Xerox Security Bulletin XRX14-008
Bash Shellshock Command Line Interpreter Vulnerability
A vulnerability has been discovered in the Bash command shell that can allow attackers to remotely execute commands on a target system. Even systems that don’t allow remote command shell connections may still use Bash to execute commands in the Apache web server and other network-facing applications. Unix and Unix-derived systems like Linux and Mac OS X are vulnerable to these attacks since they use Bash as the default command shell.
A Bash Shellshock document addressing this vulnerability has been posted to the Xerox Security Site.
NOTE: Review the bulletin for a more complete list of devices.
The Xerox devices ColorQube® 9201/9202/9203, ColorQube® 9301/9302/9303, WorkCentre® 232/238/245/255/265/275, WorkCentre® 5030/5050, WorkCentre® 5135/5150, WorkCentre® 5632/5638/5645/5655/5665/5675/5687, WorkCentre® 5735/5740/5745/5755/5765/5775/5790, WorkCentre® 6400, WorkCentre® 7525/7530/7535/7545/7556, WorkCentre® 7655/7665/7675, WorkCentre® 7755/7765/7775, WorkCentre® Bookmark 40/55, WorkCentre Pro® 232/238/245/255/265/275 were shipped with certain protocols enabled that, if properly exploited, could be used to gain
unauthorized access to the system. These particular protocols should not have been present in the production configuration and need to be removed from that configuration to minimize the possibility of unauthorized system access.
A software solution (patch P49) is provided for the products listed. This solution will remove from the production configuration the unwanted protocols in question so they can’t be exploited to gain unauthorized access to the system.
This solution is designed to be installed by the customer. The software solution is compressed into a 3 KB zip file and can be accessed via the link below or via the link following this bulletin announcement on the Xerox Security Site.
Software available through this link:
NOTE: We are re-issuing this bulletin due to a spelling error of the name of one of the researchers. No technical content in the bulletin has changed.
Vulnerabilities exist that, if exploited, could allow remote attackers to insert arbitrary code into the device. This could occur with a specifically crafted Postscript or firmware job submitted to the device. If successful, an attacker could make unauthorized changes to the system configuration; however, customer and user passwords are not exposed.
As part of Xerox’s on-going efforts to protect customers, the ability to accept these specially crafted jobs can be disabled for the affected products listed in the bulletin. Links for the software needed are contained inside the bulletin.