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Zero Day Initiative Advisory 12-145

Zero Day Initiative Advisory 12-145
Posted Aug 23, 2012
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 12-145 - 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.

tags | advisory, remote, web, arbitrary, tcp, vulnerability
advisories | CVE-2012-0289
SHA-256 | f61f4ce29b8d52c4a9c1b37082ef4cd64b59d5ec479c79388cbea56bd8342bed

Zero Day Initiative Advisory 12-145

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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

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