CVE-2011-0453: F-Secure Internet Gatekeeper for Linux 3.x before 3.03 does not require authentication for reading access l...

Security readout for executives and security teams

This flaw lets someone reach the F-Secure Internet Gatekeeper for Linux admin UI port and read access logs without authentication. Those logs may expose sensitive operational information. Business risk depends mainly on whether the admin UI port is reachable by untrusted networks. Exposure is limited to environments still running F-Secure Internet Gatekeeper for Linux 3.x before 3.03, especially where the admin UI port is reachable from the internet or broad internal networks. Prioritize if legacy F-Secure Internet Gatekeeper deployments still exist or if the admin UI is broadly reachable. For most modern environments, urgency is likely low unless old infrastructure remains in service. Mitigation focus: Upgrade affected F-Secure Internet Gatekeeper for Linux 3.x systems to 3.03 or later.; Restrict the admin UI port to trusted administrative networks only.; Block external access to the admin UI port at firewalls or security groups..

Prepared

Jun 27, 2026, 18:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.