Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.


08:20 AM
Connect Directly

Sipcrack Away

SIP hacking tools become more common as VOIP handsets get a toehold in the enterprise

As more SIP-based voice-over-IP handsets appear in the enterprise, hackers are taking notice and developing attacks specifically designed to exploit the protocol.

The Session Initiation Protocol (SIP) was originally developed by the Internet Engineering Task Force (IETF) and is currently used in wireless VOIP phones for starting and ending call sessions. The protocol has also been approved by the 3rd Generation Partnership Project 2 (3GPP2) as an element of the IMS architecture.

A new SIP password cracking tool called -- we kid you not -- Sipcrack has just been released on the Remote-Exploit.org Website. This tool would allow a malicious user with network access to capture the SIP credentials and crack the user password.

Such a breach could allow a hacker to carry out a number of different attacks, according to security consultant Shawn Merdinger. "The attacker could use those credentials for other attacks like using the company PBX for VOIP Phishing," he says. "Not to mention it's probably the same user password for other access in the organization."

Tools like Sipcrack will become increasingly dangerous, and prevalent, in a world where more and more phones are SIP-complaint. Major networking vendors such as Alcatel (NYSE: ALA; Paris: CGEP:PA), Avaya Inc. (NYSE: AV), and Cisco Systems Inc. (Nasdaq: CSCO) already have phones on the market along with a host of smaller players.

And SIP doesn't stop there. The protocol will also be a key element of future fixed/mobile convergence handsets and network appliances.

All of which likely means that we haven't seen the last of Sipcrack and its ilk.

— Dan Jones, Site Editor, Unstrung

Dan is to hats what Will.I.Am is to ridiculous eyewear. Fedora, trilby, tam-o-shanter -- all have graced the Jones pate during his career as the go-to purveyor of mobile essentials. But hey, Dan is so much more than 4G maps and state-of-the-art headgear. Before joining the ... View Full Bio

Recommended Reading:

Comment  | 
Print  | 
More Insights
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 7/6/2020
Russian Cyber Gang 'Cosmic Lynx' Focuses on Email Fraud
Kelly Sheridan, Staff Editor, Dark Reading,  7/7/2020
Lessons from COVID-19 Cyberattacks: Where Do We Go Next?
Derek Manky, Chief of Security Insights and Global Threat Alliances, FortiGuard Labs,  7/2/2020
Register for Dark Reading Newsletters
White Papers
Current Issue
Special Report: Computing's New Normal, a Dark Reading Perspective
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
The Threat from the Internetand What Your Organization Can Do About It
The Threat from the Internetand What Your Organization Can Do About It
This report describes some of the latest attacks and threats emanating from the Internet, as well as advice and tips on how your organization can mitigate those threats before they affect your business. Download it today!
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
PUBLISHED: 2020-07-08
Buffer overflow exists in Geovision Door Access Control device family, an unauthenticated remote attacker can execute arbitrary command.
PUBLISHED: 2020-07-07
An issue was discovered in CMSUno before 1.6.1. uno.php allows CSRF to change the admin password.
PUBLISHED: 2020-07-07
Victor CMS through 2019-02-28 allows XSS via the register.php user_firstname or user_lastname field.
PUBLISHED: 2020-07-07
A memory leak in Openthread's wpantund versions up to commit 0e5d1601febb869f583e944785e5685c6c747be7, when used in an environment where wpanctl is directly interfacing with the control driver (eg: debug environments) can allow an attacker to crash the service (DoS). We recommend updating, or to res...
PUBLISHED: 2020-07-07
Gossipsub 1.0 does not properly resist invalid message spam, such as an eclipse attack or a sybil attack.