Hi, it has been a long time since my last post because of my new job and my final year project ("VoIP denegation of service attacks" for curious) but there is something I found during my tests with Freeswitch , Kamailio and Asterisk that I want to share. NOTE: Really, guys of Security By Default blog published us (my good friend Roi Mallo and me) two articles about how to develop modules for Metasploit framework, another two are coming. ;) During my project, among others, I developed a Metasploit module which can flood SIP protocol with common frames (INVITE, OPTIONS, REGISTER, BYE), I wrote it at Quobis (nice job ;) in order to use it for some private tests because actual software didn´t fit our needs, so we are going to probe how is the behavior of different GPL VoIP servers against this kind of attacks: - Asterisk: I think it needs no introduction, the famous softswitch/PBX software. - Freeswitch: It´s a newer soft...