CSAW CTF Qualification Round 2021
34 challenges with 87 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 CTFtimeMisc19
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Alien Math
4 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Gatekeeping
4 writeups- wsgi
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Weak Password
4 writeups- hashcat
Same technique in picoCTF: PW Crack 1, PW Crack 2, PW Crack 3
checker
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Crack me
3 writeups- johntheripper
- cracking
Same technique in picoCTF: Permissions, Specialer, Codebook
Lazy Leaks
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
ncore
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Password Checker
3 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Save the tristate
3 writeups- quantumcrypto
- qkd
Same technique in picoCTF: Permissions, Specialer, Codebook
- ics
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Procrastination
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
ransomwaRE
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
The Magic Modbus
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
scp-terminal
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
Sonicgraphy Fallout
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.
- crypto
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- crypto
- forgery
- elgamal
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- crypto
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- rsa
Same technique in picoCTF: StegoRSA, john_pollard, rsa_oracle
- ucucuga
- crypto
- enigma
- warm-up
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- crypto
- ecc
Same technique in picoCTF: Shared Secrets, StegoRSA, Timestamped Secrets
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.
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- kernel
- pwn
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
- pwn
- cpp
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
Web3
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Poem Collection
3 writeups- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
no-pass-needed
2 writeups- sqli
Same technique in picoCTF: Irish-Name-Repo 3, More SQLi, Secret Box
securinotes
2 writeups- web
- websocket
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Forensics2
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
A Pain In the BAC(net)
3 writeups- scada
Same technique in picoCTF: FindAndOpen, c0rrupt, extensions
- salaea
- traffic
- ics
Same technique in picoCTF: FindAndOpen, c0rrupt, extensions