ZDI-12-091 : Symantec Web Gateway upload_file Remote Code Execution Vulnerability


-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ZDI-12-091 : Symantec Web Gateway upload_file Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-091 June 8, 2012 - -- CVE ID: CVE-2012-0299 - -- CVSS: 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P - -- Affected Vendors: Symantec - -- Affected Products: Symantec Web Gateway - -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Symantec Web Gateway. Authentication is not required to exploit this vulnerability. The specific flaw exists because Symantec Web Gateway allows unauthenticated users to upload a file while preserving the file extension. This allows users to upload additional script files that can be used to execute remote code from user supplied commands under the context of the webserver. - -- Vendor Response: Symantec has issued an update to correct this vulnerability. More details can be found at: http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=se curity_advisory&pvid=security_advisory&year=2012&suid=20120517_00 - -- Disclosure Timeline: 2011-11-22 - Vulnerability reported to vendor 2012-06-08 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by: * Tenable Network Security - -- 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 wsBVAwUBT9JmIFVtgMGTo1scAQIcsggAiLXplifuJP03Yc8Z5FD6BofgxIpTW4pe A1bAHANbzqZUEOeK4+RO0/6xy7mN5urbMZiLRc/iW3GaCYkWBcUUZ1CyT//MsDZ7 vqkR/kWXENtCBUip76vICdAWWK87FvlZa6gZN/kAnj5RiGLZ1QCUddc9yBIApQ/B u87rKoIcrfccUsM0gwgy9qmbWS52I8hfOUMfXIJs5w+7k8mbIkDbnBR0gSh3bGe3 LMsOp2VxXEDx5Kc3/d53ldIASEQPbPAa4GyYkvrzGdSxACItij+4RDOaaszRrnZE QbPe7jqJKsxWW8wei+Y4MXIPzlV5QqpVA/NDeR74rF7JyPuLo6c1mA== =/0OU -----END PGP SIGNATURE-----