VRT Advisories


VRT Rules 2012-12-11

Sourcefire VRT Rules Update

Date: 2012-12-11

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting products from Microsoft Corporation.

Details:

Microsoft Security Bulletin MS12-077:
Microsoft Internet Explorer contains a programming error that may allow a remote attacker to execute code on an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 24956.

Microsoft Security Bulletin MS12-078:
The Microsoft Windows Adobe Type Manager font driver (ATMFD) contains a programming error that may allow a remote attacker to cause a Denial of Service (DoS) against an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 24971.

Microsoft Security Bulletin MS12-079:
Microsoft Word contains a programming error that may allow a remote attacker to execute code on an affected system via a specially crafted rich text file.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 24974 and 24975.

Microsoft Security Bulletin MS12-081:
The Microsoft Windows operating system contains a programming error that may allow a remote attacker to execute code on an affected system via a specially crafted file name.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 24973.

Microsoft Security Bulletin MS12-082:
Microsoft DirectPlay contains a programming error that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 24957 through 24970.

Additionally, the Sourcefire VRT has added and modified multiple rules in the app-detect, browser-ie, browser-plugins, exploit, exploit-kit, file-executable, file-flash, file-multimedia, file-office, indicator-compromise, indicator-obfuscation, malware-cnc, malware-other and server-mysql 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.

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.

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