RTP-miner: a real-time security framework for RTP fuzzing attacks

Real-time Transport Protocol (RTP) is a widely adopted standard for transmission of multimedia traffic in Internet telephony (commonly known as VoIP). Therefore, it is a hot potential target for imposters who can launch different types of Denial of Service (DoS) attacks to disrupt communication; resulting in not only substantive revenue loss to VoIP operators but also undermining the reliability of VoIP infrastructure. The major contribution of this paper is an online framework – RTP-Miner – that detects RTP fuzzing attacks in realtime; as a result, it is not possible to deny access to legitimate users. RTP-Miner can detect both header and payload fuzzing attacks. Fuzzing in the header of RTP packets is detected by combining well known distance measures with a decision tree based classifier. In comparison, payload fuzzing is detected through a novel Markov state space model at the receiver. We evaluate RTP-Miner on a realworld RTP traffic dataset. The results show that RTP-Miner...

• Type: Conference
• Year: 2010
• Where: NOSSDAV
• Authors: M. Ali Akbar, Muddassar Farooq
• Keywords: Computer Networks, False Alarm Rate, Fuzzing, NOSSDAV 2010, Real-time Transport Protocol