2018weight 22.78Break In

Break In CTF 2018

3 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

Web1

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

Connecting Will
500 pts2 writeups
- php
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3

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

Aalekh and his business
500 pts2 writeups
- xforwardedfor
- networking
Same technique in picoCTF: FindAndOpen, c0rrupt, extensions

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

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1 pts1 writeup
Same technique in picoCTF: Permissions, Specialer, Codebook

Web1

Connecting Will

Forensics1

Aalekh and his business

Misc1

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