2024weight 24.673 Prongs And a Computer

San Diego CTF 2024

6 challenges with 6 published community solutions between them. Solution links go to CTFtime’s task page, which aggregates every writeup for a challenge - individual blog posts rot, the aggregator does not.

Full task list on CTFtime

Web3

Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.

Solve it with:JWT decoder and signature verifier JWT alg=none bypass generator Web attack payload catalog JWT secret brute force Learn: Sessions, tokens and access control

Calculator
1 official solution
Also written up in: siunam321/CTF-Writeups
Open Source
1 official solution
Also written up in: siunam321/CTF-Writeups
SNOWfall
1 official solution
Also written up in: siunam321/CTF-Writeups

Binary exploitation2

Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.

Solve it with:ROP gadget finder Shellcode assembler and library Cyclic pattern generator and offset finder Format string exploit builder Learn: Binary exploitation

Def1nit3lysAfetoDol1st5iNc31hAveF0rb1dUnsafec0de
500 pts1 writeup
- pwnable
- rust
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Def1nit3lysAfetoDol1st5iNc31hAveF0rb1dUnsafec0de 1 day Rust pwn
1 official solution
Also written up in: uz56764.tistory.com

Misc1

Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.

Solve it with:Brainfuck and esolang decoder Cipher identifier and automatic decoder Regex tester with match offsets and capture groups Learn: Recognising encodings

Impossible Golf
1 official solution
Also written up in: siunam321/CTF-Writeups

Web3

Calculator

Open Source

SNOWfall

Binary exploitation2

Def1nit3lysAfetoDol1st5iNc31hAveF0rb1dUnsafec0de

Def1nit3lysAfetoDol1st5iNc31hAveF0rb1dUnsafec0de 1 day Rust pwn

Misc1

Impossible Golf

Other 2024 events