# OneGadget

OneGadget is a Penetration Testing product. It runs on-premises. Pricing is free.

OneGadget is a CTF-focused tool that uses symbolic execution to find RCE gadgets in binaries that can execute shell commands through execve('/bin/sh', NULL, NULL).

Checked October 2026.

## What is OneGadget?

OneGadget is a specialized tool designed for CTF pwn challenges that identifies RCE (remote code execution) gadgets capable of executing execve('/bin/sh', NULL, NULL).

The tool employs symbolic execution techniques to analyze binary files and determine the constraints required for gadgets to function successfully. It supports multiple architectures including i386, amd64, and aarch64.

OneGadget provides a command-line interface with various options for customization. Users can specify build IDs, force file searches, control output verbosity levels, and order gadgets based on their proximity to specific functions or files.

The tool is distributed through RubyGems.org for easy installation and integration into security testing workflows. It focuses specifically on finding gadgets that can spawn shell access, making it particularly useful for exploit development and binary exploitation scenarios.

Tags: Reverse Engineering, CTF, Symbolic Execution, Exploit Development, RCE, Binary Analysis

## Quick facts

- Category: [Offensive Security](https://cybersectools.com/categories/offensive-security-testing) · [Penetration Testing](https://cybersectools.com/categories/pentesting-tools)
- Deployment: On-Premises
- Company size fit: Startup, SMB, Mid-Market, Enterprise
- Pricing model: Free
- GitHub stars: 2,303
- Website: github.com

## OneGadget FAQ

### What is OneGadget?

OneGadget is a product in the Penetration Testing category. It covers Reverse Engineering, CTF and Symbolic Execution.

### What is the pricing for OneGadget?

OneGadget is free. Download and setup instructions are at https://github.com/david942j/one_gadget/.

### What are alternatives to OneGadget?

Alternatives to OneGadget listed on CybersecTools:

1. [APX Labs Cipher XBOW Validation Benchmark](https://cybersectools.com/tools/apx-labs-cipher-xbow-validation-benchmark) - Public benchmark of Cipher AI pentesting agent vs. 104 XBOW challenges. (Commercial)
2. [OffSec Penetration Testing Services](https://cybersectools.com/tools/offsec-penetration-testing-services) (Commercial)
3. [XBOW Captcha Bypass Tool](https://cybersectools.com/tools/xbow-captcha-bypass-tool) - AI-powered automated penetration testing platform for vulnerability discovery (Commercial)
4. [Xiarch Binary Code Analysis](https://cybersectools.com/tools/xiarch-binary-code-analysis) - Binary code analysis service for security testing compiled applications (Commercial)
5. [Novee AI Pentesting](https://cybersectools.com/tools/novee-ai-pentesting) - AI-driven continuous penetration testing platform with automated remediation. (Commercial)

Compare all OneGadget alternatives at [https://cybersectools.com/alternatives/onegadget](https://cybersectools.com/alternatives/onegadget)

### What deployment and organization size does OneGadget fit?

OneGadget is available as on-premises software. It is listed for startups, small businesses, mid-market companies and enterprises. It is free.

## Compare OneGadget with similar solutions

- [OneGadget vs APX Labs Cipher XBOW Validation Benchmark](https://cybersectools.com/compare/apx-labs-cipher-xbow-validation-benchmark-vs-onegadget)
- [OneGadget vs OffSec Penetration Testing Services](https://cybersectools.com/compare/offsec-penetration-testing-services-vs-onegadget)
- [OneGadget vs XBOW Captcha Bypass Tool](https://cybersectools.com/compare/onegadget-vs-xbow-captcha-bypass-tool)

All alternatives to OneGadget: [/alternatives/onegadget](https://cybersectools.com/alternatives/onegadget)

---

Source: https://cybersectools.com/tools/onegadget

For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any compare page has a Markdown copy too (add .md to its URL).

More on OneGadget: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md