csictf 2020
52 challenges with 128 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 CTFtimeMisc32
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Oreo
6 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Archenemy
4 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Cascade
4 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Rivest Shamir Adleman
4 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Smash
4 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
AKA
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
find32
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Global-Warming
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Mr Rami
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Warm Up
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Blaise
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Modern Clueless Child
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Panda
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
The Confused Deputy
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Vietnam
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Escape Plan
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
File Library
1 writeup- nodejs
Same technique in picoCTF: Permissions, Specialer, Codebook
Friends
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
Gradient sky
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
HTB x02
1 writeup- linux
- htb
Same technique in picoCTF: Permissions, Specialer, plumbing
Htb x04
1 writeup- linux
Same technique in picoCTF: Permissions, Specialer, plumbing
HTB x06
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
RickNMorty
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Cryptography6
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.
little RSA
5 writeups- rsa
Same technique in picoCTF: StegoRSA, john_pollard, rsa_oracle
Quick Math
3 writeups- rsa
Same technique in picoCTF: StegoRSA, john_pollard, rsa_oracle
login_error
2 writeups- aes
Same technique in picoCTF: Timestamped Secrets, AES-ABC, Compress and Attack
- math
- optimization
- algorithm
- python
- misc
- hill
- crypto
- java
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- crypto
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
Web6
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
- rce
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Secure Portal
4 writeupsSame technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
The Usual Suspects
3 writeups- ssti
Same technique in picoCTF: Bithug, Startup Company, SSTI2
- web
- jwt
Same technique in picoCTF: Java Code Analysis!?!, JaWT Scratchpad, JAuth
Htb x05
1 writeup- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
HTBx03
1 writeup- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Binary exploitation4
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 intended 0x2
8 writeupsSame technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
pwn intended 0x3
7 writeupsSame technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
pwn intended 0x1
4 writeups- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
Secret Society
1 writeup- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
Reverse engineering2
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
- reversing
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
- reverse
- engineering
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
Steganography1
Find the payload hidden inside a carrier that looks ordinary. Bit planes, appended data, metadata, and audio spectrograms.
- steganography
- forensics
Same technique in picoCTF: FindAndOpen, StegoRSA, Glory of the Garden
OSINT1
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
- osint
Same technique in picoCTF: Permissions, Specialer, Codebook