Isopach's blog

Isopach's blog

Isopach's CTF writeups and security research

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CTFSG CTF 2021 Writeup

March 14, 2021

Wrote one simple challenge for our first CTF - here's the writeup!
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TP-Link TL-WR841N Command Injection Exploit (CVE-2020-35576)

January 13, 2021

I was playing with my pet home router, when I noticed that a parameter seemed to be executed by some form of system(). I tried to escape it and got my first CVE!
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STACK the Flags CTF Writeup

December 6, 2020

Played with some members of TFNS as Team IPhone XS and it was fun! We finished 5th. Some of the challs had too much guess in them though.
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Bingo CTF Writeup

November 13, 2020

Attempted this CTF on a workday at 2am. Zero bingos, but learnt a lot during post-CTF discussion so I'm going to write about it. Btw, Misc = Crypto and Forensics.
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BugPoC 2020 November XSS Writeup

November 11, 2020

I participated in this XSS Challenge due to my friend @stypr posting about it. It took me well over 2 hours to solve and I realized again how lacking my skills are.
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HacktivityCon 2020 - Scavenger Hunt

August 1, 2020

I played guess the flag with CTF.SG last week, spending a total of 3 hours to solve 20+/- of all the guess challenges.
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