Cisco UCS GNU Bash Environment Variable Command Injection Vulnerability (Shellshock)

On September 24, 2014, a vulnerability in the Bash shell was publicly announced. The vulnerability is related to the way in which shell functions are passed though environment variables. The vulnerability may allow an attacker to inject commands into a Bash shell, depending on how the shell is invoked. The Bash shell may be invoked by a number of processes including, but not limited to, telnet, SSH, DHCP, and scripts hosted on web server

GNU bash contains a flaw that is triggered when evaluating environment variables passed from another environment. After processing a function definition, bash continues to process trailing strings.

Try to execute the `id' command by sending a crafted HTTP GET request and check the response.

See vendor advisory for a solution