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SIPVicious OSS has been around since 2007 and is actively updated to help security teams, QA and developers test SIP-based VoIP systems and applications.

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Welcome to SIPVicious OSS security tools

SIPVicious mascot

SIPVicious OSS is a set of security tools that can be used to audit SIP based VoIP systems. Specifically, it allows you to find SIP servers, enumerate SIP extensions and finally, crack their password.

To get started read the following:

For usage help make use of


A note to vendors and service providers

If you are looking for a professional grade toolset to test your RTC systems, please consider SIPVicious PRO.

The tools

The SIPVicious OSS toolset consists of the following tools:

  • svmap
  • svwar
  • svcrack
  • svreport
  • svcrash


this is a sip scanner. When launched against
ranges of ip address space, it will identify any SIP servers 
which it finds on the way. Also has the option to scan hosts 
on ranges of ports.

Usage: https:


identifies working extension lines on a PBX. A working 
extension is one that can be registered. 
Also tells you if the extension line requires authentication or not. 

Usage: https:


a password cracker making use of digest authentication. 
It is able to crack passwords on both registrar servers and proxy 
servers. Current cracking modes are either numeric ranges or
words from dictionary files.

Usage: https:


able to manage sessions created by the rest of the tools
and export to pdf, xml, csv and plain text.

Usage: https:


responds to svwar and svcrack SIP messages with a message that
causes old versions to crash. 

Usage: https:


Please refer to the installation documentation.

Further information

Check out the wiki for documentation.

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