Leif M. Wright simplestguest.cgi Remote Command Execution Vulnerability

A vulnerabiliy exists in Leif M. Wright's simplestguest.cgi, a script designed to coordinate guestbook submissions from website visitors.

An insecure call to the open() function leads to a failure to properly filter shell metacharacters from user supplied input. As a result, it is possible for an attacker to cause this script to execute arbitrary shell commands with the privileges of the webserver.


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