VRT Advisories

VRT Rules 2010-11-04

Sourcefire VRT Rules Update

Date: 2010-11-04


The Sourcefire VRT is aware of vulnerabilities affecting Microsoft Internet Explorer and ProFTP.


Microsoft Security Advisory (CVE-2010-3962):
Microsoft Internet Explorer contains a programming error that may allow a remote attacker to execute code on a vulnerable system. The error occurs when the application attempts to access an invalid flag reference after an object is deleted.

A rule to detect attacks targeting this issue is included in this release and is identified with GID 3, SID 18062.

ProFTP Remote Code Execution (CVE-2010-3867): ProFTP contains a programming error that may allow a remote attacker to execute code on an affected system.

The FTP-Telnet preprocessor will detect attacks targeting this issue, with GID 125 SID 1.

Additionally, multiple rules have been added to the spyware-put, specific-threats, blacklist and phishing-spam rule sets to provide coverage for emerging threats from these technologies.

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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