ZDI-07-019: BMC Patrol PerformAgent bgs_sdservice Memory Corruption Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-07-019.html April 18, 2007 -- CVE ID: CVE-2007-2136 -- Affected Vendor: BMC -- Affected Products: Patrol -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since April 13, 2007 by Digital Vaccine protection filter ID 5287. For further product information on the TippingPoint IPS: http://www.tippingpoint.com -- Vulnerability Details: This vulnerability allows attackers to execute arbitrary code on vulnerable installations of BMC Patrol. User interaction is not required to exploit this vulnerability. The specific flaw exists due to improper parsing of XDR data sent to the bgs_sdservice.exe process listening by default on TCP port 10128. An attacker can influence a parameter to a memory copy operation and cause corruption of the stack and including SEH pointers. This can be leveraged to execute arbitrary code. -- Vendor Response: BMC has provided the following statement: "[This issue] has been addressed, and a patch has been made available to our customers. A flash bulletin has been created describing the patch and will be sent to all affected customers in the next few days. BMC has a formal customer support mechanism in place to provide solutions to security issues brought to us by those who have legally licensed our software. In cases where security issues are brought to my attention by individuals/vendors who do not have legal access to our products, we will investigate their merit; however the issues will be addressed at our own discretion and according to our understanding of their severity. Finally, please note that in the future, I will only communicate resolutions and workarounds to licensed customers who are using our software legally. For a more meaningful dialogue around these issues and to be notified of any available patches, I urge all licensed customers to use BMC's support mechanism." -- Disclosure Timeline: 2007.03.05 - Vulnerability reported to vendor 2007.04.13 - Digital Vaccine released to TippingPoint customers 2007.04.18 - Public release of advisory -- Credit: This vulnerability was discovered by an anonymous researcher. -- About the Zero Day Initiative (ZDI): Established by TippingPoint, a division of 3Com, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. 3Com does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, 3Com provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, 3Com provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product.