[CVE-2015-0779]: Novell ZenWorks Configuration Management remote code execution

From: Pedro Ribeiro <pedrib@gmail.com>
To: fulldisclosure@seclists.org <fulldisclosure@seclists.org>,bugtraq <bugtraq@securityfocus.com>
Subject: [CVE-2015-0779]: Novell ZenWorks Configuration Management remote code execution


I've found a reported an unrestricted file upload vulnerability in
Novell ZenWorks Configuration Management which can be abused to
achieve remote code execution.

The full advisory text is below, and can also be obtained from my repo
[1]. A Metasploit module has been submitted and should hopefully be
accepted soon [2].


>> Remote code execution in Novell ZENworks Configuration Management 11.3.1
>> Discovered by Pedro Ribeiro (pedrib@gmail.com), Agile Information Security
Disclosure: 07/04/2015 / Last updated: 07/04/2015

>> Background on the affected product:
"Automate and accelerate your Windows 7 migration
Microsoft estimates that it can take more than 20 hours to migrate a
single machine to Windows 7. Novell ZENworks Configuration Management
is ready to dramatically accelerate and automate every aspect of your
Windows 7 migration efforts.

Boost user productivity
Use Novell ZENworks Configuration Management to make sure users always
have access to the resources they need regardless of where they work
or what devices they use.

Eliminate IT effort
Automatically enforce policies and dynamically manage resources with
identity-based management of users as well as devices.

Expand your freedom to choose
Manage the lifecycles of all your current and future assets, with full
support for Windows and Linux systems, Novell eDirectory, Active
Directory, and more.

Simplify deployment with virtual appliances
Slash deployment times with a convenient virtual appliance deployment option.

Enjoy a truly unified solution
Centralize the management of all your devices into a single, unified
and easy-to-use web-based ZENworks console\u20ac\u201dcalled ZENworks Control

This vulnerability is present in ZENworks Configuration Management
(ZCM) which is part of the ZENworks Suite.
A blast from the past? This is a similar vulnerability to ZDI-10-078 /
OSVDB-63412, but it abuses a different parameter of the same servlet.
However this time Novell:
- Did not bother issuing a security advisory to their customers.
- Did not credit me even though I did responsible disclosure.
- Refused to provide a CVE number for months.
- Did not update their ZENworks Suite Trial software with the fix (you
can download it now from their site, install and test the PoC /
Metasploit module).
- Does not list the fix in the ZCM 11.3.2 update information

>> Technical details:
Vulnerability: Remote code execution via file upload and directory traversal
Constraints: none; no authentication or any other information needed
Affected versions: ZENworks Configuration Management 11.3.1 and below

POST /zenworks/UploadServlet?uid=../../../opt/novell/zenworks/share/tomcat/webapps/&filename=payload.war
<WAR file payload in the body>

The WAR file will be automatically deployed to the server (on certain
Windows and Linux installations the path can be "../webapps/"). A
Metasploit module that exploits this vulnerability has been released.

>> Fix:
Upgrade to version ZENworks Configuration Management 11.3.2.

[1]: https://github.com/pedrib/PoC/blob/master/generic/zenworks_zcm_rce.txt
[2]: https://github.com/rapid7/metasploit-framework/pull/5096

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