Software Engineering Institute

The Novell ZENworks Asset Management web console is provided as a Java web application named rtrlet. Two HandleMaintenanceCalls, GetFile_Password and GetConfigInfo_Password have hard-coded credentials. GetFile_Password allows access to any file on the filesystem and GetConfigInfo_Password allows access to ZENworks Asset Management configuration parameters along with the back-end system's credentials.

A full technical analysis of the vulnerability is available on Rapid7's blog post entitled "New 0day Exploit: Novell ZENworks CVE-2012-4933 Vulnerability" and Metasploit exploit modules are publicly available.

A remote unauthenticated attacker may read any file accessible with SYSTEM privileges and retrieve configuration parameters from ZENworks Asset Management.

Apply an Update

Novell has released a patch to address this vulnerability. Follow the below steps to apply the patch on a ZAM 7.5 Server.

1. Stop the ZAM services from the service manager
2. Take a backup of the existing rtrlet.war found in your ZAM 7.5's Tomcat directory.
3. Delete the rtrlet directory under Tomcat5\webapps\
4. Replace the rtrlet.war Tomcat5\webapps\ with the one distributed with this patch.
5. Start the ZAM 7.5 services.

Restrict Access

Appropriate firewall rules should be put in place so only trusted users can access the web interface.