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intrigus.org | ||
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ik0ri4n.de
[AI summary] A Google Capture The Flag 2023 blog post detailing solutions to binary reverse engineering and exploitation challenges involving crackmes and vulnerable parsers. |
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wachter-space.de
Solution to the Cyber Security Rumble Finals challenge simple-asm. The challenge is strait forward. It defines an custom set of instructions, that get translated to x64 instructions directly and are then executed at a fixed offset, in a no-PIE binary. The translation lacks checks, such that the instructions do more than they should at first sight, when using specific higher register. This is the provides challenge source code, also running on the remote instance: |
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mathamy.com
[AI summary] A blog post details a fun Hacker School project where the author compiled a version of Python that rewrites the 'import' statement to use the 'accio' spell from Harry Potter. |
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davmac.wordpress.com
A discussion of undefined behaviour and compiler optimisation, particularly in regards to signed integer overflow. C (and C++) compilers are becoming notorious for exploiting the notion of undefined behaviour - the idea that certain things a program might do have no behaviour proscribed by the language standard, and that the compiler can assume the program... |
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