GLSA 201701-70: Firewalld: Improper authentication methods
| Severity: | normal |
| Title: | Firewalld: Improper authentication methods |
| Date: | 01/29/2017 |
| Bugs: | |
| ID: | 201701-70 |
Synopsis
A vulnerability in Firewalld allows firewall configurations to be modified by unauthenticated users.Background
Firewalld provides a dynamically managed firewall with support for network/firewall zones to define the trust level of network connections or interfaces.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| net-firewall/firewalld | < 0.4.3.3 | >= 0.4.3.3 | All supported architectures |
Description
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.
Impact
A local attacker could tamper or change firewall settings leading to the additional exposure of systems to include unauthorized remote access.
Workaround
There is no known workaround at this time.
Resolution
All Firewalld users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-firewall/firewalld-0.4.3.3"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.