VRT Advisories

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VRT Rules 2009-07-14

Sourcefire VRT Rules Update

Date: 2009-07-14

Synopsis:

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

Details:

Microsoft Security Advisory (MS09-028):
Microsoft DirectShow 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 15680 and 15682.

Microsoft Security Advisory (MS09-029):
The Microsoft Open Type Font implementation contains programming errors 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 3, SIDs 15530, 15532 and 15533.

Microsoft Security Advisory (MS09-030):
Microsoft Publisher 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 3, SID 15681.

Microsoft Security Advisory (MS09-031):
The Microsoft ISA server contains a programming error that may allow a remote attacker to gain unauthorized access to an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15683.

Microsoft Security Advisory (MS09-032):
The Microsoft Video ActiveX control contains a vulnerability that may allow a remote attacker to execute code on a vulnerable system. The attacker may take advantage of the vulnerability via a call to the ActiveX control from Internet Explorer. This vulnerability requires no user interaction and is being actively exploited.

Previously released rules to detect attacks targeting this vulnerability are included in this release with updated references, and are identified with GID 1, SIDs 15588 through 15677.

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 Jul 14, 2009



VRT Rules 2009-07-07

Sourcefire VRT Rules Update

Date: 2009-07-07

Synopsis:

The Sourcefire VRT is aware of a vulnerability in the Microsoft Video ActiveX control that is being actively exploited.

Details:

Microsoft Security Advisory (972890):
The Microsoft Video ActiveX control contains a vulnerability that may allow a remote attacker to execute code on a vulnerable system. The attacker may take advantage of the vulnerability via a call to the ActiveX control from Internet Explorer. This vulnerability requires no user interaction and is being actively exploited.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 15588 through 15677.

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 Jul 07, 2009



VRT Rules 2009-07-01

Sourcefire VRT Rules Update

Date: 2009-07-01

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 web-client, spyware-put, web-misc, netbios 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 Jul 01, 2009



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



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