PerfectRoot

Escaping Seccomp Restrictions Using Uncommon Linux File-Handle Syscalls - PerfectRoot CTF

• zerofrost
• Pwn , Perfect root

This post walks through a hard rated Pwn challenge from PerfectRoot Ctf 2024. The binary has a buffer overflow and a restrictive seccomp filter. In this post, we will explore how to bypass these restrictions using alternative syscalls to get a file descriptor to the flag file and read its contents.