-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ZDI-12-201 : Microsoft Office Word PAPX Section Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-201 December 21, 2012 - -- CVE ID: CVE-2012-0182 - -- CVSS: 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P - -- Affected Vendors: Microsoft - -- Affected Products: Microsoft Office Word - -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 11933. 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 Microsoft Office Word. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within how the application parses a PAPX FKP sections. When parsing a PAPX FKP section, the application will store a calculation. However, when repairing a damaged document, the application will explicitly trust this calculation in a loop that is used to index into an array of objects. This will allow for an out-of-bounds access of an object which can lead to code execution under the context of the application. - -- Vendor Response: Microsoft has issued an update to correct this vulnerability. More details can be found at: http://technet.microsoft.com/en-us/security/bulletin/ms12-064 - -- Disclosure Timeline: 2011-05-25 - Vulnerability reported to vendor 2012-12-21 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by: * Anonymous - -- 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 -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 10.2.0 (Build 1950) Charset: utf-8 wsBVAwUBUNRa+VVtgMGTo1scAQLlWAf+Jjl7W056kyGU3AGbmPhW1+dd3b0Skh3Q EHGGJtrR4sGu5g2GaluVqSd7JZA0zbTzZhKgj4IuC8xfThtAfeU/5EuF7eX7LEXz vz92fQDx9ulv41tFLw81nTR9yk63Baq93CT6FwszPF5Edr9jrVyw/havhU5OgoFp vsknQnmDyIyXXkYN0iRWEKhDmopssY1Mnmj1ZvrKtYc8lRUd7p9vD8PQ8P6in9pS 0IoENc3SoKb4CDbAUY1PVjbeAF0+3sHjG95DNoycmFsRc8xvw1eJwW9vx5EvRAwU JsUTdLb/LK81dB+PNoov3feYNOUAwaLHW5vQX6ybOS02MHEfyMozCg== =ooOU -----END PGP SIGNATURE-----