CTF Write-ups

This tag contains all posts related to CTF challenges, including write-ups, solutions, and techniques.

Published on
Sep 9, 2025
CTF Write-up: Pyjail (misc)
CTF Write-ups
Bypassing eval-based restrictions, reconstructing forbidden strings, escaping a builtins blacklist, and exploiting memory manipulation to defeat privilege dropping and read the flag.
Published on
Sep 9, 2025
CTF Write-up: Slippy (Web)
CTF Write-ups
Walkthrough of the Slippy web challenge — abusing symlink extraction in ZIP uploads to escape the sandbox and retrieve the flag.