ZDI-07-022: CA BrightStor ArcServe Media Server Multiple Buffer Overflow Vulnerabilities http://www.zerodayinitiative.com/advisories/ZDI-07-022.html April 24, 2007 -- CVE ID: CVE-2007-2139 -- Affected Vendor: Computer Associates -- Affected Products: BrightStor ARCserve Backup r11.5 SP2 BrightStor ARCserve Backup r11.5 BrightStor ARCserve Backup r11.1 BrightStor ARCserve Backup r11 for Windows BrightStor Enterprise Backup r10.5 BrightStor ARCserve Backup v9.01 CA Server Protection Suite r2 CA Business Protection Suite r2 -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since April 19, 2007 by Digital Vaccine protection filter ID 5211. 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 Computer Associates BrightStor ARCserve Media Server. User interaction is not required to exploit this vulnerability. The specific flaw exists in the SUN RPC service which binds to a randomly chosen high TCP port. The target port can be obtained by querying the port mapper. Multiple stack-based buffer overflows exist during the parsing of malformed RPC strings. Exploitation of these overflows can result in arbitrary code execution. -- Vendor Response: Computer Associates has issued an update to correct this vulnerability. More details can be found at: http://supportconnectw.ca.com/public/storage/infodocs/babmedser-secnotic e.asp -- Disclosure Timeline: 2007.03.08 - Vulnerability reported to vendor 2007.04.19 - Digital Vaccine released to TippingPoint customers 2007.04.24 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by Tenable Network Security. -- 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.