VRT Advisories


VRT Rules 2009-05-05

Sourcefire VRT Rules Update

Date: 2009-05-05

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting Adobe Reader.

Details:

Adobe Reader Code Execution (CVE-2009-1492):
The JavaScript API in Adobe Reader may allow a remote attacker to execute code on an affected system. The problem occurs when specially crafted JavaScript uses the getAnnots method in a PDF document.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15493.

Adobe Reader Buffer Overflow (CVE-2009-1493):
The JavaScript API in Adobe Reader may allow a remote attacker to execute code on an affected system. The problem occurs when specially crafted JavaScript uses the customDictionaryOpen method in a PDF document.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15492.

Additionally as a result of ongoing research, the Sourcefire VRT has added multiple rules to the exploit, specific-threats, backdoor, multimedia and chat 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.