ZDI-11-236: EMC Documentum eRoom Indexing Server OpenText HummingBird Connector Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-11-236 July 18, 2011 -- CVE ID: CVE-2011-1741 -- CVSS: 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C) -- Affected Vendors: EMC -- Affected Products: EMC Documentum eRoom -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 11443. For further product information on the TippingPoint IPS, visit: http://www.tippingpoint.com -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of EMC Documentum eRoom Indexing Server. Authentication is not required to exploit this vulnerability. The specific flaw exists within the bundled implementation of OpenText's HummingBird Connector. When parsing a particular packet received from a TCP connection, the application will attempt to copy part of the packet's contents into a buffer located on the stack. Due to not completely accommodating for the size of the data in the packet, the application will overwrite variables positioned after the buffer. This can lead to code execution under the context of the server. -- Vendor Response: EMC has issued an update to correct this vulnerability. More details can be found at: http://www.securityfocus.com/archive/1/518897/30/0/threaded -- Disclosure Timeline: 2011-01-21 - Vulnerability reported to vendor 2011-07-18 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Stephen Fewer of Harmony Security (www.harmonysecurity.com) -- About the Zero Day Initiative (ZDI): Established by TippingPoint, 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. TippingPoint does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, TippingPoint 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, TippingPoint provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. Our vulnerability disclosure policy is available online at: http://www.zerodayinitiative.com/advisories/disclosure_policy/ Follow the ZDI on Twitter: http://twitter.com/thezdi