CSCML CTF 2020
20 challenges with 35 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 CTFtimeUncategorised6
The upstream scoreboard did not say, so neither do we.
Also written up in: qqgnoe466263/My-PWN-Life
Also written up in: qqgnoe466263/My-PWN-Life
Also written up in: jt00000/ctf.writeup
Solver
1 official solutionAlso written up in: ykaridi/RSAOracle-Writeup-CSCML2020
WU NCW CyberArena Lu mah mending, lah kita
1 official solutionAlso written up in: Kelompok-Studi-Linux-Stikom-Bali/write-up-ctf
WU NCW CyberArenaFinal Lu mah mending, lah kita
1 official solutionAlso written up in: Kelompok-Studi-Linux-Stikom-Bali/write-up-ctf
Web4
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Also written up in: andregri/CTF-writeups
- web
- websec
Same technique in picoCTF: Live Art, secure-email-service, No FA
- web
Same technique in picoCTF: Live Art, secure-email-service, No FA
Also written up in: andregri/CTF-writeups
- web
- websec
Same technique in picoCTF: Live Art, secure-email-service, No FA
- web
Same technique in picoCTF: Live Art, secure-email-service, No FA
Misc4
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Also written up in: h4ck3rb0b/writeups
- puzzle
- javascript
- game
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: mgdickinson/ctf-writeups
- face
- detection
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: goswami-rahul/ctf
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: h4ck3rb0b/writeups
- git
Same technique in picoCTF: Blame Game, Collaborative Development, Commitment Issues
Binary exploitation3
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
Also written up in: goswami-rahul/ctf, goswami-rahul/ctf
- python-exploitation
- crypto
- bufferoverflow
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Also written up in: TomHatskevich/TomHatskevich_CTF_Challenges
- pwn
- heap
- calloc
Same technique in picoCTF: vr-school, sice_cream, zero_to_hero
Strcmp
1 official solutionAlso written up in: nordbo/writeups
Reverse engineering2
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: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
- reverse
- engineering
- re
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Cryptography1
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.
- random
- crypto
- rsa
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, john_pollard