Boston Key Party CTF 2017
62 challenges with 153 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 CTFtimeUncategorised19
The upstream scoreboard did not say, so neither do we.
Encrypt
6 official solutionsAlso written up in: HackThisSite/CTF-Writeups, osirislab/CTF-Solutions, bitsforeveryone/write-ups, HackThisCode/CTF-Writeups, TechSecCTF/writeups, zylopfa/CTF-Writeups
RSA Buffets
6 official solutionsAlso written up in: HackThisSite/CTF-Writeups, HackThisCode/CTF-Writeups, zylopfa/CTF-Writeups, HackThisSite/CTF-Writeups, HackThisCode/CTF-Writeups, zylopfa/CTF-Writeups
Mod Gsilvis Sponge Solver
3 official solutionsAlso written up in: HackThisSite/CTF-Writeups, HackThisCode/CTF-Writeups, zylopfa/CTF-Writeups
Memo Exploit300
2 official solutionsAlso written up in: DMArens/CTF-Writeups, DMArens/CTF-Writeups
Beat In The Box
1 official solutionAlso written up in: insuyun/CTF-writeup
Crypto350 Minesweeper
1 official solutionAlso written up in: aweinstock314/aweinstock-ctf-writeups
Also written up in: osirislab/CTF-Solutions
Decompiled Code
1 official solutionAlso written up in: ispoleet/ctf-writeups
Decrypt
1 official solutionAlso written up in: bitsforeveryone/write-ups
Also written up in: Naetw/CTF-write-up
Also written up in: vxresearch/ctf-writeups
Also written up in: p4-team/ctf
Also written up in: insuyun/CTF-writeup
Prudential
1 official solutionAlso written up in: bl4de/ctf
Qt Crack
1 official solutionAlso written up in: ispoleet/ctf-writeups
RSAfracCont
1 official solutionAlso written up in: bitsforeveryone/write-ups
Sss 200
1 official solutionAlso written up in: vxresearch/ctf-writeups
Tester
1 official solutionAlso written up in: p4-team/ctf
Wackusensor
1 official solutionAlso written up in: insuyun/CTF-writeup
Misc15
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Shattered 1
3 official solutionsAlso written up in: porpeeranut/CTF, R3dCr3sc3nt/BostonKeyParty2017, swapnilgm/CTF-Writeups
Shattered 2
3 official solutionsAlso written up in: porpeeranut/CTF, R3dCr3sc3nt/BostonKeyParty2017, swapnilgm/CTF-Writeups
- jail
- rbash
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Wackusensor 100
2 official solutionsAlso written up in: ctfs/write-ups-2017, vxresearch/ctf-writeups
Accelerated Zone 250
1 official solutionAlso written up in: ctfs/write-ups-2017
Artisinal Shoutboxes 200
1 official solutionAlso written up in: ctfs/write-ups-2017
Beat In A Box 150
1 official solutionAlso written up in: ctfs/write-ups-2017
Check
1 official solutionAlso written up in: R3dCr3sc3nt/BostonKeyParty2017
Check 1
1 official solutionAlso written up in: ctfs/write-ups-2017
Prudentialv2 50
1 official solutionAlso written up in: ctfs/write-ups-2017
Prudentialv2 50 pts
1 official solutionAlso written up in: porpeeranut/CTF
Prudentialv2 Cloud 50
1 official solutionAlso written up in: bl4de/ctf
Qt Crackme 250
1 official solutionAlso written up in: ctfs/write-ups-2017
Slow 450
1 official solutionAlso written up in: ctfs/write-ups-2017
Supercomputer 450
1 official solutionAlso written up in: ctfs/write-ups-2017
Binary exploitation12
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: irGeeks/ctf, irGeeks/ctf, shift-crops/CTFWriteups, toomanybananas/ctf_solutions, www.amn3s1a.com
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Also written up in: briansp8210/CTF-writeup, Mike-Macelletti/ctf-writeups, sebel1010/ctf-writeups, willtuna/CTF-writeup, briansp8210/CTF-writeup, insuyun/CTF-writeup, willtuna/CTF-writeup
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Also written up in: p4-team/ctf, birdsoup/CTF-Writeups, xPowerz/CTF-Writeups, yous.be
- pwn
- escape
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Also written up in: Jinmo/ctfs
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Memo 300
2 official solutionsAlso written up in: ctfs/write-ups-2017, SPRITZ-Research-Group/ctf-writeups
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Barewithme 750
1 official solutionAlso written up in: ctfs/write-ups-2017
Hiddensc 200
1 official solutionAlso written up in: ctfs/write-ups-2017
Signed Shell Server 200
1 official solutionAlso written up in: ctfs/write-ups-2017
Solitary Confinement 99
1 official solutionAlso written up in: ctfs/write-ups-2017
Vimjail 150
1 official solutionAlso written up in: ctfs/write-ups-2017
Cryptography10
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: p4-team/ctf, HackThisSite/CTF-Writeups, HackThisCode/CTF-Writeups, zylopfa/CTF-Writeups, p4-team/ctf, insuyun/CTF-writeup
- crypto
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
Also written up in: p4-team/ctf, bitsforeveryone/write-ups, R3dCr3sc3nt/BostonKeyParty2017, insuyun/CTF-writeup
- rsa
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, john_pollard
Also written up in: ctfs/write-ups-2017, aweinstock314/aweinstock-ctf-writeups
- crypto
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
- crypto
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
Sponge 200
2 official solutionsAlso written up in: ctfs/write-ups-2017, vxresearch/ctf-writeups
Minesweeper 350
1 official solutionAlso written up in: ctfs/write-ups-2017
Multi Party Computation 250
1 official solutionAlso written up in: ctfs/write-ups-2017
Rsa Buffet 150
1 official solutionAlso written up in: ctfs/write-ups-2017
RSA Buffet 150 pts
1 official solutionAlso written up in: porpeeranut/CTF
Sidh Rsa Aes128 Gcm Sha256 600
1 official solutionAlso written up in: ctfs/write-ups-2017
Web3
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: HackThisSite/CTF-Writeups, HackThisCode/CTF-Writeups, R3dCr3sc3nt/BostonKeyParty2017, swapnilgm/CTF-Writeups, TechSecCTF/writeups, zylopfa/CTF-Writeups, KevOrr/ctf-writeups, swapnilgm/CTF-Writeups, l4ser.github.io
- web
Same technique in picoCTF: Live Art, secure-email-service, No FA
- web
Same technique in picoCTF: Live Art, secure-email-service, No FA
- cloud
Same technique in picoCTF: Live Art, secure-email-service, No FA
Reverse engineering3
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: Jinmo/ctfs, ispoleet/ctf-writeups
- rev
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Also written up in: p4-team/ctf
- re
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Qt Crackme (Rev 250)
1 official solutionAlso written up in: r2s4x.github.io