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Cacti XSS fixes in 0.8.7g
From: Tomas Hoger <thoger () redhat com>
Date: Thu, 22 Jul 2010 11:05:15 +0200


Cacti 0.8.7g was released some days ago:

Release notes mention couple of security issue previously fixed in
(withdrawn) 0.8.7f, but adds new protections against couple of XSS

"XSS 4" from CVE-2009-4032 was not fixed previously:

Fixed in include/top_graph_header.php change in:

Search pattern in log file viewer was not filtered for bad characters,
or escaped before echoing pattern back to page:

Possible victims are administrative users with access to log viewer
page.  Fixed in r6025, which adds escaping to other search patterns
too, but others were filtered previously.

Multiple persistent XSS via various item names or descriptions.
Attacker needs to have certain administrative privileges, so this is
fairly lame issue.

Originally discovered for template names, where template XML import
provides additional vector (trusted admin tricked to import untrusted
template vs. untrusted admin).  HTML escaping added on various places
in r6037, r6038, r6041 and r6042.

Tomas Hoger / Red Hat Security Response Team

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