I was Shellshocked last week.
Shellshock - News, Features, and Slideshows
Australian Privacy Commissioner Timothy Pilgrim is urging government agencies and businesses to protect their IT systems against the Bourne Again Shell (Bash) vulnerability.
Shellshock/bash bug exploits can force compromised servers to act as bots and, depending on the types of privileges the servers have, attackers can make them do a lot worse. So corporate security pros should patch important affected machines as soon as possible.