Blog
The Yeti is here
After several months of dedicated … uh dedication, our new network footprinting tool is being made available to the masses. It’s called Yeti and it is a cross-platform, Java application. It’s predecessor, BidiBlah, was only available on Windows platforms and hopefully with Yeti we can now offer Internet intelligence gathering to everyone. So what does Yeti do: Top level domain expansion (tld expand) Forward lookups (mx,ns,a,cname and zone transfers) Reverse…
Training – lots of stuff(c)
Hey. Charl here. Lots of stuff is happening on the training front right now (ed: right now!), and I wanted to make sure everyone is aware of it. 1. New schedule published At the start of the year we always try publish a schedule of when and where our various training courses are happening. Of course it changes a bit as the year progresses, but its a pretty good overview…
Happy New Year gift: source code!
If you use the Gregorian Calendar, then Happy New Year! Down here in South Africa, we’ve also ushered in a new year and in celebration SensePost is releasing source code for our in-house web proxy, Suru, under a BSD-style license. When released in 2006, Suru introduced a number of unique features to the world of inline proxies including trivial fuzzing, token correlation and background directory brute-forcing. Further improvements include timing…
Season’s Greetings
To all our customers, staff (past and present), business partners, friends and associates I’d like to wish a joyous and peaceful festive season. What started out as a depression is slowly becoming a success and I thank you for all your support during this past year. I look forward to seeing you all again soon and sharing with you an exciting and prosperous 2011!
Internal spotlight
As the year winds down, it’s time to mention a few internal victories that are fun to share: Daniel Cuthbert and Rogan Dawes (both staunch OWASP proponents) have joined our assessment team, which is a big boost. Welcome guys! Glenn Wilkinson, a lead analyst, had his Masters thesis listed on Amazon Dominic White was interviewed in all his glory on .za teevee over Wikileaks
Playing with Python Pickle #3
[This is the third in a series of posts on Pickle. Link to part one and two.] Thanks for stopping by. This is the third posting on the bowels of Python Pickle, and it’s going to get a little more complicated before it gets easier. In the previous two entries I introduced Pickle as an attack vector present in many memcached instances, and documented tricks for executing OS commands across…
Playing with Python Pickle #2
[This is the second in a series of posts on Pickle. Link to part one.] In the previous post I introduced Python’s Pickle mechanism for serializing and deserializing data and provided a bit of background regarding where we came across serialized data, how the virtual machine works and noted that Python intentionally does not perform security checks when unpickling. In this post, we’ll work through a number of examples that…
Playing with Python Pickle #1
In our recent memcached investigations (a blog post is still in the wings) we came across numerous caches storing serialized data. The caches were not homogenous and so the data was quite varied: Java objects, ActiveRecord objects from RoR, JSON, pre-rendered HTML, .Net serialized objects and serialized Python objects. Serialized objects can be useful to an attacker from a number of standpoints: such objects could expose data where naive developers…
Black Hat Abu Dhabi – Full … NOT!
The bad news is that our course at Black Hat Abu Dhabi is completely full. The good news is … they’ve given us a bigger room! So if you’ve been told the course is full, or if you haven’t registered yet, please do it quickly before it fills up again. Problems? Please contact us or mail training[at]sensepost[dot]com.
Analysis of a UDP worm
From time to time I like to delve into malware analysis as a pastime and post interesting examples, and recently we received a malware sample that had a low-detection rate. Anti-Virus coverage was 15/43 (35.7%) based on a virustotal.com report and Norman sandbox did not detect any suspicious activity as shown in the report below: Norman sandbox report did not show any registry or network activity. This might be due to the…