuxnet worm.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 17044.

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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