Backfire is all about exploiting red team infrastructure, first Havoc, and then HardHatC2. I’ll start with a Havoc server and leak the configuration from the website. I’ll exploit an SSRF vulnerability to get access to the admin port internally. There’s an authenticated RCE vulnerability on this port, but it involves sending payloads into a websocket. I’ll create a chained exploit using the SSRF to stand up and communicate over a websocket to get command injection and a shell. From he...| 0xdf hacks stuff
UV is the hot new tool among Python developers. It addresses a ton of issues in the Python ecosystem, from packaging, project management, tool installation, and virtual environment management. A lot of the tutorials out there are for developers. In most of the roles I’ve worked in information security, I’ve been much more a user of Python than a developer. This post is all about how to use UV to install and run Python applications and scripts.| 0xdf hacks stuff
There are little clues that can be gathered when first approaching a target as to the operating system and version. This cheat sheet is meant to showcase three methods for pulling information from initial scans. First I’ll look at SSH and webserver application versions and use them to map to OS versions. Then I’ll look at ports that are commonly present on Windows DCs and clients. Finally, I’ll look at IP packet TTL values, and how they can identify an OS, as well as virtualized systems.| 0xdf hacks stuff
It’s always useful to know as much about the technology stack behind a web application in order to exploit it. One simple way to get information about an application is to look at the 404 not found page. If the site hasn’t created a custom 404 page, it can be used to fingerprint the framework / language being used by the site.| 0xdf hacks stuff
Our latest post focuses on the command and control (C2) software frameworks used by professional offensive security red teams and criminal organizations alike. We dived into the source code of multiple high-profile, open-source C2s and discovered vulnerabilities in most of them. In this post, we provide a brief overview of C2 concepts, review the details of the frameworks' identified vulnerabilities (with nifty reproduction gifs included!), and conclude with some final thoughts about the curr...| Include Security Research Blog