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Zero Day Initiative Advisory 10-078

Zero Day Initiative Advisory 10-078
Posted Apr 24, 2010
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 10-078 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell ZENworks. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ZENworks Server (zenserver.exe). This Tomcat server listens by default on TCP ports 80 and 443. The vulnerability exists in the UploadServlet. Using the UploadServlet an attacker can upload a malicious file outside of the TEMP directory on the server. By accessing this uploaded file remotely it is executed in the context of the zenserver.exe process. This can be exploited to gain arbitrary code execution in the context of the user running the ZENworks server.

tags | advisory, remote, arbitrary, tcp, code execution
SHA-256 | 11c9411dcfafccd770058445c9f215256689e44ba7381a574691d4d2382efd2c

Zero Day Initiative Advisory 10-078

Change Mirror Download
ZDI-10-078: Novell ZENworks Configuration Management UploadServlet Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-078
April 23, 2010

-- Affected Vendors:
Novell

-- Affected Products:
Novell Zenworks

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9715.
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 Novell ZENworks. Authentication is not
required to exploit this vulnerability.

The specific flaw exists within the ZENworks Server (zenserver.exe).
This Tomcat server listens by default on TCP ports 80 and 443. The
vulnerability exists in the UploadServlet. Using the UploadServlet an
attacker can upload a malicious file outside of the TEMP directory on
the server. By accessing this uploaded file remotely it is executed in
the context of the zenserver.exe process. This can be exploited to gain
arbitrary code execution in the context of the user running the ZENworks
server.

-- Vendor Response:
Novell has issued an update to correct this vulnerability. More
details can be found at:

http://www.novell.com/support/viewContent.do?externalId=7005573

-- Disclosure Timeline:
2010-02-09 - Vulnerability reported to vendor
2010-04-23 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
* Stephen Fewer of Harmony Security (www.harmonysecurity.com)

-- 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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