VRT Advisories


VRT Rules 2013-03-12

Sourcefire VRT Rules Update

Date: 2013-03-12

Synopsis:

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

Details:

Microsoft Security Bulletin MS13-021:
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 25775, 26125, 26129, 26130, 26132 through 26138, 26157 through 26162, 26168 and 26169.

Microsoft Security Bulletin MS13-023:
Microsoft Visio contains a programming error 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 26163 and 26164.

Microsoft Security Bulletin MS13-024:
Microsoft SharePoint contains programming errors that may allow a remote attacker to elevate privileges on a vulnerable system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 1, SIDs 26124, 26131 and 26165 through 26167.

Microsoft Security Bulletin MS13-025:
A vulnerability in Microsoft OneNote may allow a remote attacker to gain access to sensitive information.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 26170 and 26171.

Additionally, the Sourcefire VRT has added and modified multiple rules in the blacklist, browser-firefox, browser-ie, browser-plugins, 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-linux, os-other, os-windows, policy-other, policy-spam, scada, server-mail, server-oracle 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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