Ropgadget

ROPgadget

Fast gadget discovery for exploit development and mitigations-aware binary triage.

When to use ROPgadget

Use ROPgadget when you need to:

• enumerate pop, ret, pivot, syscall, or call-oriented gadgets
• filter gadgets around bad-byte, depth, or architecture constraints
• get a fast first-pass view before building a manual chain
• compare gadget availability across the main binary and loaded libraries

Quick Start

# Basic gadget dump
ROPgadget --binary ./chall

# Common x86-64 stack-control gadgets
ROPgadget --binary ./chall --only "pop|ret"

# Try automatic chain generation when the target is simple
ROPgadget --binary ./chall --ropchain

High-Value Workflows

Focus on useful gadget families

ROPgadget --binary ./chall --only "pop|ret"
ROPgadget --binary ./chall --only "syscall|sysenter|int 0x80"
ROPgadget --binary libc.so.6 --only "mov|call|jmp"

Reduce noisy results

ROPgadget --binary ./chall --depth 6
ROPgadget --binary ./chall --badbytes "00|0a|0d"
ROPgadget --binary ./chall --range 0x400000-0x401000

Cross-check a suspected pivot area

ROPgadget --binary ./chall --only "leave|xchg|add rsp|sub rsp|ret"

Practical Notes

• Treat --ropchain as a convenience feature, not a proof of exploitability.
• Build from ABI requirements first, then search for the minimum gadget set that satisfies them.
• Re-verify gadget addresses after PIE/libc-base calculations; static addresses are rarely the final story.
• Pair with one-gadget for libc post-leak options and with gdb for runtime validation.

Caveats

• Gadget quality still needs human review for side effects, clobbers, and alignment.
• Very noisy binaries benefit from tighter --only, --range, or smaller depth settings.
• CET, Shadow Stack, CFG, or tight seccomp policies can make a nice gadget list operationally irrelevant.

Resources

No bundled scripts/, references/, or assets/. Use the upstream README for architecture support, output formats, and advanced filters.