2015weight 0.00MITRE Cyber Academy

STEM CTF: Cyber Challenge 2015

45 challenges with 125 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 CTFtime

Uncategorised30

The upstream scoreboard did not say, so neither do we.

Solve it with:Cipher identifier and automatic decoder Learn: Recognising encodings

0day Hunting
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Advanced Persistent Threats
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Automated Analysis Mistakes
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Cryptographic Algorithms
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Cyberville 500
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Doctor Message 300
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Gravity Falls 100
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Hacker Movies
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Hiding Information
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Holy Krabby Patty Mermaid Man 50
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Lottery
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Malware Categories
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
No Such Agency
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Nsa
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Nviso File Host
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Nviso Vault
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Owasp
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Scramble 100
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Security Conferences
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Security History
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Security History V2
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Security Organizations
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Security Software
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Security Terminology
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Security Terminology V2
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Sftp
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Software Vulnerabilities V1
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Static Analysis
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
That App
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
SlimShady 250
1 official solution
Also written up in: x64x6a/ctf-writeups

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.

Solve it with:Cipher identifier and automatic decoder Vigenere cipher solver with automatic key recovery RSA decryption and attack runner Wiener’s attack on small RSA private exponents In-browser hash cracker with rule transforms Learn: Classical ciphers and frequency analysis Learn: RSA and the parameters that break it

Crack The Hash
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Guess The Algorithm
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
One Way
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Gravity Falls
100 pts2 writeups
- crypto
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
Holy Krabby Patty, Mermaid Man!
50 pts2 writeups
- crypto
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
Doctor Message
300 pts1 writeup
- crypto
- doctor message
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC

Forensics5

Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.

Solve it with:File type identifier by magic bytes Magic byte and file signature table PCAP analyzer for CTF network forensics EXIF metadata viewer Learn: File forensics and carving Learn: Network forensics

Data Extraction
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Espionage
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Four Eyes
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Passwords
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
Wardriving
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015

Misc2

Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.

Solve it with:Brainfuck and esolang decoder Cipher identifier and automatic decoder Regex tester with match offsets and capture groups Learn: Recognising encodings

Cyberville
500 pts1 writeup
- city
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Srcamble
100 pts1 writeup
- scamble
- mitre
Same technique in picoCTF: PW Crack 2, Permissions, Specialer

Reverse engineering2

Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.

Solve it with:Strings extractor for binaries and blobs WebAssembly disassembler Java .class disassembler Python .pyc bytecode disassembler Learn: Binary exploitation

Crackme
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015
That Binary
3 official solutions
Also written up in: ctfs/write-ups-2015, AntiRootkit1/write-ups-2015, TycoRyco/write-ups-2015

Uncategorised30

0day Hunting

Advanced Persistent Threats

Automated Analysis Mistakes

Cryptographic Algorithms

Cyberville 500

Doctor Message 300

Gravity Falls 100

Hacker Movies

Hiding Information

Holy Krabby Patty Mermaid Man 50

Lottery

Malware Categories

No Such Agency

Nsa

Nviso File Host

Nviso Vault

Owasp

Scramble 100

Security Conferences

Security History

Security History V2

Security Organizations

Security Software

Security Terminology

Security Terminology V2

Sftp

Software Vulnerabilities V1

Static Analysis

That App

SlimShady 250

Cryptography6

Crack The Hash

Guess The Algorithm

One Way

Gravity Falls

Holy Krabby Patty, Mermaid Man!

Doctor Message

Forensics5

Data Extraction

Espionage

Four Eyes

Passwords

Wardriving

Misc2

Cyberville

Srcamble

Reverse engineering2

Crackme

That Binary

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