Single-message denial-of-service attacks against voice-over-internet protocol terminals Online publication date: Tue, 17-Mar-2009
by Jan Seedorf, Kristian Beckers, Felipe Huici
International Journal of Electronic Security and Digital Forensics (IJESDF), Vol. 2, No. 1, 2009
Abstract: The session initiation protocol (SIP) is widely used for signalling in multimedia communications. However, many SIP implementations are still in their infancy and vulnerable to malicious messages. We investigate flaws in the SIP implementations of eight phones, showing that the deficient verification of SIP dialogs further aggravates the problem by making it easier for attacks to succeed. Our results show that the majority of the phones we tested are susceptible to these attacks.
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