vsCTF 2022
38 challenges with 105 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 CTFtimeReverse engineering9
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
Tuning Test
6 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges
Flood
5 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, acdwas/ctf
Also written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges
- rev
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Hex A Gone
3 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges
Flag Checker
2 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges
- rev
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Also written up in: acdwas/ctf
Result
1 official solutionAlso written up in: sahuang/my-ctf-challenges
- rev
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Misc8
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: kiyotaka-akaiwa/ctf-writeups, a2g2/vsCTF_Writeups-2022, pymivn/ctf
- miscellaneous
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: sahuang/my-ctf-challenges, kiyotaka-akaiwa/ctf-writeups, a2g2/vsCTF_Writeups-2022
- miscellaneous
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Roblox 2
1 writeupAlso written up in: kiyotaka-akaiwa/ctf-writeups, neilqmr/my-ctf-challenges-writeups, SpasicStefan/CTF-Writeups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: kiyotaka-akaiwa/ctf-writeups
- miscellaneous
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Baby Eval
1 writeupAlso written up in: DavidRotert/ctf-writeups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Egg Hunt
2 official solutionsAlso written up in: sahuang/my-ctf-challenges, OfficialCyberSpace/CTF-Writeups
Mysolution
1 official solutionAlso written up in: a2g2/vsCTF_Writeups-2022
Server
1 official solutionAlso written up in: sahuang/my-ctf-challenges
Uncategorised8
The upstream scoreboard did not say, so neither do we.
Art Final
2 official solutionsAlso written up in: jontay999/CTF-writeups, TehGelly/CTF-Writeups
REHOST
2 official solutionsAlso written up in: pwncollege/ctf-archive, pwncollege/ctf-archive
Baby Eval original
1 official solutionAlso written up in: francescolonardo/CTF-Writeups-NLP-Analysis
Check
1 official solutionAlso written up in: kiyotaka-akaiwa/ctf-writeups
NIST Finalist
1 official solutionAlso written up in: jontay999/CTF-writeups
PortableCrypto
1 official solutionAlso written up in: TehGelly/CTF-Writeups
strongRSA
1 official solutionAlso written up in: jontay999/CTF-writeups
vsCAPTCHA original
1 official solutionAlso written up in: francescolonardo/CTF-Writeups-NLP-Analysis
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.
Baby RSA
5 official solutionsAlso written up in: sahuang/my-ctf-challenges, jontay999/CTF-writeups, kiyotaka-akaiwa/ctf-writeups, TehGelly/CTF-Writeups, sahuang/my-ctf-challenges
Secure Grading System
5 official solutionsAlso written up in: sahuang/my-ctf-challenges, jontay999/CTF-writeups, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges
Also written up in: kiyotaka-akaiwa/ctf-writeups, pymivn/ctf
- cryptography
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
Strongest RSA
3 official solutionsAlso written up in: sahuang/my-ctf-challenges, TehGelly/CTF-Writeups, sahuang/my-ctf-challenges
Ascon
2 official solutionsAlso written up in: sahuang/my-ctf-challenges, OfficialCyberSpace/CTF-Writeups
NIST Finalist Revisited
1 official solutionAlso written up in: sahuang/my-ctf-challenges
Forensics4
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
Also written up in: kiyotaka-akaiwa/ctf-writeups, neilqmr/my-ctf-challenges-writeups, SpasicStefan/CTF-Writeups
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
Also written up in: kiyotaka-akaiwa/ctf-writeups, neilqmr/my-ctf-challenges-writeups, SpasicStefan/CTF-Writeups
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
Lets play osu
1 official solutionAlso written up in: sahuang/my-ctf-challenges
Whatistheflag
1 official solutionAlso written up in: OfficialCyberSpace/CTF-Writeups
Web2
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
- web
Same technique in picoCTF: Live Art, secure-email-service, No FA
Also written up in: DavidRotert/ctf-writeups
- web
Same technique in picoCTF: Live Art, secure-email-service, No FA
Binary exploitation1
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
- heap
Same technique in picoCTF: vr-school, sice_cream, zero_to_hero