F-Secure Internet Gatekeeper for Linux 3.x before 3.03 does not require authentication for reading access logs, which allows remote attackers to obtain potentially sensitive information via a TCP session on the admin UI port.
http://www.vupen.com/english/advisories/2011/0393
http://www.f-secure.com/en_EMEA/support/security-advisory/fsc-2011-1.html
http://secunia.com/advisories/43326