2020weight 23.62Al Capwn

Evlz CTF 3.0

4 challenges with 5 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

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

influenza
1 writeup
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
tveronica
1 writeup
Same technique in picoCTF: PW Crack 2, Permissions, Specialer

Reverse engineering1

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

Measles
150 pts2 writeups
- reverse
- engineering
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200

Uncategorised1

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

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

Covid
1 official solution
Also written up in: sajjadium/ctf-archives

Misc2

influenza

tveronica

Reverse engineering1

Measles

Uncategorised1

Covid

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