Hunting For Shellshock Using Nessus

The best way to test for the Shellshock vulnerability is to do a credentialed local check against the Unix/Linux distribution. Nessus contains a number of plugins that make sure the operating system is patched. Nessus also has a plugin that performs a local test by invoking Bash, which covers just about any Unix/Linux platform available.

Hack Like a Pro: How to Scan for Vulnerabilities with Nessus « Null Byte :: WonderHowTo

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How To Use Nessus To Scan A Network For Vulnerabilities

Hack Like a Pro: How to Scan for Vulnerabilities with Nessus « Null Byte :: WonderHowTo