Tags › sip security
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.…
Read more »SIPVicious PRO incremental update - and Gitlab CI/CD examples
Published on Mar 7, 2023 in sip security, sipvicious pro, sip security testing, sipvicious releases, devops, security tools
We just pushed out a new SIPVicious PRO update to our subscribing members! This version does not include any new major features. Instead, it fixes various bugs and brings missing but necessary features to various SIPVicious PRO tools. We have the following highlights in this update: Documentation now includes realistic Gitlab CI/CD examples The RTP fuzzer in the experimental version now supports SRTP Support for new SIP DoS flood request methods The RTP inject tool can now specify the RTP’s SSRC and payload ID The SIP password cracking tool now supports closing the connection upon each attempt The SIP ping utility supports INVITE For the boring details, including a list of bug fixes, do read the release notes for v6.…
Read more »SIPVicious PRO experimental now supports STIR/SHAKEN and 5 new tools
Published on Jul 6, 2022 in sip security, sipvicious pro, sip security testing, sipvicious releases
We just made two builds available to our SIPVicious PRO members. One is called the stable build, while the other is the experimental build. The v6.0.0-beta.5 stable build includes a large number of fixes, much better (or sane) defaults and full coverage of SRTP throughout the toolset. The experimental version is where the excitement is. Our members now have access to 5 new tools that we find useful in our work:…
Read more »Abusing SIP for Cross-Site Scripting? Most definitely!
Last updated on Jun 10, 2021 in sip security, voip security, application security
Executive summary (TL;DR) SIP can be used as an attack vector for AppSec vulnerabilities such as cross-site scripting (XSS), potentially leading to unauthenticated remote compromise of critical systems. VoIPmonitor GUI had one such vulnerability which highlights this attack vector exceptionally well. The following writeup explores how persistent backdoor administrative access can be obtained by sending malicious SIP messages. This vulnerability was reported by Enable Security and fixed in VoIPmonitor GUI back in February 2021, using standard cross-site scripting protection mechanisms.…
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Sandro Gauci, Enable Security
SIPVicious OSS v0.3.4 released with exit codes and automation features
Published on Jun 2, 2021 in sipvicious oss, security tools, sip security, sipvicious releases
We just made SIPVicious OSS v0.3.4 available, so go get it! Or install it via pip: pip install sipvicious --upgrade What’s new? Two main things: Exit codes, just like SIPVicious PRO’s Integration with Github Actions This release makes it much easier to use SIPVicious OSS within your CI/CD pipelines and other automation systems. One should, of course, read the documentation on automation for more information. But here’s an example script to get the idea of what can be done:…
Read more »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.…
Read more »SIPVicious PRO 6.0.0-beta.4 getting close to take-off!
Published on May 20, 2021 in sip security, sipvicious pro, sip security testing, sipvicious releases
This one’s a bit of a boring update for SIPVicious PRO. That’s because we’re getting to a stable place where flag names and values do not change too often. Which means, we’re getting out of beta rather soon! However, it is still a major update because we made a significant number of internal changes. For example, we standardized a number of flags to be the same across all tools. We discovered that we can minimize each tool’s flagset by making use of config flags such as --auth-config that allows you to configure behaviours specific to how SIPVicious handles authentication (e.…
Read more »Sandro Gauci, Enable Security
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.…
Read more »SIPVicious OSS 0.3.3 released with new STDIN and target URL specification
Published on Mar 25, 2021 in sipvicious oss, security tools, sip security, sipvicious releases
Without further ado, please say hello to SIPVicious OSS 0.3.3! To install or upgrade run pip install -U sipvicious. For more installation methods, see the wiki. What’s new? SIP extensions and passwords from standard input We have a new feature which seems so simple yet so powerful: STDIN for dictionary input! This works for both svwar and svcrack. It is similar to what we did with SIPVicious PRO, which (surprisingly) proved to be a very popular feature.…
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Alfred Farrugia, Enable Security
Bug discovery diaries: Abusing VoIPmonitor for Remote Code Execution
Last updated 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.…
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