GEN:SID 1:2208
Message WEB-CGI fom.cgi access
Summary This event is generated when an attempt is made to access fom.cgi on an internal web server. This may indicate an attempt to exploit a cross-site scripting vulnerability in Faq-O-Matic.
Impact Arbitrary code execution, possible session hijack.
Detailed Information Faq-O-Matic is a CGI-based system that automates FAQ maintenance on a web server. Versions 2.712 and lower contain a cross-site scripting vulnerability where an attacker can craft a URL with malicious code in the "cmd" argument. If a legitimate user activates the URL, malicious code may be executed on the client computer with the security context of the web server.
Affected Systems Systems running or accessing Faq-O-Matic version 2.712 or lower.
Attack Scenarios An attacker crafts a URL that, when activated by a legitimate user, obtains the session cookie. This can allow the attacker to pose as the user for the duration of the session.
Ease of Attack Simple. A proof of concept exists.
Corrective Action Upgrade to Faq-O-Matic version 2.713 or higher. Upgrades are available at http://faqomatic.sourceforge.net.
Additional References Bugtraq
http://www.securityfocus.com/bid/4023
Rule References bugtraq: 4579
cve: 2002-0230
nessus: 11748