Open-source alternatives to Kube Hunter

Naabu is a port scanner library and tool that probes hosts for open ports using SYN, CONNECT, and UDP methods to identify active services. It functions as a Go library for embedding port scanning into programs, and as a standalone tool that accepts targets as hostnames, IP addresses, CIDR ranges, or ASN numbers. The tool discovers live hosts before scanning, filters ports by range or top lists, and can integrate with Nmap for service version detection. The project distinguishes itself through its SYN-based port probing approach that sends TCP SYN packets and analyzes responses without complet

The Snyk CLI is a command-line security scanner that detects known vulnerabilities across open-source dependencies, proprietary application code, container images, and infrastructure-as-code configuration files. It also serves as a platform management tool, allowing users to configure organizations, users, SSO, and reporting from the terminal rather than the web dashboard. The CLI integrates directly into development workflows, enabling scanning within IDEs, build pipelines, and version control systems. It implements static analysis with interfile data flow analysis to find complex security f

Trivy is a comprehensive security scanner designed to identify vulnerabilities and misconfigurations across container images, filesystems, and infrastructure as code files. It functions as a software composition analysis tool and an infrastructure security scanner, providing automated checks for CI/CD pipelines and cloud environments to ensure the integrity of the software supply chain. The tool distinguishes itself through a modular, plugin-based architecture that allows for the independent inspection of diverse targets. It utilizes a declarative policy engine to evaluate configurations agai

Grype is a command-line security scanner designed to identify known vulnerabilities within container images, filesystems, and software manifests. It functions as a software composition analysis tool that detects security flaws in application components and open-source libraries to support supply chain security. The tool distinguishes itself by reconstructing the final state of container images through layered filesystem inspection and normalizing diverse package formats into a unified dependency graph. It maintains a local cache of security advisories synchronized from multiple upstream sourc

Nettacker is an automated penetration testing framework designed to orchestrate reconnaissance, port scanning, and vulnerability detection. It functions as a network reconnaissance tool and vulnerability scanner that identifies open ports, fingerprints services, and checks systems against databases of known security flaws. The framework distinguishes itself by combining a web application crawler for discovering hidden paths via fuzzing with a vulnerability management system that persists scan results in a database to track historical assessments. It also includes specialized capabilities for

Ethical-Hacking-Labs is a comprehensive cybersecurity training curriculum and lab suite designed for learning penetration testing, network analysis, and offensive security techniques. It provides a structured environment for practicing the full attack lifecycle, from initial reconnaissance and scanning to exploitation and post-compromise analysis. The project provides instructional materials and guided exercises that cover specific technical domains, including open source intelligence research and network security courseware. It includes a practical workbook for identifying system vulnerabili

Strix is an automated security research and vulnerability scanning platform that leverages language models to orchestrate complex security analysis tasks. It functions as a comprehensive framework for penetration testing and continuous security integration, allowing users to embed automated vulnerability research directly into development pipelines or execute it within isolated, containerized environments. The platform distinguishes itself through a multi-agent orchestration engine that coordinates specialized autonomous agents to perform parallel security assessments. By integrating LLM-agno

Tsunami Security Scanner is a network vulnerability scanner and security auditor designed to identify high-severity flaws across network assets. It functions as an asynchronous security probe engine that utilizes automated probes and specialized detection logic to find critical weaknesses and prioritize remediation efforts. The project is distinguished by a plugin-based scanning engine, which uses a modular architecture of interchangeable detection plugins to identify vulnerabilities. This extensibility allows for the development and integration of custom security plugins to expand the variet

Checkov is a static analysis tool and security scanner designed to identify misconfigurations in infrastructure as code, container images, and Kubernetes configurations. It functions as a cloud security posture tool, an SCA vulnerability scanner, and a secret scanning utility to prevent security breaches and version control leaks. The project distinguishes itself through deep graph analysis and variable resolution, allowing it to map relationships between interconnected resources and evaluate the final state of infrastructure attributes. It provides extensibility for defining custom security

Peirates - Kubernetes Penetration Testing tool

Dive is a command-line tool designed for the analysis and optimization of container images. It functions as a layered storage inspector, allowing users to decompose image manifests to examine individual filesystem layers and identify opportunities to reduce total image size. The tool features a filesystem diffing engine that calculates net changes between sequential layers to highlight redundant data and storage inefficiencies. Users interact with this data through a terminal-based dashboard that provides keyboard-driven navigation of complex file structures and layer metadata. By abstracting

This project is a security compliance tool and configuration auditor designed to evaluate Docker deployments against industry security benchmarks. It functions as a script-based scanner that identifies misconfigurations and vulnerabilities within both the host operating system and container settings. The tool specifically implements the Center for Internet Security standards for Docker to verify host and container configurations. It enables a hardening workflow by comparing system states against these standards to identify security gaps and document compliance status. The audit engine suppor

WinPwn is a Windows penetration testing framework designed for conducting internal security assessments and privilege escalation. It functions as a suite for Active Directory security auditing, credential extraction, and the execution of privilege escalation scripts. The toolset enables the automation of SMB relay attacks to intercept and reuse authentication hashes. It provides specialized capabilities for retrieving passwords and hashes from system memory, registries, and browsers using obfuscated techniques to avoid detection. The framework covers broad capability areas including domain a

Ladon is an internal network penetration scanner and vulnerability assessment tool designed to identify high-risk security flaws and assets across network segments. It operates as a fileless security scanner, executing its engine and modules directly in memory to avoid leaving a disk footprint on target systems. The project is distinguished by its integration as a plugin for command beacons, specifically within the Cobalt Strike framework. This allows for memory-resident network discovery and vulnerability detection. It further supports stealth operations through payload and script obfuscatio

Subfinder is a security reconnaissance framework designed for subdomain enumeration and attack surface management. It functions as a discovery engine that identifies and maps internet-exposed infrastructure, cloud-hosted assets, and network ranges to maintain a comprehensive inventory of an organization's digital footprint. The project distinguishes itself through a modular, template-driven scanning engine that executes security checks against discovered assets. It leverages cloud-native asset discovery to query provider APIs and infrastructure metadata, while supporting distributed agent orc

RouterSploit is an embedded device exploitation framework and vulnerability scanner designed to identify and exploit security flaws in networked embedded hardware and firmware. It provides a centralized toolkit for scanning for known weaknesses and common misconfigurations to gain unauthorized system access. The framework includes an architecture-specific payload generator to create custom binary payloads tailored to the target hardware. It also features an automated brute force tool that uses dictionary-based credential guessing to bypass authentication on hardware devices. The tool covers

Prowler is a multi-cloud security scanner and security posture management tool. It automates security and compliance assessments across multiple cloud environments to identify misconfigurations and vulnerabilities. The project provides a multi-cloud security analysis engine that operates as an automated auditor, evaluating infrastructure against industry-standard regulatory frameworks and security benchmarks. It features a cloud security visualization dashboard that uses a graph database to map cloud inventory and visualize potential attack paths. Capabilities include automated cloud infrast

reconftw is an attack surface management framework and reconnaissance workflow orchestrator designed to automate the discovery, mapping, and monitoring of external digital assets. It operates as a modular tool-chain pipeline that coordinates a sequence of security tools to perform intelligence gathering and vulnerability scanning. The project distinguishes itself through a cloud-native deployment model that parallelizes scanning workloads across a fleet of remote VPS instances to bypass local resource constraints. It utilizes container-based environment isolation to ensure consistent executio

This project is a comprehensive, curated directory of cybersecurity resources, software, and documentation designed to support system and network protection. It serves as a centralized knowledge base and index for security professionals, aggregating industry-standard practices and open-source tools across a wide range of technical domains. The repository distinguishes itself by providing a structured collection of methodologies and frameworks for security operations. It covers critical areas including threat intelligence, digital forensics, infrastructure auditing, and vulnerability assessmen

Kubernetes Goat is a security training environment designed for practicing the identification and exploitation of common vulnerabilities within an intentionally insecure cluster. It provides a controlled setting to simulate system exploitations, including container escapes, role misconfigurations, and server-side requests. The project utilizes scenario-based vulnerability deployment to create specific security flaws. It includes utilities for environment management that allow the cluster to be restored to a clean baseline by removing vulnerable scenarios, service accounts, and role bindings.

Clair is a container image vulnerability scanner and security analyzer. It performs static analysis of container images by matching package contents against vulnerability databases to identify security risks across different package formats and architectures. The project functions as both an image indexer and a vulnerability database manager. It processes container layers into intermediate representations to enable fast security lookups and synchronizes security metadata from multiple external sources to maintain a local registry. Capability areas include continuous security monitoring, whic

Faraday is a vulnerability management platform and security tool aggregator designed to centralize security findings from multiple scanners into a single dashboard. It utilizes a relational security database to catalog hosts, services, and security flaws, enabling users to track remediation and analyze organizational risk. The platform distinguishes itself through a plugin-based system that normalizes diverse security tool outputs into a unified data model. It supports deep integration with a wide array of scanners and CLI tools, intercepting shell command output or parsing report files to ag

Bearer is a static analysis security testing tool and privacy compliance auditor. It identifies security vulnerabilities, hard-coded secrets, and privacy risks in source code through static analysis and data flow tracing. The tool distinguishes itself by tracking the movement of sensitive data through code to identify leaks and by mapping personal and health-related information flows to generate evidence for privacy impact assessments. It also provides differential scanning for pull requests and uses fingerprint-based suppression to exclude known false positives from reports. The platform co

Kyverno is a Kubernetes policy engine and cloud native governance tool. It functions as a policy-as-code framework that validates, mutates, and generates resources to enforce security and governance standards within a cluster. The project distinguishes itself through a declarative policy model that utilizes native Kubernetes custom resource definitions, allowing policies to be managed as standard cluster objects without custom code. It provides specific security capabilities for container image verification and signature validation to ensure only trusted images are deployed. Its broader capa

Falco is an eBPF runtime security monitor and cloud native detection engine that identifies abnormal behavior and security threats across hosts and containers. It functions as a Linux kernel event auditor, capturing system calls and kernel events in real-time to detect malicious activity. The system distinguishes itself through a rule-based threat detection model that evaluates system activity against a library of community-maintained rules and custom security definitions. It enriches raw kernel events with container and Kubernetes metadata to provide observability into isolated environments

This project is a comprehensive command-line reference and toolkit designed for Linux system administration and network security assessment. It provides a collection of technical snippets and operational guides focused on managing remote environments, orchestrating shell sessions, and executing administrative tasks through native terminal utilities. The repository distinguishes itself by offering specialized techniques for stealthy operations and infrastructure manipulation. It covers methods for establishing encrypted tunnels to bypass firewalls, obfuscating process identities and command hi

Datree is a policy enforcement framework for Kubernetes that validates configurations against rules written in Rego, JSON Schema, or CEL. It operates as both a command-line tool for pre-deployment scanning and as a cluster-side admission webhook for real-time enforcement, integrating with CI/CD pipelines and continuous delivery tools like ArgoCD and FluxCD. The framework supports namespace-scoped policy mapping, allowing different policies to apply to different namespaces, and provides a skip annotation mechanism for selectively bypassing rules on individual resources or entire namespaces. It