RCTF 2015 Quals
41 challenges with 121 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 CTFtimeWeb10
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Jquery
6 official solutionsAlso written up in: ctfs/write-ups-2015, ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015, TycoRyco/write-ups-2015
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
- sqli
Same technique in picoCTF: Irish-Name-Repo 3, Startup Company, More SQLi
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
- web
Same technique in picoCTF: Live Art, secure-email-service, No FA
Comprehensive
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Jquery .Min
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Jquery 2.1.4.Min
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Login
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Upload
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Weeeeeb3
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Misc10
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Caesar Deformation
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Flag System
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
I Cant Hear That
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Sign In
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Target
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Where
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
100 Flag system
2 official solutionsAlso written up in: sixstars/ctf, sixstars/CTF
Analyze Nginx Log
1 official solutionAlso written up in: b01lers/writeups
Binary exploitation9
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
Nobug
4 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, scwuaptx/CTF, TycoRyco/write-ups-2015
Shaxian
4 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, scwuaptx/CTF, TycoRyco/write-ups-2015
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
- no-source
- pwn
- rop
Same technique in picoCTF: lockdown-horses, Guessing Game 1, vr-school
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
200 Welpwn
2 official solutionsAlso written up in: sixstars/ctf, sixstars/CTF
400 Shaxian
2 official solutionsAlso written up in: sixstars/ctf, sixstars/CTF
600 Keys
2 official solutionsAlso written up in: sixstars/ctf, sixstars/CTF
Also written up in: sixstars/ctf, sixstars/CTF
Reverse engineering5
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
- reverse engineering
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Not Sequence
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Old Driver
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Cryptography4
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.
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
- hash
- crypto
- xor
Same technique in picoCTF: Custom encryption, Guess My Cheese (Part 2), hashcrack
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Decode The File
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
- crypto
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
Uncategorised3
The upstream scoreboard did not say, so neither do we.
Survey
3 official solutionsAlso written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Analysis Nginx Log
1 official solutionAlso written up in: jclariviere/ctf-writeups
Rctf50
1 official solutionAlso written up in: tarafans/CTF-writeup