2019weight 23.50CInsects

CInsects CTF 2019

4 challenges with 6 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

Misc3

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

mongo-foo
1 writeup
Also written up in: ENOFLAG/writeups
- python
Same technique in picoCTF: PW Crack 2, PW Crack 1, PW Crack 3
python-foo
1 pts1 writeup
Also written up in: ENOFLAG/writeups
Same technique in picoCTF: PW Crack 2, PW Crack 1, PW Crack 3
bufcore
1 pts1 writeup
Same technique in picoCTF: PW Crack 2, Permissions, Specialer

Web1

Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.

Solve it with:JWT decoder and signature verifier JWT alg=none bypass generator Web attack payload catalog JWT secret brute force Learn: Sessions, tokens and access control

php-foo
1 writeup
Same technique in picoCTF: Live Art, secure-email-service, No FA

Misc3

mongo-foo

python-foo

bufcore

Web1

php-foo

Other 2019 events