It also filters traffic separately, whether it’s coming from your internal network of devices or the open internet, allowing you to set different rules and policies for each.
PfSense has many key features and capabilities, including: pfSense has recently become the favored alternative to the industry leader, Cisco. pfSense puts you in control of your networking, is regularly updated, and works to promptly patch security issues. In addition, pfSense is feature-rich, has a mature platform, is customizable, is flexible by design, and can be used on a small home router as well as run the entire network of a large corporation. It is operated through a user-friendly web interface, making administration easy even for users with limited networking knowledge. This is also valid for other attacks such as cross-site scripting (XSS) or SQL injection, not only for command execution.”Ĭheck IHTeam’s blog post for a technical description and proof-of-concept of the problem.PfSense is a free and open-source operating system for routers and firewalls, and is typically configured as DHCP server, DNS server, WiFi access point, VPN server, all running on the same hardware device. All user input should be carefully analyzed and sanitized before being passed to the application. The researcher explained: “To avoid these types of vulnerabilities, developers should take extra care while handling user input (not only via direct GET and POST requests but also via input that might be passed in request headers such as Cookies, Host, or User-Agent ).
Software updates are available from pfSense, and the plugin’s developer, pfBlockerNG-devel, is a secure version recommended.Īccording to an IHTeam researcher, other software developers could learn from the flaw’s characteristics. The researchers said, if the affected 2.x branch was removed entirely from the list of accessible plugins, the misunderstanding could be resolved quickly. The pfSense firewall’s distributor, Netgate, stated that the issue uncovered by the researchers was in the pfBlockerNG package but had previously been addressed in the pfBlockerNG-devel package, the version the package maintainer recommends everyone use.ĭevelopers continue shipping and enabling users to install between the 2.x and the 3.x branch. Shodan search for internet-facing pfSense instances
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