ZDI-06-037: America Online ICQ ActiveX Control Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-06-037.html November 6, 2006 -- CVE ID: CVE-2006-5650 -- Affected Vendor: America Online -- Affected Products: America Online ICQ 5.1 -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since October 31, 2006 by Digital Vaccine protection filter ID 4725. 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 AOL ICQ. User interaction is not required to exploit this vulnerability. The specific flaw exists in the DownloadAgent function of the ICQPhone.SipxPhoneManager ActiveX control with the following CLSID: 54BDE6EC-F42F-4500-AC46-905177444300 The vulnerable function takes a single URI argument of a file to download and execute under the context of the running user. A malicious ICQ avatar can be used as an exploitation vector, allowing attackers to exploit this vulnerability by simply messaging a target ICQ user. -- Vendor Response: AOL has issued an update to correct this vulnerability on 10/31/2006. The update is automatically applied once connected to the ICQ service. -- Disclosure Timeline: 2006.09.20 - Vulnerability reported to vendor 2006.10.31 - Digital Vaccine released to TippingPoint customers 2006.11.06 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by Peter Vreugdenhil. -- 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.