Xi'an's Og

Even though most people are now aware of the Shellshock security problem on the bash shell, here is a test to check whether your Unix system is at risk:

[sourcecode language=”bash” gutter=”false”]
env x='() { :;}; echo vulnerable’ bash -c ‘echo hello’
[/sourcecode]

if the prompt returns vulnerable, it means the system is vulnerable and needs to be upgraded with the proper security patch… For instance running

[sourcecode language=”bash” gutter=”false”]
sudo apt-get update && sudo apt-get install –only-upgrade bash
[/sourcecode]

for Debian/Ubuntu versions. Check Apple support page for Apple OS.

This entry was posted on October 3, 2014 at 2:18 pm and is filed under Linux with tags Linux, Shellshock, ubuntu, unix. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.