Bash Environment Variable Command Execution

Earlier today another exploit likely on the same scale as the Heartbleed exploit was released. The new bash exploit allowed a user to run code on the local machine which could allow an unauthorized person to gain access to a system.

To test if this exploit runs on your linux or Mac server, enter this into the terminal ‘env x='() { :;}; echo Your system is vulnerable’ bash -c “echo Test script”‘

More reading here: Bash Environment Variable Command Execution ≈ Packet Storm.