Open-source alternatives to Ssh Auditor

LaZagne is a cross-platform credential recovery tool designed to extract passwords and secrets from operating systems, browsers, and applications. It functions as a security utility for retrieving stored credentials from compromised systems during penetration testing. The tool provides capabilities for decrypting domain credentials and extracting sensitive data from system storage, including memory dumps, credential managers, keychains, and password hashes. It recovers stored passwords from common software by accessing plaintext files, APIs, and local databases. The project supports digital

Utility for configuring Windows 10 built-in Defender antivirus settings.

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

Robot Vulnerability Database. An archive of robot vulnerabilities and bugs.

Find security vulnerabilities, compliance issues, and infrastructure misconfigurations early in the development cycle of your infrastructure-as-code with KICS by Checkmarx.

Lynis is an automated security auditing and system hardening framework designed for UNIX-based operating systems. It functions as a command-line utility that inspects local system configurations to identify security vulnerabilities, configuration weaknesses, and compliance gaps. By executing a series of modular tests, the tool generates actionable reports and remediation suggestions to assist in strengthening system defenses. The project distinguishes itself through a highly modular architecture that relies on shell-script-based execution and native system inspection. Users can define custom

Secure your Docker builds against supply chain attacks — restrict outbound network access to only the domains you allow

ThreatMapper is a cloud native application protection platform and infrastructure security scanner. It functions as a vulnerability management system and cloud workload telemetry collector designed to monitor workloads and detect security risks across cloud and container environments. The platform distinguishes itself through a network traffic visualizer that uses machine learning to classify communication patterns and a graph-based attack mapping system to identify high-risk paths between vulnerabilities and network dependencies. Its broader capabilities cover cloud infrastructure complianc

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

Static analysis from configs → Kubernetes NetworkPolicies in seconds

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

Fail2ban is an intrusion prevention system that monitors system log files to detect malicious activity and automatically enforce security policies. By parsing log data in real time, the tool identifies patterns of unauthorized access or repeated authentication failures and responds by dynamically updating network access control lists to restrict offending sources. The software functions as a firewall automation tool that maintains stateful tracking of suspicious behavior across various network services. It utilizes a regex-driven pattern matching engine to identify specific attack signatures,

Mimikatz is a security research suite designed for auditing Windows authentication and managing system security configurations. It provides a comprehensive framework for extracting sensitive credentials, manipulating process privileges, and managing digital identity assets directly from system memory or offline memory dumps. The project distinguishes itself through advanced system-level exploitation techniques, including runtime process injection, API hooking, and the ability to bypass cryptographic export restrictions. It features a specialized toolkit for Kerberos protocol operations, allow

Container Explorer (built as ce) is a standalone Go utility for exploring, analyzing, and performing forensics on container runtimes (such as containerd, Docker, and Podman).

gopass is a terminal-based password manager and GPG secret store used for generating, storing, and retrieving encrypted credentials. It functions as a collaborative secret manager that encrypts data using GPG or age and synchronizes it across devices and teams using Git. The system distinguishes itself by treating version control repositories as the primary storage backend, enabling secure secret sharing and version history for credentials. It utilizes a hierarchical directory structure to organize secrets on the filesystem and supports multi-store mounting to combine multiple independent rep

Legion is an open source, easy-to-use, super-extensible and semi-automated network penetration testing tool that aids in discovery, reconnaissance and exploitation of information systems.

Hashcat is a high-performance hash cracking software and OpenCL compute application used to recover plain-text passwords from hashed data. It functions as a GPU-accelerated recovery tool and distributed password cracker, leveraging CPUs and GPUs to perform intensive cryptographic computations. The system differentiates itself through a distributed cracking workflow that coordinates tasks across multiple machines via an overlay network to share computational load. It further optimizes recovery speed using Markov chain keyspace optimization to prioritize the most likely password candidates. Th

Vault is a centralized secrets management platform designed to secure, store, and control access to sensitive credentials such as API keys, passwords, certificates, and encryption keys. At its core, the system employs a barrier-based cryptographic sealing mechanism that requires an unseal process to decrypt internal storage, ensuring that sensitive data remains protected. It provides identity-based access control to manage granular permissions across distributed infrastructure, effectively centralizing security policies and authentication for both human and machine workloads. What distinguish

CetusGuard is a tool that protects the Docker daemon socket by filtering calls to its API endpoints.

The Proxmox Hardening Guide project provides structured, actionable recommendations to secure Proxmox Virtual Environment (PVE 9.x & 8.x) and Proxmox Backup Server (PBS 4.x & 3.x).

DefaultCreds-cheat-sheet is a searchable reference database of default usernames and passwords for thousands of hardware and software products, designed for use during security assessments. It functions as a curated directory that maps vendor products to their known factory-set login credentials, enabling rapid lookup during penetration testing and security preparation workflows. The tool is delivered as a single-file client application with no backend dependencies, serving static content from any web server or local file system for offline use. It stores credential mappings in a flat JSON da

This project is a Linux server security guide and system administration manual designed to harden the operating system and kernel. It functions as an OS hardening checklist and a collection of instructions for reducing the server attack surface to protect against intruders. The guide covers the establishment of a server security baseline and the reduction of the network attack surface. It provides practical guidance for managing system permissions and network configurations to maintain a secure environment. The content is organized as a series of step-by-step procedural layouts and topic-cat

A repository of tools for pentesting of restricted and isolated environments.

The dependency-check repository has moved:

CrackMapExec is a network penetration testing framework and automated security scanner designed to assess security postures across large IP ranges. It functions as a multi-protocol security scanner and network protocol auditor used to identify vulnerabilities and misconfigurations. The tool provides capabilities for Active Directory auditing to enumerate users and permissions, as well as post-exploitation enumeration to gather system metadata and discover lateral movement paths. It includes a framework for credential spraying and harvesting across various network services. The system utilize