Collaborate Disseminate
Once upon a time, small Linux-capable single board computers were novelties, but not anymore. Today we have a wide selection of them, many built around modules we could buy for our own projects. Some of the chipset suppliers behind these boards compete on cost, others find a niche to differentiate …read more
Continue reading Octavo Systems Shows Off With Deadbug Linux Computer
Like many of us, [Zoltan Toth-Czifra] has completely embraced 21st century living. His home is awash in smart gadgets and dodads, from color changing light bulbs to Internet-connected cameras. But he’s also got a soft spot for the look and feel of vintage hardware, like the rotary phone he keeps kicking around to remind him of the old days. He recently decided to bridge these two worlds by turning the rotary phone into a modern voice controlled assistant.
The first piece of the puzzle was getting the old school phone connected to something a bit more modern, namely a Raspberry …read more
Continue reading Vintage Rotary Phone Turned Virtual Assistant
When we think of industrialization and the industrial revolution, images of smoke stacks, purpose-built machinery, and automation come to mind. Some examples are the Jacquard Machine, as pictured below. This machine simplified the process of manufactur… Continue reading BSides Idaho Falls Preview: The Industrialization of Red and Blue Teaming
I need to demonstrate RTP bleed on an older version of Asterisk/RTPProxy, but I’m struggling with setting up the environment. Can somebody please tell me how to configure a proxy and two clients properly to be able to send .w… Continue reading How to reproduce the RTP bleed vulnerability?
I’m setting up a TLS connection for the purposes of sending secure SIP. The remote gateway (Twilio) doesn’t always send a finish message and as such those requests fail. Everything else appears to match between successful and… Continue reading TLS 1.2 Missing Finished Message
SIP-enabled devices have gained widespread use in recent times. With more and more VoIP applications that use SIP as their signalling protocol being developed these days, the industry should put greater emphasis on safeguarding SIP assets against unde… Continue reading SIP Protection: What Your SIP Security Solution Should Have
The free and open source network forensics tool NetworkMiner now comes with improved extraction of files and metadata from several protocols as well as a few GUI updates. But the biggest improvements for version 2.3 are in the commercial tool NetworkMi… Continue reading NetworkMiner 2.3 Released!
Linux is in everything these days, and that means designers and engineers are crying out for a simple, easy-to-use module that simplifies the design of building a product to do something with Linux. The best example of this product category would probably be the Raspberry Pi Compute Module, followed by the C.H.I.P. Pro and its GR8 module. There are dozens of boards with Allwinner and Mali chips stuffed inside that can be used to build a Linux product, and the ‘BeagleBone on a Chip’ is a fantastic product if you need Linux and want to poke pins really, really fast. …read more
Continue reading Microchip Introduces Tiny Cheap Linux Modules
I have been investigating a few instances recently where SIP UDP traffic has been somehow evading the ruleset defined in iptables leading me to suspect that there is a hole in our rules so i’m looking for advice on how to bol… Continue reading SIP UDP request breaking through iptables
For registration on voip server the standard port is 5060. For security reasons, iptables rules forbade requests for port 5060 from any addresses except one static (customer support).
Now the problem is that there are client… Continue reading How to secure sip/voip server?