GLSA-201701-70 : Firewalld: Improper authentication methods
Low Nessus Plugin ID 96856
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-201701-70 (Firewalld: Improper authentication methods)
A flaw in Firewalld allows any locally logged in user to tamper with or change firewall settings. This is due to how Firewalld handles authentication via polkit which is not properly applied to 5 particular functions to include: addPassthrough, removePassthrough, addEntry, removeEntry, and setEntries.
A local attacker could tamper or change firewall settings leading to the additional exposure of systems to include unauthorized remote access.
There is no known workaround at this time.
SolutionAll Firewalld users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-firewall/firewalld-0.4.3.3'