vsCTF 2023 Challenge Writeups (4x pwn, 1x misc, 1x rev, 1x web)

[@renchtg]

Glad to hear you enjoyed our challenges! Thanks for participating and making these great writeups!

[@SloppyJoePirates]

Thanks Rench!

[@pwnabyssinia]

cool pwn writeups, thanks a lot

[@HxN0n3]

superb writeup again. Thank you

[@salem48097]

You earned a subscriber amazing explanation

[@HxN0n3]

right

[@muhammadfawwazrazani8081]

yoo haven't see you in a while, cool challenges and writeup

[@dy5topian]

Lol just checked a vid of you yesterday night and i was like bro what happened he hadn't uploaded in a month, welcome back!

[@SloppyJoePirates]

Haha thanks. I blame balders gate 3.

[@zeyadabulaban-p2n]

mainModule is deprecated and now returns undefined according to nodejs docs

[@SloppyJoePirates]

Ah thanks!

[@erenyeager5332]

In the first challenge how did you determine which values to send by calculating libc % 3 ?? Like you send "p" when the modulus was zero ,s when the value was "1" ? How did you determine that ?

[@SloppyJoePirates]

I think I just guessed and checked, I printed out what I sent and if it was wrong I changed it and re-ran. =P very scientific

[@cuongchien]

could you give me payload for admin bot challenge ?

[@SloppyJoePirates]

Sure thing, gist.github.com/c0nrad/b919aa1c659a4d0f9596f5c6e1aad47f

[@zayyar-me5qv]

also wait for DownUnderCTF writeups,bro

[@SloppyJoePirates]

:( I think I got sick during the CTF and stopped halfway. So there won't be a video for DUCTF

[@zayyar-me5qv]

@@SloppyJoePirates take care,brother.