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8888  888R    beWE "888L  "**"  x88888~ 
8888  888R    888E  888E       d8888*`  
8888  888R    888E  888E     z8**"`   : 
8888 ,888B .  888E  888F   :?.....  ..F 
"8888Y 8888"  .888N..888    ""888888888~ 
`Y"   'YP     `"888*""    8:  "888888*  
               ""       ""    "**"`     

• Published on

  Sep 9, 2025

  Name

  chstx64

  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.

  Read more →

• Published on

  Sep 9, 2025

  Name

  chstx64

  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.

  Read more →