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Thomas

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July 17, 2017

Google CTF 2017: ASCII Art Client (reversing)

This challenge came with two files: a binary without an extension and a pcap file. The binary was probably going to be a Linux-executable, and indeed:

ctf

July 14, 2017

Google CTF 2017: Moon (reversing)

This challenge taught me a lot about a few different things. The challenge files consist of an executable and some SDL libraries. Running the executable shows us this:

ctf

July 9, 2017

Google CTF 2017: JohnnyBoy (reversing)

The description for the challenge is as follows:

ctf

June 29, 2017

Address Space Layout Randomisation on Windows

security windows

June 19, 2017

Fun with a vulnerable web server

This post is about an exercise I did which involves finding and exploiting vulnerabilities that have been deliberately left in a piece of software. I won’t be posting any references to the exercise in order not to spoil the solution...

security

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