Writeups Index

There are all my CTF sploits derived by categories and topics

PWN

Buffer Overflow

• BOF → UTCTF 2025. secbof

  ...Simply Buffer Overflow with ROP and seccomp. Seccomp allows us to use open, read, write and exit...

Fromat String

• rbp-rbp-rbp → Volga CTF 2025 Qualifier. Baby-Welcome

  ...Classic format string vuln... rewrite function's rbp and point it to our ROP payload on the stack...

Heap

• Double Free → Srdnlen CTF 2025. Kinderheim 511

  ...the memory (chunk) is freed in the heap, but the memory (chunk) address is not zeroed in the memories list...

Shellcoding

• Length limitations → Volga CTF 2025 Qualifier. sbsbx

  ...sequential reading of three shellcodes with length limitations. Seccomp denies us to use read, execve and execveat...