Cacti graph_image.php denial of service
| cacti-graphimage-dos (34747) |  Low Risk |
Description:
Cacti is vulnerable to a denial of service, caused by improper validation of user-supplied input by the graph_image.php script. By sending multiple requests containing a specially-crafted graph_start, graph_end, graph_width, or the graph_height parameter, a remote authenticated attacker could consume all available CPU resources.
Platforms Affected:
- Cacti, Cacti 0.8.6j
- MandrakeSoft, Mandrake Linux Corporate Server 4.0
- MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
Remedy:
Upgrade to the fixed version of cacti/graph_image.php, available from the SVN Repository. See References.
Consequences:
Denial of Service
References:
- Full-Disclosure Mailing List, Tue Jun 05 2007 - 18:32:34 CDT, Cacti Denial of Service at http://archives.neohapsis.com/archives/fulldisclosure/2007-06/0074.html.
- SourceForge.net, Cacti at http://sourceforge.net/projects/cacti/.
- SVN Repository, Diff of /branches/BRANCH_0_8_6/cacti/graph_image.php at http://svn.cacti.net/cgi-bin/viewcvs.cgi/branches/BRANCH_0_8_6/cacti/graph_image.php?rev=3956&r1=3898&r2=3956.
- CVE-2007-3112: Cacti 0.8.6i, and possibly other versions, allows remote authenticated users to cause a denial of service (CPU consumption) via a large value of the (1) graph_start or (2) graph_end parameter.
- CVE-2007-3113: Cacti 0.8.6i, and possibly other versions, allows remote authenticated users to cause a denial of service (CPU consumption) via a large value of the (1) graph_height or (2) graph_width parameter.
- MDKSA-2007:184: Updated cacti packages fix vulnerability
- SA25557: Cacti "graph_image.php" Denial of Service
Reported:
Jun 06, 2007
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