Zipper @ HackTheBox
This post is a walkthrough of Zipper, an interesting machine on hackthebox.eu featuring the zabbix network monitoring application. It involves the application of known zabbix exploits, manipulation of database entries and light custom exploitation of a privileged binary.
Giddy @ HackTheBox
In this post I will give a quick walkthrough on Giddy from hackthebox.eu. The machine involves (automated) sql injection, stealing ntlm hashes via sqli and the exploitation of vulnerable service for which a CVE exists.
Ypuffy @ HackTheBox
Ypuffy is a rather unique machine on hackthebox.eu because it features OpenBSD as operating system. In my version of getting root it didn't matter too much unfortunately because a public kernel exploit gave root quite easily. Ypuffy features ldap and smb enumeration and then application of public exploit for OpenBSD.
Exploiting LimeSurvey
LimeSurvey is a widely used open source application that allows it to create surveys with various features. For this post I will use LimeSurvey Version 2.72.3+171020 which contains a known vulnerability and use it together with 2 yet unknown vulnerabilities to achieve code execution. The first step of the exploit...
Code coverage with DynamoRIO
DynamoRIO comes with a handy tool to generate code coverage data for any program. To generate the data we need to use drrun with the drcov client. For this post we will generate coverage data for a simple example program. When choosing a target program it's best to have the...
Dynamic Binary Instrumentation with DynamoRIO
DynamoRIO (http://dynamorio.org/) is a dynamic binary instrumentation framework that allows to manipulate binary code at runtime. The framework can be used to build various tools for program analysis, profiling, optimization and many more on top of it.