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Comment by passfree | Hacker News Reader

Or just run from terminal:

         env x='() { :;}; echo vulnerable' bash -c "echo this is a test"

This should be displayed:

      bash: warning: x: ignoring function definition attempt
      bash: error importing function definition for `x'
      this is a test

This test is for public sites. The vulnerability effects web apps too in a big way.

"Warning: This application requires Websecurify Browser Extension for Google Chrome."

NOPE

As a best practice, you should use it in a separate profile but this is the only way to benefit from this technology.