Buffer Overflow (BoF / ROP)

Cross-platform resources for Buffer Overflow (BoF / ROP): curated HTB machines, PortSwigger labs and TryHackMe rooms with validated writeups and related skills.

Buffer Overflow (BoF / ROP)

This page aggregates cross-platform resources to practice Buffer Overflow (BoF / ROP): retired Hack The Box machines, PortSwigger Web Security Academy labs and TryHackMe rooms, plus curated resources (HackTricks, PortSwigger, etc.) and related skills.

Curated resources

Source	Link
HackTricks	https://book.hacktricks.wiki/en/binary-exploitation/stack-overflow/index.html

HTB machines practicing Buffer Overflow (BoF / ROP) (12)

Machine	OS	Difficulty
Buff	Windows	EASY
Chatterbox	Windows	MEDIUM
Ellingson	Linux	HARD
Enterprise	Linux	MEDIUM
Hancliffe	Windows	HARD
Jail	Linux	INSANE
Node	Linux	MEDIUM
October	Linux	MEDIUM
Overflow	Linux	HARD
RedCross	Linux	MEDIUM
Retired	Linux	MEDIUM
Safe	Linux	EASY

TryHackMe rooms practicing Buffer Overflow (BoF / ROP) (8)

Room	Difficulty	Type	Access	Official
Sudo Buffer Overflow	INFO	Walkthrough	🟢 Free	Open
Advent of Cyber 2023	EASY	Walkthrough	🟢 Free	Open
Buffer Overflows	EASY	Walkthrough	🔵 VIP	Open
Flag Vault	EASY	Challenge	🔵 VIP	Open
Intro To Pwntools	EASY	Walkthrough	🟢 Free	Open
NoNameCTF	MEDIUM	Challenge	🔵 VIP	Open
ret2libc	MEDIUM	Walkthrough	🟢 Free	Open
Brainpan 1	HARD	Challenge	🔵 VIP	Open

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Last updated: 2026-05-09