VRT Advisories


July 2008 Archive

VRT Rules 2008-07-29

Sourcefire VRT Rules Update

Date: 2008-07-29

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Sun Java Web Start, Oracle Database Server and DNS implementations.

Details:

Sun Java Web Start Buffer Overflow (CVE-2008-3111):
Sun Java Web Start contains programming errors 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 1 and SID 13950.

Oracle Database Server Buffer Overflow (CVE-2008-2607):
Oracle Database Server contains programming errors that may allow a remote attacker to cause a Denial of Service (DoS) or a buffer overflow that may allow the 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 1 and SID 13951.

DNS Cache Poisoning (CVE-2008-1447):
The DNS protocol as implemented in many distributions may allow a remote attacker to spoof DNS traffic via cache poisoning techniques. In addition to the detection provided by SID 13667 for this vulnerability, the Sourcefire VRT has added SIDs 13948 and 13949 to detect anomalous backscatter DNS traffic that would be generated during a DNS cache posioning attack.

Additionally, as a result of ongoing research, the Sourcefire VRT has added multiple rules to the spyware-put and backdoor 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 29, 2008



VRT Rules 2008-07-22

Sourcefire VRT Rules Update

Date: 2008-07-22

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting IBM Lotus Domino, Novell GroupWise and Adobe RoboHelp.

Details:

IBM Lotus Domino Header Overflow (CVE-2008-2240):
IBM Lotus Domino contains a stack-based overflow condition that may allow a remote attacker to execute code on an affected system. The problem occurs when the application processes long HTTP Accept-Language headers.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 and SID 13924.

Novell GroupWise Overflow (CVE-2008-2703):
Novell GroupWise Messenger contains multiple buffer overflow conditions that may allow a remote attacker to execute code on an affected system. The problem occurs when the application processes malformed server responses.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 and SID 13926.

Adobe RoboHelp SQL Injection (CVE-2008-2991):
Adobe RoboHelp is vulnerable to multiple cross-site scripting attacks that may allow a remote attacker to inject script or HTML on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 13928 and 13929.

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 22, 2008



VRT Rules 2008-07-15

Sourcefire VRT Rules Update

Date: 2008-07-15

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Apple QuickTime and IBM Lotus Sametime.

Details:

Apple QuickTime Stack Overflow (CVE-2008-1022):
Apple QuickTime contains a programming error that may allow a remote attacker to cause a stack overflow and subsequently execute code on a vulnerable system. The problem occurs when the application processes a specially crafted VR movie file with an obj atom of zero size.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 and SID 13920.

IBM Lotus Sametime Stack Overflow (CVE-2008-2499):
IBM Lotus Sametime contains a programming error that may allow a remote attacker to cause a stack overflow and subsequently execute code on a vulnerable system. The problem occurs when the application processes a specially crafted URL.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 and SID 13902.

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 15, 2008



VRT Rules 2008-07-11

Sourcefire VRT Rules Update

Date: 2008-07-11

Synopsis:

This release contains a fix for a problem that caused the rule for MS08-037 to generate false positive events. This release also contains multiple rules in the spyware-put and backdoor categories to provide coverage for emerging spyware and backdoor threats.

Details:

Microsoft Security Advisory (MS08-037):
Microsoft Windows DNS client and server are prone to a DNS spoofing vulnerability that may allow an attacker to redirect network traffic.

A rule to detect attacks targeting this vulnerability was previously released. A modified version that reduces false positive events is included in this release and is identified with GID 3 and SID 13887.

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the spyware-put and backdoor 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 11, 2008



VRT Rules 2008-07-09

Sourcefire VRT Rules Update

Date: 2008-07-09

Synopsis:

This release contains a fix for a problem that prevented the rules for MS08-040 from being loaded correctly.

Details:

Microsoft Security Advisory (MS08-040):
Microsoft SQL Server contains multiple vulnerabilities that may allow remote attackers to escalate their level of privilege on affected systems.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 13888 through 13892.

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 09, 2008



VRT Tool 2008-07-09

Sourcefire VRT Tool Tool Update

Date: 2008-07-09

Synopsis:

The OfficeCat tool has been updated to include detection for a vulnerability in Microsoft Word.

Details:

The OfficeCat tool has been updated to include detection for a vulnerability in Microsoft Word. This vulnerability is identified with the CVE reference 2008-2244.

Please send feature requests and bug reports via email to vrt@sourcefire.com. Post cards and beer can be sent to the Sourcefire VRT, 9780 Patuxent Woods Drive, Columbia, MD 21045, USA.

Additionally, malware samples would be most appreciated, please contact vrt@sourcefire.com if you have some to share.

The OfficeCat tool is able to process Word, Excel, Publisher, Project and PowerPoint files and will return the appropriate reference information should possible exploit conditions be present in the document.

OfficeCat Tool Download:

Download zip archive here.

Usage Instructions:

  1. Unzip the archive
  2. Open a command shell
  3. Execute the tool executable with a document name for checking

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.

About Sourcefire

Sourcefire, Inc., the world leader in intrusion prevention, is transforming the way organizations manage and minimize network security risks with its 3D Approach - Discover, Determine, Defend - to securing real networks in real-time. For more information about Sourcefire, please visit www.sourcefire.com.

Posted by on Jul 09, 2008



VRT Rules 2008-07-08

Sourcefire VRT Rules Update

Date: 2008-07-08

Synopsis:

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

Details:

Microsoft Security Advisory (MS08-037):
Microsoft Windows DNS client and server are prone to a DNS spoofing vulnerability that may allow an attacker to redirect network traffic.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 and SID 13887. In addition, a previously released rule will detect attacks targeting this vulnerability and is identified with GID 3 and SID 13667.

Microsoft Security Advisory (MS08-038):
Microsoft Windows Explorer does not correctly parse search files when saving. Explorer may exit and restart in an exploitable manner, allowing a remote attacker to execute code on an affected system in the context of the current user.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 13893 and 13911.

Microsoft Security Advisory (MS08-039):
Microsoft Outlook Web Access for Exchange Server is vulnerable to a cross site scripting attack that may allow remote attackers to escalate their level of privilege on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 13894 and 13895.

Microsoft Security Advisory (MS08-040):
Microsoft SQL Server contains multiple vulnerabilities that may allow an attacker to escalate their level of privilege on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 13888 through 13892.

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 08, 2008



VRT Rules 2008-07-01

Sourcefire VRT Rules Update

Date: 2008-07-01

Synopsis:

The Sourcefire VRT has added multiple rules in the spyware-put and backdoor categories to provide coverage for emerging spyware and backdoor threats.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the spyware-put and backdoor 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, 2008