2024weight 74.41TetCTF

TetCTF 2024

5 challenges with 5 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

Web2

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: Web attacks and session tokens

Hello from API GW (100)
136 pts1 writeup
- web
- cloud
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Microservices (200)
991 pts1 writeup
- cloud
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3

Misc2

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

babyasm
1 writeup
- engineering
Same technique in picoCTF: Permissions, Specialer, Codebook
X Et Et
1 writeup
Same technique in picoCTF: Permissions, Specialer, Codebook

Forensics1

Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.

Solve it with:File type identifier by magic bytes Magic byte and file signature table PCAP analyzer for CTF network forensics EXIF metadata viewer Learn: File forensics and carving Learn: Network forensics

TET & 4N6
100 pts1 writeup
- misc
- forensic
Same technique in picoCTF: FindAndOpen, c0rrupt, extensions

Web2

Hello from API GW (100)

Microservices (200)

Misc2

babyasm

X Et Et

Forensics1

TET & 4N6

Other 2024 events