Pre-udate:
root@debian:~# env x='() { :;}; echo vulnerable' bash -c "echo this is a test"
vulnerable
this is a test
root@debian:~#
Post-update:
root@debian:~# env x='() { :;}; echo vulnerable' bash -c "echo this is a test"
bash: warning: x: ignoring function definition attempt
bash: error importing function definition for `x'
this is a test
Fuente > http://www.murga-linux.com/puppy/viewtopic.php?p=800655#800655
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