VRT Advisories


VRT Rules 2013-02-12

Sourcefire VRT Rules Update

Date: 2013-02-12

Synopsis:

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

Details:

Microsoft Security Bulletin MS13-009:
Microsoft Internet Explorer contains programming errors that may allow a remote attacker to execute code on a vulnerable system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 1, SIDs 25769 through 25778, 25784 through 25789 and 25792 through 25794.

Microsoft Security Bulletin MS13-010:
Microsoft Internet Explorer contains a programming error that may allow a remote attacker to execute code on a vulnerable system via a Vector Markup Language (VML) object.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 25773.

Microsoft Security Bulletin MS13-011:
Microsoft Windows DirectShow 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 25795 and 25796.

Microsoft Security Bulletin MS13-018:
The Microsoft Windows networking stack contains a programming error that may allow a remote attacker to cause a Denial of Service (DoS) against a vulnerable system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 25774.

Microsoft Security Bulletin MS13-020:
The Microsoft Office ActiveX control contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

Previously released rules will detect attacks targeting this vulnerability and are included in this release with updated reference information. They are identified with GID 1, SIDs 23844, 23845 and 24006.

Additionally, the Sourcefire VRT has added and modified multiple rules in the blacklist, browser-firefox, browser-ie, browser-webkit, exploit-kit, file-executable, file-flash, file-identify, file-image, file-multimedia, file-office, file-other, file-pdf, indicator-obfuscation, indicator-shellcode, malware-cnc, malware-other, os-windows, server-mail, server-mssql and server-webapp 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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