munin-cgi-graph in Munin before 2.0.6, when running as a CGI module under Apache, allows remote attackers to load new configurations and create files in arbitrary directories via the logdir command.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-3468
http://www.ubuntu.com/usn/USN-1622-1
http://www.openwall.com/lists/oss-security/2012/08/21/1