CyberThreatForce CTF | 2021
15 challenges with 16 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 CTFtimeForensics8
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
OSINT2
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
- osint
Same technique in picoCTF: CVE-XXXX-XXXX
- osint
Same technique in picoCTF: CVE-XXXX-XXXX
Web1
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
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
- fibonacci
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Steganography1
Find the payload hidden inside a carrier that looks ordinary. Bit planes, appended data, metadata, and audio spectrograms.
Also written up in: Jump2Flag/write-ups
- steganography
Same technique in picoCTF: StegoRSA, Glory of the Garden, Investigative Reversing 0
Misc1
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
- gamehacking
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
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.
Working.Exploit.Bof3
1 official solutionAlso written up in: nobodyisnobody/write-ups