Detecting VoIP fuzzing attacks by using a honeypot system

Technological generation change have expanded the use of VoIP. In parallel to this expansion, exploiting the vulnerabilities of the VoIP systems have increased. Fuzzing test are widely used in the discovery of these vulnerabilities. In our study, we discuss the discovery of vulnerabilities of SIP based VoIP system with Fuzzing test and the exploitation of these vulnerabilities. Also, we describe the implementation of a honeypot system for monitoring illegal fuzzing activities in VoIP environments and share its results. The obtained results can be used to improve the defense mechanisms of VoIP related security products.