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CTF writeups

[NorthSec CTF 2023] - Desk Surveillance Publisher
·10 mins
CTF writeups ROP autopwn angr
Cameras are down. Not the endpoint installing their firmwares. Open socket here. Could analyze some outdated firmwares.
[RITSEC CTF 2023] - Steg as a Service
·10 mins
CTF writeups ROP BinDiff
Can you try exploiting our shady copy of steghide so that we can convince our managers to update the binary?
[Real World CTF 5th] - tinyvm
·15 mins
CTF writeups VM FSOP
This is a CTF challenge called TinyVM. The author is very lazy, not wanting to write a description of the challenge, and the code is directly cloned from https://github[.]com/jakogut/tinyvm.
[SecurityFest CTF 2022] - krupt
·10 mins
CTF writeups kernel syscalls
The key to r00t is ZcZQndRX or was it DE7NUC6l? Wait, it was r2JLegUE. Eh, you’ll figure it out.
[NorthSec CTF 2022] - Shellcode sandbox
·17 mins
CTF writeups process injection shellcoding
I’ve been told that there’s a service running in our infrastructure used by the API team to offload part of their computations. I have a bad feeling about it! Could you take a look at it and make sure it’s safe? There’s a rumour going around that there’s confidential information in some file named flag.txt.
[Real World CTF 4th] - SVME
·5 mins
CTF writeups VM ROP
Professor Terence Parr has taught us how to build a virtual machine. Now it’s time to break it!
[DefCamp CTF 2022] - blinsight
·8 mins
CTF writeups blind PWN ROP
Hunting for eggs!
[Hackfest 2020 CTF] - salt2
·4 mins
CTF writeups format strings
This challenge was the only PWN challenge of the Hackfest 2020 CTF.