ZDI-07-001: QUALCOMM Eudora WorldMail Remote Management Heap Overflow http://www.zerodayinitiative.com/advisories/ZDI-07-001.html January 5, 2007 -- CVE ID: CVE-2006-6336 -- Affected Vendor: QUALCOMM -- Affected Products: Eudora WorldMail 3.1.x Mail Management Server -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since December 12, 2006 by Digital Vaccine protection filter ID 4689. 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 Eudora WorldMail. Authentication is not required to exploit this vulnerability. The specific flaw exists during the parsing of successive delimiters within the Mail Management Server, MAILMA.exe, listening on TCP port 106. Processing a maliciously crafted request can result in an exploitable heap corruption. -- Vendor Response: QUALCOMM will not be addressing this issue with a software patch and instead recommends that administrators block access to the affected port from untrusted sources at the network level. -- Disclosure Timeline: 2006.09.15 - Vulnerability reported to vendor 2006.12.12 - Digital Vaccine released to TippingPoint customers 2007.01.05 - Public release of advisory -- Credit: This vulnerability was discovered by Leon Juranic, INFIGO IS. -- 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.