VRT Advisories


February 2011 Archive

VRT Rules 2011-02-23

Sourcefire VRT Rules Update

Date: 2011-02-23

Synopsis:

This release adds and modifies rules in several categories.

Details:

The Sourcefire VRT has added and modified multiple rules in the exploit, content-replace, netbios, web-cgi, web-client, web-misc and web-php 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.

why subscribe? || download rules

Posted by on Feb 23, 2011



VRT Rules 2011-02-17

Sourcefire VRT Rules Update

Date: 2011-02-17

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting Microsoft Windows Server 2003.

Details:

Microsoft Windows Server 2003 AD Heap Overflow: Microsoft Windows Server 2003 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 was previously released and has been updated with additional references. It is included in this release and is identified with GID 1, SID 18462.

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.

why subscribe? || download rules

Posted by on Feb 17, 2011



VRT Rules 2011-02-15

Sourcefire VRT Rules Update

Date: 2011-02-15

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting Microsoft Windows Server 2003.

Details:

Microsoft Windows Server 2003 AD Heap Overflow:
Microsoft Windows Server 2003 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 1, SID 18462.

The Sourcefire VRT has also added and modified multiple rules in the blacklist, exploit, smtp, specific-threats and web-misc 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.

why subscribe? || download rules

Posted by on Feb 15, 2011



VRT Rules 2011-02-10

Sourcefire VRT Rules Update

Date: 2011-02-10

Synopsis:

This release adds and modifies rules in several categories.

Details:

As a result of ongoing research, the Sourcefire VRT has added and modified multiple rules in the botnet-cnc, exploit, netbios, 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.

why subscribe? || download rules

Posted by on Feb 10, 2011



VRT Rules 2011-02-08

Sourcefire VRT Rules Update

Date: 2011-02-08

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting products from Microsoft and Adobe Systems.

Details:

Microsoft Security Advisory MS11-003:
Microsoft Internet Explorer suffers from 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 18403 and 18404.

Previously released rules to detect attacks targeting this vulnerability have been updated with the appropriate reference and are identified with GID 1, SIDs 18196 and 18240.

Microsoft Security Advisory MS11-004:
The Microsoft FTP Service included with IIS, suffers from a programming error that may allow a remote attacker to execute code on an affected system.

A previously released rule to detect attacks targeting this vulnerability has been updated with the appropriate reference and is identified with GID 1, SID 18243.

Microsoft Security Advisory MS11-005:
Microsoft Windows Server 2003 contains a programming error that may allow a remote attacker to execute a Denial of Service (DoS) attack against a vulnerable system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 18406 and 18407.

Microsoft Security Advisory MS11-006:
Microsoft Office suffers from a programming error that may allow a remote attacker to execute code on a vulnerable system via a malicious bitmap file.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 18398.

Microsoft Security Advisory MS11-007:
The Microsoft ATMFD Adobe font driver included in Microsoft Windows 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 18402.

Microsoft Security Advisory MS11-008:
Microsoft Visio contains programming errors that may allow a remote attacker to execute code on a vulnerable system via a malicious Visio file.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 18415, 18416 and 18417.

Microsoft Security Advisory MS11-009:
Microsoft Internet Explorer contains a programming error that may allow a remote attacker to obtain information regarding the vulnerable system via malicious JScript or VBScript.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 18401.

Microsoft Security Advisory MS11-010:
The Microsoft Windows Client/Server run-time subsystem contains a programming error that may allow a remote attacker to elevate privileges on a vulnerable system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 18400.

Microsoft Security Advisory MS11-011:
The Microsoft Windows kernel contains a programming error that may allow a remote attacker to elevate privileges on a vulnerable system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 18408 and 18413.

Microsoft Security Advisory MS11-012:
Microsoft Windows systems suffer from programming errors that may allow remote attackers to elevate privileges on a vulnerable system via kernel-mode drivers.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 18409, 18410, 18411 and 18412.

Microsoft Security Advisory MS11-013:
The Microsoft Windows Kerberos implementation may allow a remote attacker to downgrade the authentication mechanism to use DES so that the vulnerable system is subject to a spoofing vulnerability.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 18414.

Microsoft Security Advisory MS11-014:
The Microsoft Local Security Authority Subsystem Service (LSASS) contains a programming error that may allow a remote attacker to execute code with elevated privileges on a vulnerable system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 18405.

Adobe Security Advisory APSB11-03: Adobe Reader and Acrobat contain 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 18418 through 18421, 18444 and 18447 through 18456.

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.

why subscribe? || download rules

Posted by on Feb 08, 2011



VRT Rules 2011-02-01

Sourcefire VRT Rules Update

Date: 2011-02-01

Synopsis:

The Sourcefire VRT is aware of a vulnerability in Microsoft Internet Explorer. This release also adds and modifies rules in several categories.

Details:

Microsoft Security Advisory (CVE-2011-0096):
Microsoft Internet Explorer suffers from a programming error that may allow a remote attacker to execute a cross site scripting attack. This attack could then lead to information disclosure.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 18335.

Additionally, the Sourcefire VRT has added and modified multiple rules in the exploit, ftp, netbios, oracle, scada, web-activex, web-client and web-misc 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.

why subscribe? || download rules

Posted by on Feb 01, 2011