Tags › fuzzing
OpenSIPS Security Audit Report is fully disclosed and out there
Published on Mar 17, 2023 in sip security, sipvicious pro, sip security testing, security tools, opensips, kamailio, fuzzing, denial of service, research
It’s almost a year since the OpenSIPS project published a minimized version of our security audit report from 2022. Now, the full version has been published, with all the information intact on how to reproduce the vulnerabilities and extra details in an 80+ page report. The OpenSIPS security audit report can be found here. What is the OpenSIPS security audit? OpenSIPS is a SIP server that often has a critical security function within an IP communications system.…
DEMO - An overview of the VoIP and RTC offensive security toolset, SIPVicious PRO
Published on May 25, 2021 in sip security, sipvicious pro, sip security testing, fuzzing, denial of service, training, devops
We pushed out a video that introduces the basics of SIPVicious PRO by demonstrating some of the attack tools and showing the building blocks for automating security testing of VoIP and WebRTC applications and infrastructure. What follows is a transcript of the video. Introduction Hello, I’m Sandro Gauci from Enable Security. In this video, I’d like to show you what we have been working on, SIPVicious PRO! Let’s start by introducing the tools.…
TADSummit Asia 2021 talk about SIPVicious Pro and the Demo Server
Published on May 18, 2021 in sip security, sipvicious pro, sip security testing, demo server, sipvicious oss, fuzzing, denial of service, training, devops
TADSummit is a great event where people from different backgrounds that are somehow involved in communications, contribute in various ways. I, personally, always look forward to see what’s coming up in the next TADSummit event. At the moment, TADSummit Asia presentations are currently being released on a daily basis on the main site. And last week, the presentation that I prepared was published! In the previous TADSummit, I had presented about why we need to bring an offensive approach to RTC security.…
Bug discovery diaries: Abusing VoIPmonitor for Remote Code Execution
Published on Mar 16, 2021 in fuzzing, sip security, sip security testing, research, sipvicious pro, voip security, gasoline
Executive summary (TL;DR) We fuzzed VoIPmonitor by using SIPVicious PRO and got a crash in the software’s live sniffer feature when it is switched on. We identified the cause of the crash by looking at the source code, which was a classic buffer overflow. Then we realized that was fully exploitable since the binaries distributed do not have any memory corruption protection. So we wrote exploit code using ROP gadgets to get remote code execution by just sending a SIP packet.…
Bug discovery diaries: uncovering sngrep overflow issues with blackbox fuzzing
Published on Jan 5, 2021 in fuzzing, sip security, sipvicious pro, sip security testing, opensips
Executive summary (TL;DR) During OpenSIPIt, we crashed sngrep by mistake while briefly fuzzing OpenSIPS. Later on we setup a docker environment to reproduce the issue, identified the actual bugs and reported them upstream. If you want to learn the simple steps to do this, you actually have to read the rest of the post :-) sngrep crash during the live OpenSIPit event Last year we participated in OpenSIPIt’s interoperability testing event which was held between the 14th and 15th of September 2020.…
SIPVicious PRO beta release contains SIP fuzzer and better automation
Published on Dec 3, 2020 in fuzzing, sip security, sipvicious pro, sip security testing, sipvicious releases
We just made SIPVicious PRO v6.0.0-beta.1 available to our beta testers. This latest release brings a new SIP fuzzer and enhancements for automation to your favourite RTC offensive security toolset. We have the following highlights with this release: New fuzzing tools - sip fuzz method. This used to be in a separate internal tool called gasoline (see our toolset page); this now been polished and has joined the SVPRO toolset; this has been used to identify vulnerabilities in Kamailio (advisory), sngrep (advisory 1 and 2) and other SIP servers.…
How doing QA testing for SIPVicious PRO led to an Asterisk DoS
Published on Nov 10, 2020 in fuzzing, sip security, sipvicious pro, sip security testing
Executive summary (TL;DR) While heavily testing SIPVicious PRO for bugs, we encountered an unexpected crash in Asterisk. We reported this to the Asterisk team, who recently issued a fix. If you’re a vendor, you too can beta test SIPVicious PRO! How the Asterisk crash was found We test our software as much as we can because, like any other software, ours contains bugs too! When it comes to SIPVicious PRO, one of our quality assurance tests is to run it against instances of Asterisk and Kamailio and check for expected results.…