Analysis
Investigating an in-the-wild campaign using RCE in CraftCMS
In mid-February, Orange Cyberdefense’s CSIRT was tasked with investigating a server that had been hosting a now-unavailable website. The site had been built using CraftCMS running version 4.12.8. The forensic investigation and post-analysis with the Ethical Hacking team led to the discovery of two CVEs: CVE-2024-58136 and CVE-2025-32432. This blog post aims to present: The investigation that led to the finding of those two CVEs, and details of the different…
Mallet, a framework for creating proxies
Thanks to IoT and other developments, we’re having to review more and more non-HTTP protocols these days. While the hardware is interesting to look at, one can often find vulnerabilities at a network layer too. With many of the non-HTTP-only proxies having fallen out of maintenance or requiring a significant amount of custom code to be written for each unique protocol encountered, we decided to build a tool to make…
A distinguisher for SHA256 using Bitcoin (mining faster along the way)
This post assumes a passing familiarity with what a Distinguishing Attack on a cryptographic hash is, as well as the high level composition of Bitcoin block headers and mining them. tldr: To distinguish between an ideal random permutation hash and SHA256, hash a large amount (~2^80) of candidate 1024 bit blocks twice, as done in Bitcoin. Ensure that the bits of the candidate blocks are sparsely set (much fewer than…
Abusing GDI Objects for ring0 Primitives Revolution
This post is an accompaniment to the Defcon 25 talk given by Saif. One of the core topics of the talk was the release of a new technique GDI object abuse technique, name Palette Objects. Saif presented a previously unreleased Windows 7 SP1 x86 exploit involving the abuse of a newly discovered GDI object abuse technique. A complete white-paper on the topic was released and can be found here: Whitepaper Both…
The TRITON Won’t Protect You From Our Punches
Whilst on a Red Team assessment back in 2015, we were faced with a tough Data Leak Protection (DLP) and web content management gateway system called Forcepoint TRITON. One of the goals, besides gaining full access to the client, was to see if sensitive data could be exfiltrated from the internal network to attacker controlled servers. The first logical step was to analyse how this device functioned and identify any flaws. Forcepoint Triton, according…
Running sslscan on 5k servers taken from Alexa’s top 10k
Transport layer security has had a rough ride recently, with a number of vulnerabilities being reported. At a time when trust is required between you and the site you are interacting with, it’s key that website owners configure their sites to be as secure as possible. With that in mind, I decided to analyse HTTP Security Headers from the top 10k Alexa websites, and look at what SSL Ciphers were being…
Lovely Pwnies – Twitter Monitor
Recently there were revelations about a GHCQ initiative called ‘Lovely Horses’ to monitor certain hackers’ Twitter handles. The guys over at Paterva quickly whipped up a Maltego Machine to replicate this: Building your own LovelyHorse monitoring system with Maltego (even the free version) – it’s easy! We’ve wrapped some supporting transforms around that Machine to allow you to create and manage your own set of lovely horses (Twitter accounts), and…
Using Maltego to explore threat & vulnerability data
This blog post is about the process we went through trying to better interpret the masses of scan results that automated vulnerability scanners and centralised logging systems produce. A good example of the value in getting actionable items out of this data is the recent Target compromise. Their scanning solutions detected the threat that lead to their compromise, but no humans intervened. It’s suspected that too many security alerts were…
Associating an identity with HTTP requests – a Burp extension
This is a tool that I have wanted to build for at least 5 years. Checking my archives, the earliest reference I can find is almost exactly 5 years ago, and I’ve been thinking about it for longer, I’m sure. Finally it has made it out of my head, and into the real world! Be free! Be free! So, what does it do, and how does it do it? The…
Analysis of Security in a P2P storage cloud
A cloud storage service such as Microsoft SkyDrive requires building data centers as well as operational and maintenance costs. An alternative approach is based on distributed computing model which utilizes portion of the storage and processing resources of consumer level computers and SME NAS devices to form a peer to peer storage system. The members contribute some of their local storage space to the system and in return receive “online backup and data…
Page 1 of 2
Next