Today I will give you information about Firewall devices and talk about the weaknesses of these devices.
Firewall This system controls the data exchange in the network traffic with the help of a set of pre-set rules. It blocks transactions that cause non-compliance with the rules. Firewalls are located at the doors that open to the internet, which is specified as insecure from the local network, which we generally count as safe.
What are Firewall Devices
Firewall Devices, these devices are physical products combined with physical hardware products needed by firewall software. Each device has its own feature. Let's examine these features. They are produced for 4 main purposes such as packet filtering, Stateful packet filtering, User authentication, Client application authentication.
Firewall Types, there are many sub-branches of this process. But I would like to tell you about one of the simplest, Packet filtering.
Packet filtering firewall allows you to control the ingress and egress movements on the network. Apart from that, it establishes a bridge between your network and the internet and monitors the movements passing through the bridge. The operating speed of the server does not affect, as it is not installed on the operating system or the server itself. Apart from that, there are a few simpler types of firewalls, such as Application gateway firewall, Circuit level gateway firewall.
General Weaknesses in Firewall
These firewalls are very important for the systems we install. Because the biggest obstacle in front of an attacker when trying to log in to the system is our firewalls. Let's take a look at these vulnerabilities.
Bad Password Preference, as you know passwords are very difficult to remember. So instead of remembering a password like U35'wdx?_'^d, we would more easily remember a password like 34TheBEs45TGHO4ST3. For this reason, simple passwords are more attractive to us. If you don't put a sufficiently secure password on an important server, your system becomes a clear target for attackers.
Outdated Firewall Software, this vulnerability usually occurs when you do not make updates to your firewall. When the company that provided you with this firewall brings an update, it probably means that they have closed a software vulnerability in the firewall. That's why we have to closely monitor the updates coming to our firewalls.
These are the vulnerabilities that I am talking about are quite basic and can be easily corrected by even the least skilled person.
Have a nice day