26 Sep '14, 7am
Here's what you need to know about the Bash "Shell Shock"Vulnerability.
The most likely route of attack is through Web servers utilizing CGI (Common Gateway Interface), the widely-used system for generating dynamic Web content. An attacker can potentially use CGI to send a malformed environment variable to a vulnerable Web server. Because the server uses Bash to interpret the variable, it will also run any malicious command tacked-on to it.