Symantec Endpoint Protection Remote Code Execution Vulnerability

2012.08.22
Risk: High
Local: No
Remote: Yes
CWE: CWE-119


CVSS Base Score: 7.2/10
Impact Subscore: 10/10
Exploitability Subscore: 3.9/10
Exploit range: Local
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

ZDI-12-145 : Symantec Endpoint Protection SemSvc.exe AgentServlet Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-145 August 22, 2012 - -- CVE ID: CVE-2012-0289 - -- CVSS: 10, AV:N/AC:L/Au:N/C:C/I:C/A:C - -- Affected Vendors: Symantec - -- Affected Products: Symantec Endpoint Protection - -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Symantec Endpoint Protection. Authentication is not required to exploit this vulnerability. The specific flaw exists within SemSvc.exe which listens by default on TCP port 8443 (https). The SemSvc service exposes a servlet called 'AgentServlet" which allows remote users to activate certain tasks without prior authentication. In doing so, it is vulnerable to directory traversal attacks and arbitrary file deletion. When certain files are deleted, the eval() method will allow for executing user supplied commands. An attacker can leverage these vulnerabilities to execute code under the context of the SYSTEM. - -- 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=20120522_01 - -- Disclosure Timeline: 2011-10-28 - Vulnerability reported to vendor 2012-08-22 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by: * Andrea Micalizzi aka rgod - -- 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

References:

http://www.zerodayinitiative.com/advisories/ZDI-12-145


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