TippingPoint Zero Day Initiative

Novell ZENworks Configuration Management UploadServlet Remote Code Execution Vulnerability

ZDI-10-078: April 23rd, 2010

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9715. For further product information on the TippingPoint IPS:

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:

Disclosure Timeline

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


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