2020weight 25.00OWASP-IL

AppSec-IL 2020 CTF

19 challenges with 29 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

Web13

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: Web attacks and session tokens

Bad Route
200 pts2 writeups
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Customer Service
200 pts2 writeups
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
goWAF
300 pts2 writeups
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Graphene
250 pts2 writeups
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Log Me Policy
200 pts2 writeups
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Mr.Voorhees
200 pts2 writeups
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Resume.yml
150 pts2 writeups
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
SomeVideos
400 pts2 writeups
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
HR Agency
250 pts1 writeup
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
JailBreak 2.0
450 pts1 writeup
- cloud
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Static
200 pts1 writeup
- cloud
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
StuckOverflow
500 pts1 writeup
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
WhoAmI
300 pts1 writeup
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3

Misc5

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

PingSweeper
450 pts2 writeups
- codereview
Same technique in picoCTF: Permissions, Specialer, Codebook
SMTPDebugger
500 pts2 writeups
- codereview
Same technique in picoCTF: Permissions, Specialer, Codebook
come-and-git-it-1
100 pts1 writeup
- devsecops
Same technique in picoCTF: Blame Game, Collaborative Development, Commitment Issues
come-and-git-it-2
350 pts1 writeup
- devsecops
Same technique in picoCTF: Blame Game, Collaborative Development, Commitment Issues
Township Leak
250 pts1 writeup
- codereview
Same technique in picoCTF: Permissions, Specialer, Codebook

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

GreatSuccess
250 pts1 writeup
- mobile
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300

Web13

Bad Route

Customer Service

goWAF

Graphene

Log Me Policy

Mr.Voorhees

Resume.yml

SomeVideos

HR Agency

JailBreak 2.0

Static

StuckOverflow

WhoAmI

Misc5

PingSweeper

SMTPDebugger

come-and-git-it-1

come-and-git-it-2

Township Leak

Reverse engineering1

GreatSuccess

Other 2020 events