VRT Advisories
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Community 2006-09-05
Sourcefire Community Rule Update
Date: 2006-09-05
This message is to announce the availability of an update for the Sourcefire community rule set, which can be downloaded free of cost or registration from http://www.snort.org/pub-bin/downloads.cgi.
New rules in this release are identified as SIDs 100000874-100000891. These rules cover detection of TOR and Google Talk traffic, which may be policy violations in some environments cross-site scripting attempts against the Roller Weblog system a buffer overflow attempt against ImageMagick remote file inclusion attacks against PHP Live Helper and Inlink SQL injection against SimpleBlog and other attacks against the pHNews, Proxima, pmwiki, tikiwiki, yappa-ng, and Webmin/Usermin systems.
Sourcefire would like to thank the following submitters for their contributions:
* Dan Ramaswami for SIDs 100000874-100000875 * Will Young for 100000876-100000877 * p3rlhax@gmail.com for SIDs 100000878-100000880
Community Rule Pack Update Summary:
For a complete list of new and modified rules use this link.
To submit rules to the Community rule set use this link.
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 Sep 05, 2006
VRT Rules 2006-09-01
Sourcefire VRT Update
Date: 2006-09-01
Synopsis:
The Sourcefire VRT has continued research into vulnerabilities affecting Microsoft Internet Explorer and has also added multiple new rules in the spyware-put category. The VRT has also improved the performance of multiple rules and has improved reference information for multiple rules.
Details:
Multiple vulnerabilities exist in the way that Microsoft Internet Explorer handles ActiveX controls. It may be possible for an attacker to execute code of their choosing on a system using Internet Explorer.
Rules to detect attacks against these vulnerabilities are included in this rule pack and are identified as sids 7862 through 8058.
As a result of continuing research in the field of Spyware and potentially unwanted technology, the Sourcefire VRT has added multiple rules to the Spyware and Backdoor rule sets.
Each rule is also accompanied by detailed documentation for each Trojan, Spyware and potentially unwanted software to assist in determining the likelihood of infection and has relevant links to information regarding their removal.
These rules are identified as sids 7794 through 7857.
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 Sep 01, 2006
VRT Rules 2006-08-22
Sourcefire VRT Update
Date: 2006-08-22
Synopsis:
The Sourcefire VRT has added multiple rules to detect the use of Spyware and potentially unwanted technology on a network.
Details:
As a result of continuing research in the field of Spyware and potentially unwanted technology, the Sourcefire VRT has added multiple rules to the Spyware and Backdoor rule sets.
Each rule is also accompanied by detailed documentation for each Trojan, Spyware and potentially unwanted software to assist in determining the likelihood of infection and has relevant links to information regarding their removal.
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 Aug 22, 2006
VRT Rules 2006-08-11
Sourcefire VRT Update
Date: 2006-08-11
Synopsis:
The Sourcefire VRT has continued research into the recently announced vulnerabilities in the Microsoft Windows operating system and has modified rules to improve performance.
Details:
Microsoft Security Bulletin MS06-040 A buffer overflow condition in the Microsoft Windows Server Service may allow a remote attacker to execute code of their choosing on a target system. The overflow condition can be triggered by malformed requests to the service accessing certain functions.
Rules to detect attacks against these vulnerabilities are included in this rule pack and are identified as sids 7209 through 7304.
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 Aug 11, 2006
VRT Rules 2006-08-09
Sourcefire VRT Update
Date: 2006-08-09
Synopsis:
The Sourcefire VRT has added multiple rules to detect attempts to exploit vulnerabilities in the Microsoft Windows operating system.
Details:
Microsoft Security Bulletin MS06-040 A buffer overflow condition in the Microsoft Windows Server Service may allow a remote attacker to execute code of their choosing on a target system. The overflow condition can be triggered by malformed requests to the service accessing certain functions.
Rules to detect attacks against these vulnerabilities are included in this rule pack and are identified as sids 7209 through 7304.
Microsoft Security Bulletin MS06-042 Multiple vulnerabilities exist in the way that Microsoft Internet Explorer handles ActiveX controls. It may be possible for an attacker to execute code of their choosing on a system using Internet Explorer.
Rules to detect attacks against these vulnerabilities are included in this rule pack and are identified as sids 7425 through 7501.
Microsoft Security Bulletin MS06-043 Microsoft Internet Explorer contains a programming error in the way that it processes MIME HTML links (mhtml). This error may allow an attacker to overflow a fixed length buffer and execute code of their choosing on an affected host.
Rules to detect attacks against this vulnerability were released on 13 June 2006 and are identified as sids 6509 and 6510.
Microsoft Security Bulletin MS06-044 Microsoft Management Console is prone to a cross site scripting attack that may allow an attacker to execute code of their choosing on a system and gain unauthorized administrative access to an affected host.
Rules to detect attacks against these vulnerabilities are included in this rule pack and are identified as sids 7422 through 7424.
Microsoft Security Bulletin MS06-046 Multiple vulnerabilities exist in the way that Microsoft Internet Explorer handles ActiveX controls. It may be possible for an attacker to execute code of their choosing on a system using Internet Explorer.
Rules to detect attacks against these vulnerabilities are included in this rule pack and are identified as sids 7439 and 7440. In addition, sid 7004 released on 6 July 2006 also pertains to this issue.
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 Aug 09, 2006
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