VRT Advisories


June 2009 Archive

VRT Rules 2009-06-22

Sourcefire VRT Rules Update

Date: 2009-06-22

Synopsis:

This release adds and modifies rules in several categories.

Details:

As a result of ongoing research, the Sourcefire VRT has modified a number of rules to improve detection performance.

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.

Posted by on Jun 22, 2009



VRT Rules 2009-06-16

Sourcefire VRT Rules Update

Date: 2009-06-16

Synopsis:

This release adds and modifies rules in several categories.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the exploit, spyware-put, dos, content-replace 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.

Posted by on Jun 16, 2009



VRT Rules 2009-06-12

Sourcefire VRT Rules Update

Date: 2009-06-12

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting Adobe Acrobat, Adobe Reader and Symantec products.

Details:

Adobe Acrobat and Reader Remote Vulnerability (CVE-2009-1859):
Adobe Acrobat and Acrobat Reader contain programming errors that may allow a remote attacker to execute code on a vulnerable system. The errors occur in the processing of embedded image files in a PDF document.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15562.

Symantec Alert Management System Buffer Overflow (CVE-2009-1430):
The Symantec Alert Management System contains multiple vulnerabilities that may allow a remote attacker to execute code on an affected system.

A rule to detect attacks targeting these vulnerabilities is included in this release and is identified with GID 1, SID 15555.

Symantec Alert Management System Code Execution (CVE-2009-1431):
The Symantec Alert Management System contains multiple vulnerabilities that may allow a remote attacker to execute code on an affected system.

A rule to detect attacks targeting these vulnerabilities is included in this release and is identified with GID 1, SID 15556.

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.

Posted by on Jun 12, 2009



VRT Rules 2009-06-09

Sourcefire VRT Rules Update

Date: 2009-06-09

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting Microsoft products.

Details:

Microsoft Security Advisory MS09-018:
The Microsoft Windows LDAP implementation contains programming errors that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 15522 and 15527.

Microsoft Security Advisory MS09-019:
Microsoft Internet Explorer contains multiple vulnerabilities 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 3, SIDs 15529, 15531, 15534 through 15536, 15538 and 15540.

Additionally, a previously released rule identified with GID 1, SID 7070 will also detect attacks targeting these vulnerabilities.

Microsoft Security Advisory MS09-027:
Microsoft Word contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 15524 and 15525.

Microsoft Security Advisory MS09-021:
Microsoft Excel contains programming errors that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 15519 through 15521, 15537, 15539, 15541 and 15542.

Microsoft Security Advisory MS09-022:
The Microsoft Print Spooler Service 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 3, SIDs 15523 and 15528.

Microsoft Security Advisory MS09-023:
The Microsoft Windows Search utility may allow information disclosure via the viewing of a specially crafted file.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 15530, 15532 and 15533.

Microsoft Security Advisory MS09-024:
The Microsoft Works font converter contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15526.

Microsoft Security Advisory MS09-020:
Microsoft Internet Information Server (IIS) contains programming errors that may allow a remote attacker to access information from the server without the need for authentication.

These vulnerabilities are detected by the HTTP Inspect preprocessor.

Additionally, this release contains a bug fix for a previously released rule identified with GID 3, SID 13954 that may, under some circumstances, cause performance issues.

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.

Posted by on Jun 09, 2009