VRT Advisories


March 2009 Archive

VRT Rules 2009-03-31

Sourcefire VRT Rules Update

Date: 2009-03-31

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting MySQL and Mozilla Firefox.

Details:

MySQL Denial of Service (CVE-2009-0819):
A programming error in MySQL Server may allow a remote attacker to cause a Denial of Service (DoS) against a vulnerable machine.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 15442 and 15443.

Mozilla Firefox XML Buffer Overflow: A programming error in Mozilla Firefox may allow a remote attacker to execute code on a victim machine. The error is exposed when the application attempts to process a specially crafted XML file.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15447.

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 Mar 31, 2009



VRT Rules 2009-03-27

Sourcefire VRT Rules Update

Date: 2009-03-27

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Microsoft Internet Explorer and Mozilla Firefox.

Details:

Microsoft Windows GDI Buffer Overflow: A programming error in the Microsoft Windows kernel may allow a remote attacker to execute code with system level privileges. This may be exploited when specially crafted EMF files are viewed using Microsoft Internet Explorer.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15430.

Mozilla Firefox XSL Buffer Overflow: A programming error in Mozilla Firefox may allow a remote attacker to execute code on a victim machine. The error is exposed when the application attempts to process an XML file that has a specially crafted XSLT transform.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15431.

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 Mar 27, 2009



VRT Rules 2009-03-17

Sourcefire VRT Rules Update

Date: 2009-03-17

Synopsis:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the scada, specific-threats, content-replace and chat rule sets to provide coverage for emerging threats from these technologies.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the scada, specific-threats, content-replace and chat rule sets to provide coverage for emerging threats from these technologies.

The scada rule set now includes support for OMRON FINS. Additionally, multiple rules in the specific-threats and content-replace categories have been updated to provide more accurate detection.

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 Mar 17, 2009



VRT Rules 2009-03-10

Sourcefire VRT Rules Update

Date: 2009-03-10

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting Microsoft Windows systems.

Details:

Microsoft Security Bulletin MS09-006:
A programming error in the Microsoft Windows kernel may allow a remote attacker to execute code with system level privileges. This may be exploited when specially crafted EMF files are viewed using Microsoft Internet Explorer.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15300.

Microsoft Security Bulletin MS09-008:
The DNS protocol as implemented in Microsoft Windows systems may allow a remote attacker to spoof DNS traffic via cache poisoning techniques. Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 15386 and 15387.

Additionally, a previously released rule will detect attacks targeting this vulnerability and is identified with GID 1, SID 13948.

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 Mar 10, 2009



VRT Rules 2009-03-03

Sourcefire VRT Rules Update

Date: 2009-03-03

Synopsis:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the web-activex, specific-threats and web-client rule sets to provide coverage for emerging threats from these technologies.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the web-activex, specific-threats and web-client 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 Mar 03, 2009