firewalld.py in firewalld before 0.4.3.3 allows local users to bypass authentication and modify firewall configurations via the (1) addPassthrough, (2) removePassthrough, (3) addEntry, (4) removeEntry, or (5) setEntries D-Bus API method.
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "0.4.0-1ubuntu0.1", "binary_name": "firewall-applet" }, { "binary_version": "0.4.0-1ubuntu0.1", "binary_name": "firewall-config" }, { "binary_version": "0.4.0-1ubuntu0.1", "binary_name": "firewalld" } ] }