With its versatile technology, an intrusion detection system can detect attacks that a conventional firewall cannot detect. It analyzes the data packets up to the highest layer of the OSI model and supervises for this the applications executed individually. Anomaly detection systems can also detect new flexible attack patterns through their procedure, thereby increasing network security. However, do not believe that IDS software can replace the firewall, only a combination of the two security components provides optimal protection.
Since intrusion detection systems are active components of a network, they can also be a potential target for attack , especially if the intruder is aware of them. Due to their vulnerability to DOS attacks, that is to say targeted overload, IDS software can be extinguished in a very short time. In addition, the hacker can also take advantage of the automatic notification function of intrusion detection systems in order to launch DOS attacks from the IDS. In particular, the detection of anomalies is a major weakness in this case if the configuration is incorrect. Indeed, if the settings are too sensitive, the number of alert messages is then relatively high, and this even in the absence of unauthorized access.
In any case, you need to assess the costs, efforts and benefits of these security systems because you need not only the IDS software but also the appropriate hardware environment. And even if there are powerful open source solutions like that based on a Snort network , or based on a host like Samhain or the Suricata hybrid system , it is necessary to correctly install, configure and maintain.
Read More: intrusion detection and prevention systems
Since intrusion detection systems are active components of a network, they can also be a potential target for attack , especially if the intruder is aware of them. Due to their vulnerability to DOS attacks, that is to say targeted overload, IDS software can be extinguished in a very short time. In addition, the hacker can also take advantage of the automatic notification function of intrusion detection systems in order to launch DOS attacks from the IDS. In particular, the detection of anomalies is a major weakness in this case if the configuration is incorrect. Indeed, if the settings are too sensitive, the number of alert messages is then relatively high, and this even in the absence of unauthorized access.
In any case, you need to assess the costs, efforts and benefits of these security systems because you need not only the IDS software but also the appropriate hardware environment. And even if there are powerful open source solutions like that based on a Snort network , or based on a host like Samhain or the Suricata hybrid system , it is necessary to correctly install, configure and maintain.
Read More: intrusion detection and prevention systems
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