Hack.lu CTF 2019
18 challenges with 32 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 CTFtimeWeb7
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
- sqli
- web
- sqlite
- websocket
Same technique in picoCTF: Irish-Name-Repo 3, More SQLi, Secret Box
- javascript
- web
- xss
Same technique in picoCTF: Java Code Analysis!?!, notepad, noted
- blindsqli
- ssi
- web
- sqli
Same technique in picoCTF: Irish-Name-Repo 3, More SQLi, Secret Box
- web
- xss
Same technique in picoCTF: notepad, noted, Client-side-again
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
- sqli
- misc
- web
- base64
- pattern-matching
Same technique in picoCTF: Irish-Name-Repo 3, More SQLi, WebDecode
- extension
- web
- xss
- firefox
Same technique in picoCTF: notepad, noted, Client-side-again
Binary exploitation5
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
- pwn
- kernel
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- mips
- stack_canaries
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- alloca
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- linux
- pwn
- heap
Same technique in picoCTF: tea-cash, sice_cream, zero_to_hero
Cryptography3
Recover a plaintext or a key from something that was supposed to protect it. In practice: identify the scheme, find the parameter the author got wrong, exploit it.
- xor
- crypto
- cobol
Same technique in picoCTF: Custom encryption, triple-secure, XtraORdinary
- lamport-signature
- crypto
- reverse
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- aes
- rev
- crypto
- side-channel
Same technique in picoCTF: Timestamped Secrets, AES-ABC, Compress and Attack
Misc2
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
- sourcecode
- python
- code-analysis
Same technique in picoCTF: PW Crack 1, PW Crack 2, PW Crack 3
- misc
- shellscript
Same technique in picoCTF: Permissions, Specialer, Codebook
Reverse engineering1
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
- reverse
- engineering
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300