Apple has released updates to insulate Mac OS X systems from the dangerous “Shellshock” bug, a pervasive vulnerability that is already being exploited in active attacks.
After installing the updates, Mac users can check to see whether the flaw has been truly fixed by taking the following steps:
* Open Terminal, which you can find in the Applications folder (under the Utilities subfolder on Mavericks) or via Spotlight search.
* Execute this command:
bash –version [author’s note: my WordPress install is combining these two dashes; it should read the word “bash” followed by a space, then two dashes, and the word “version”].
* The version after applying this update will be:
OS X Mavericks: GNU bash, version 3.2.53(1)-release (x86_64-apple-darwin13)
OS X Mountain Lion: GNU bash, version 3.2.53(1)-release (x86_64-apple-darwin12)
OS X Lion: GNU bash, version 3.2.53(1)-release (x86_64-apple-darwin11)