0CTF

# Nightfall Tempest Trials ## Overview The challenge provides: - `pk`: Kyber public key (K=12) - `ct`, `iv`: AES-256-CBC ciphertext and IV - `leaks`...

# perspective **Category:** reverse / misc **Prompt:** “An artist’s perspective is always unique” ## TL;DR The binary is a Windows x64 OpenGL/GL...

# ProAgent **TL;DR:** The service lets anyone point it at an arbitrary MCP server (`POST /config`). The agent also exposes an internal `read_file` tool that can read `/flag`. By hosting a malicious M

# JSHacker1 ## Challenge Summary We are given a bundled V8 `d8` binary and an obfuscated JS file. The service asks for a token via `nc instance.pengu...

# GhostDB - OoCTF Writeup ## Challenge Summary GhostDB is a toy database service written in V. The flag is awarded if a single session performs more ...

# chsys ## TL;DR The service runs a FreeBSD “base system environment manager” binary (`env_manager`) inside a jail. The binary builds shell commands ...

# baby_discriminator ## Challenge Overview We need to distinguish between two types of random vectors 200 times in a row to get the flag. - **Bit 1**: The vector (length 140) is completely random. Ea