Directory traversal vulnerability in img.pl in Barracuda Spam Firewall running firmware 3.1.16 and 3.1.17 allows remote attackers to read arbitrary files via a .. (dot dot) in the f parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/22120
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-2849
http://www.securitytracker.com/alerts/2005/Sep/1014837.html
http://www.securityfocus.com/bid/14710
http://securiweb.net/wiki/Ressources/AvisDeSecurite/2005.1