m7c1
Much by way of discourse, some by way of advice; security from Clausewitz to Claude.
In this tutorial we'll cover how to perform a simple buffer overflow by jumping to shellcode that we've stored in an environment variable. We'll cover how to place the code, find its address, and go over a simple example of jumping to it to perform an exploit.
In this tutorial, we'll cover how to create and use command line pipelines. We'll go over a little bit of background on what they are, work through a couple of examples and finally address a common pipeline difficulty to do with standard error.
One very common command line activity is process control. In this tutorial, using tools like kill, and builtins like fg and jobs to interact with processes, and cover how to run them in both the foreground, and background of a single terminal.
In this tutorial we'll cover how to use the xargs command-line tool. xargs allows arbitrary input, like the output of another command or the contents of a file, to be used as the parameters for another command.
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Buffer Overflow 0x01
A step by step buffer overflow tutorial. We'll cover why buffer overflows exist, how they can be abused to subvert flow of control, and step though an example exploitation in Linux using GDB. -
Tor and 'Invisibility'
Misconstruing Tor as a cloak of invisibility is dangerous. -
Curation
How can we continue to protect ourselves in an era defined by ubiquitous data collection? Curation! -
(Ab)using Tor to circumvent GDPR
Utilize Tor to circumvent GDPR in Europe.