HackIM 2016
73 challenges with 273 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 CTFtimeMisc16
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: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, Team-Sportsball/CTFs-2016, vishwaraj/write-ups-2016
Also written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, Team-Sportsball/CTFs-2016, vishwaraj/write-ups-2016
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Calligraphy 100
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Hiding In Plain Sight 200
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Know India 300
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Lol 400
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
- programming
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: tuvshuud/1up
- programming
- encoding
Same technique in picoCTF: PW Crack 2, Codebook, convertme.py
- yenc
- icmp
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
- misc
- programming
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
- programming
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Question 1
1 official solutionAlso written up in: osirislab/CTF-Solutions
Question 4
1 official solutionAlso written up in: osirislab/CTF-Solutions
Question 5
1 official solutionAlso written up in: osirislab/CTF-Solutions
- trivia
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Uncategorised15
The upstream scoreboard did not say, so neither do we.
Trivia 400
6 official solutionsAlso written up in: ctfs/write-ups-2016, raccoons-team/ctf, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Trivia 100
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Trivia 200
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Trivia 300
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Dottest.Gv
1 official solutionAlso written up in: raccoons-team/ctf
Dottest.Gv1
1 official solutionAlso written up in: raccoons-team/ctf
Expl 100 ARM
1 official solutionAlso written up in: geeksspeak.github.io
Hiding In Plain Sight
1 official solutionAlso written up in: raccoons-team/ctf
Also written up in: raccoons-team/ctf
Pinkfloyd
1 official solutionAlso written up in: scwuaptx/CTF
Prison Break
1 official solutionAlso written up in: raccoons-team/ctf
Pseudorandom
1 official solutionAlso written up in: Team-Sportsball/CTFs-2016
Unicle
1 official solutionAlso written up in: bl4de/ctf
Unicle Web200
1 official solutionAlso written up in: bl4de/ctf
Zorro Pub
1 official solutionAlso written up in: Team-Sportsball/CTFs-2016
Cryptography9
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.
- xor
Same technique in picoCTF: Custom encryption, XtraORdinary, It's Not My Fault 2
- caesar
Same technique in picoCTF: Mod 26, New Caesar, credstuff
Also written up in: ctfs/write-ups-2016, ctfs/write-ups-2016, ctfs/write-ups-2016, epicleet/write-ups-2016, epicleet/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, jashanbhoora/write-ups-2016
Also written up in: ctfs/write-ups-2016, ctfs/write-ups-2016, ctfs/write-ups-2016, ctfs/write-ups-2016, epicleet/write-ups-2016, epicleet/write-ups-2016, epicleet/write-ups-2016, epicleet/write-ups-2016
Also written up in: ctfs/write-ups-2016, ctfs/write-ups-2016, ctfs/write-ups-2016, dfcictf/ctf-writeups2016, epicleet/write-ups-2016, epicleet/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016
- xor
Same technique in picoCTF: Custom encryption, XtraORdinary, It's Not My Fault 2
- md5
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
- openssl
- rsa
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, john_pollard
Also written up in: WesternCyber/CTF-WriteUp
Web8
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Hqlol 500
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Luhn 300
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Signserver 100
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Smashthestate 400
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Unickle 200
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
- symlink
- zip
- web
- race condition
Same technique in picoCTF: Live Art, secure-email-service, No FA
- web
Same technique in picoCTF: Live Art, secure-email-service, No FA
- sqlinjection
- hql
- hibernate
Same technique in picoCTF: Irish-Name-Repo 3, Startup Company, More SQLi
Reverse engineering8
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
Donfos 500
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Prisonbreak 500
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Pseudorandom 300
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Zorropub 100
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
- re
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
- re
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
- xmldecoder
- java
- web
- exploit
Same technique in picoCTF: vault-door-1, vault-door-3, vault-door-4
- reverse engineering
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Forensics7
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
Catchmeifyoucan 100
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
File And Folders 500
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Payload Delivers Fantastic 300
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Peepingtom 400
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Sculptme 200
5 official solutionsAlso written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
- javascript
- compression
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
- forensics
Same technique in picoCTF: investigation_encoded_2, FindAndOpen, Ph4nt0m 1ntrud3r
Binary exploitation6
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: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
Also written up in: ctfs/write-ups-2016, epicleet/write-ups-2016, jashanbhoora/write-ups-2016, Niccher/write-ups-2016, vishwaraj/write-ups-2016
- exploit
- arm
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
- seccomp
- pwnable
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
- ip
- bin
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
- pwn
- heap
Same technique in picoCTF: vr-school, sice_cream, zero_to_hero
OSINT3
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
- recon
Same technique in picoCTF: CVE-XXXX-XXXX
- recon
Same technique in picoCTF: CVE-XXXX-XXXX
- programming
- recon
Same technique in picoCTF: CVE-XXXX-XXXX
Steganography1
Find the payload hidden inside a carrier that looks ordinary. Bit planes, appended data, metadata, and audio spectrograms.
- stegano
- recon
Same technique in picoCTF: StegoRSA, Glory of the Garden, Investigative Reversing 0