VRT Advisories


April 2010 Archive

VRT Rules 2010-04-29

Sourcefire VRT Rules Update

Date: 2010-04-29

Synopsis:

This release updates numerous rules in multiple categories to take advantage of new detection engine features.

Details:

As a result of new detection engine features, the Sourcefire VRT has updated multiple rule categories to increase individual rule 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 Apr 29, 2010



VRT Rules 2010-04-26

Sourcefire VRT Rules Update

Date: 2010-04-26

Synopsis:

This release contains support for Snort 2.8.6.0. Additionally, new packages have been added that contain 4 digit versioning.

New package names: 1. snortrules-snapshot-2853_s.tar.gz 2. snortrules-snapshot-2860_s.tar.gz

Details:

The packages have been updated with support for Snort 2.8.6.0. Additionally, a number of improvements have been made to the packages to help clarify which packages to use with your specific snort version.

New package names: 1. snortrules-snapshot-2853_s.tar.gz 2. snortrules-snapshot-2860_s.tar.gz

The Old Package names are still available but they are now symlinked to the new package names. The symlinks will exist for the next 30 days.

Symlinks Subscriber: 1. snortrules-snapshot-2853_s.tar.gz -> snortrules-snapshot-CURRENT_s.tar.gz 2. snortrules-snapshot-2853_s.tar.gz -> snortrules-snapshot-2.8_s.tar.gz

* IMPORTANT * The above is not a typo. The 2853 is symlinked to CURRENT and 2.8 packages this is intentional, as to not break auto downloaders that define CURRENT incorrectly.

Registered Users: There are no new symlinks for registered users as the new packages won't be available to registered users for 30 days.

Additional Package Updates.

1. Packages are now locked to the version of snort they support. This includes sub directories in the packages. For examples the 2853 packages now only contain SO rules for 2.8.5.3.

2. Snort.conf in etc/ directory has been updated to support additional features in 2.8.5.3 and 2.8.6.0.

3. Preprocessor Rules are now contained in the package.

4. For 2.8.6.0 Sensitive data rules are contained in the package.

Not running 2.8.5.3 and downloading CURRENT / 2.8 / 2853 packages ?:

1. You will need to modify oinkmaster, pulled pork, or whatever update system you are using to remove 2.8.5.3 version specific rule keywords or snort will fail to load.

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 Apr 26, 2010



VRT Rules 2010-04-15

Sourcefire VRT Rules Update

Date: 2010-04-15

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, web-misc, web-activex, spyware-put and specific-threats 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 Apr 15, 2010



VRT Rules 2010-04-13

Sourcefire VRT Rules Update

Date: 2010-04-13

Synopsis:

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

Details:

Microsoft Security Advisory (MS10-019):
The Microsoft CAB Subject Interface Package (SIP) implementation contains a programming error that may allow a remote attacker to bypass the authentication mechanism.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 16530.

Microsoft Security Advisory (MS10-020):
The Microsoft implementation of the SMB protocol 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 16531, 16532, 16539 and 16540.

Microsoft Security Advisory (MS10-023):
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 16542.

Microsoft Security Advisory (MS10-024):
The Microsoft SMTP service is prone to a Denial of Service condition that may be triggered by a remote attacker.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 16534.

Microsoft Security Advisory (MS10-025):
The Microsoft Windows Media Service suffers from 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 16541.

Microsoft Security Advisory (MS10-026):
Microsoft Windows Media Player 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 16543.

Microsoft Security Advisory (MS10-027):
Microsoft Windows Media Player contains a programming error that may allow a remote attacker to execute code on an affected system via an ActiveX control.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 16537.

Microsoft Security Advisory (MS10-028):
Microsoft Visio suffers from 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 16535 and 16536.

Microsoft Security Advisory (MS10-029):
The Microsoft implementation of IPv6 contains a programming error that may allow a remote attacker to spoof connections to an affected host.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 16533.

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 Apr 13, 2010



VRT Rules 2010-04-08

Sourcefire VRT Rules Update

Date: 2010-04-08

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, web-misc, policy, chat and ftp 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 Apr 08, 2010



VRT Rules 2010-04-06

Sourcefire VRT Rules Update

Date: 2010-04-06

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, oracle, smtp, chat and sql 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 Apr 06, 2010