ZDI-11-088: Cisco Security Agent Management st_upload Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-11-088 February 16, 2011 -- CVE ID: CVE-2011-0364 -- CVSS: 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C) -- Affected Vendors: Cisco -- Affected Products: Cisco Security Agent Management Console -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Cisco Security Agent Management Console. Authentication is not required to exploit this vulnerability. The flaw exists within the webagent.exe component which is handed requests by an Apache instance that listens by default on TCP port 443. When handling an st_upload request the process does not properly validate POST parameters used for a file creation. The contents of this newly created file are controllable via another POST variable. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the SYSTEM user. -- Vendor Response: Cisco has issued an update to correct this vulnerability. More details can be found at: http://www.cisco.com/warp/public/707/cisco-sa-20110216-csa.shtml -- Disclosure Timeline: 2010-09-23 - Vulnerability reported to vendor 2011-02-16 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Gerry Eisenhaur -- 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