ZDI-08-074: Adobe Acrobat PDF Javascript getCosObj Memory Corruption Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-08-074 November 4, 2008 -- CVE ID: CVE-2008-4813 -- Affected Vendors: Adobe -- Affected Products: Adobe Acrobat -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 5941. For further product information on the TippingPoint IPS, visit: http://www.tippingpoint.com -- Vulnerability Details: This vulnerability allows remote attackers to execute code on vulnerable installations of Adobe Acrobat. User interaction is required in that a user must visit a malicious web site. The specific flaw exists when processing malicious javascript contained in a PDF document. When creating a Collab object and performing a specific sequence of actions on it, memory corruption occurs potentially resulting in remote code execution. If successfully exploited full control of the affected machine running under the credentials of the currently logged in user can be achieved. -- Vendor Response: Adobe has issued an update to correct this vulnerability. More details can be found at: http://www.adobe.com/support/security/bulletins/apsb08-19.html -- Disclosure Timeline: 2008-05-12 - Vulnerability reported to vendor 2008-11-04 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Peter Vreudegnhil -- 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/ CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is being sent by 3Com for the sole use of the intended recipient(s) and may contain confidential, proprietary and/or privileged information. Any unauthorized review, use, disclosure and/or distribution by any recipient is prohibited. If you are not the intended recipient, please delete and/or destroy all copies of this message regardless of form and any included attachments and notify 3Com immediately by contacting the sender via reply e-mail or forwarding to 3Com at postmaster@3com.com.