The remote host is missing an update to bcfg2 announced via advisory DSA 2302-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202302-1

It has been discovered that the bcfg2 server, a configuration management server for bcfg2 clients, is not properly sanitizing input from bcfg2 clients before passing it to various shell commands. This enables an attacker in control of a bcfg2 client to execute arbitrary commands on the server with root privileges. For the oldstable distribution (lenny), this problem has been fixed in version 0.9.5.7-1.1+lenny1. For the stable distribution (squeeze), this problem has been fixed in version 1.0.1-3+squeeze1 For the testing distribution (wheezy), this problem has been fixed in version 1.1.2-2. For the unstable distribution (sid), this problem has been fixed in version 1.1.2-2. We recommend that you upgrade your bcfg2 packages.