Open-source alternatives to Vulscan

Gowitness is a system for rendering web interfaces at scale to capture visual snapshots, HTTP metadata, and network scan results. It functions as a headless browser screenshot tool and a web surface mapper used to identify and visually document the attack surface of network ranges and URL lists. The tool includes a screenshot gallery server that provides a web-based interface for browsing, filtering, and managing a database of captures. It specifically serves as an Nmap target visualizer, parsing network scan results to automatically capture screenshots of discovered web services. Capabiliti

OpenSCA-cli is an open-source software composition analysis tool and vulnerability management command-line interface that inspects third-party dependencies for known security vulnerabilities and compliance risks. It parses package manager configuration and lock files across diverse programming languages to extract software component trees and generate standard inventory reports. The tool performs local vulnerability matching against embedded or downloaded databases without requiring external network connections, ensuring complete data privacy. It includes a license compliance engine that eval

The openvas-scanner is a vulnerability scanner designed to identify security weaknesses and outdated software in target systems. It performs network vulnerability scanning by executing security tests and network attack scripts, as well as conducting local security auditing through static version checks of installed software. The project utilizes community-managed feeds to synchronize and update local security definitions and vulnerability tests. These tests and scan configurations are loaded into the system via container images or manual transfers and stored in a persistent relational databas

OSV is a distributed database and aggregator of open-source security advisories that uses a standardized vulnerability schema to track security flaws. It functions as a system for collecting and normalizing security data from diverse ecosystems into a single unified format, providing a web API for querying package vulnerabilities and submitting standardized records. The project distinguishes itself through a security advisory distribution service that supports bulk dataset exports via cloud storage buckets and incremental synchronization of security record updates. It also employs sandbox-bas

cve-search is a vulnerability search engine and database manager designed to index, synchronize, and query CVE and CPE security vulnerability data. It functions as a security data warehouse that imports vulnerability feeds into a local database to enable fast, keyword-based discovery of security flaws. The project provides a web-based vulnerability browser and a programmatic JSON API for retrieving records and risk scores. It utilizes full-text indexing for vulnerability descriptions and implements an identity-verified security portal using the OpenID Connect standard for user authentication.

Dependency-Track is a software composition analysis tool and vulnerability management system designed to track dependencies and supply chain risk. It functions as a platform for ingesting and analyzing CycloneDX software bills of materials to identify known vulnerabilities and license compliance issues within third-party software components. The system distinguishes itself by mirroring external vulnerability databases locally to enable fast offline analysis and using VEX documents to differentiate between technical vulnerabilities and actual contextual risks. It also integrates with identity

kscan is a network security scanner and service fingerprinter used to discover active hosts and open ports. It functions as a network protocol analyzer and internal network mapper to identify reachable gateways and analyze the network surface area of target environments. The tool integrates external asset discovery by retrieving target hosts through external intelligence services and verifying their availability. It also operates as a credential brute force tool, testing authentication strength across multiple protocols using automated username and password dictionaries. The project covers n

This project is a set of specialized utilities for Windows vulnerability assessment and patch management auditing. It functions as a vulnerability scanner and exploit suggester that analyzes installed updates to identify missing security patches and their corresponding known vulnerabilities. The system distinguishes itself by matching missing updates against a consolidated vulnerability database to recommend specific publicly available exploits. It maintains accuracy by synchronizing remote security bulletins into a local database and cross-referencing identified gaps against official update

Windows-Exploit-Suggester is a security analysis tool designed to audit patch levels and identify vulnerabilities on Windows hosts. It functions as a vulnerability scanner and patch level auditor that compares installed system hotfixes against Microsoft security bulletins to detect missing updates. The project maps these missing security updates to known public exploits and available Metasploit modules. It uses a vulnerability database interface to download and query external security bulletin data, linking specific unpatched vulnerabilities to viable exploit vectors. The tool's capabilities

Detect and bypass web application firewalls and protection systems

RealiTLScanner is a TLS configuration scanner and network security auditor designed to identify security settings across IP addresses and domains. It functions as a target discovery tool that analyzes TLS configurations to find compatible endpoints and evaluate server security postures. The project distinguishes itself as a geolocation-enhanced network scanner, appending geographic location data and country codes to discovered security configurations using a local location database. This allows for the geographic mapping of servers by combining TLS scan results with GeoIP data. The tool supp

This project is a mobile network security auditor and IMSI catcher detector designed to identify fake base stations and surveillance hardware attempting to intercept mobile traffic. It functions as a radio interface analyzer and cellular tower mapping tool, monitoring connections to detect unauthorized network infrastructure. The system distinguishes itself by combining real-time threat level monitoring with the ability to identify silent SMS and stealth communications used for device tracking. It analyzes ciphering status to detect forced network downgrades to weaker encryption standards and

PRET is a network printer exploitation framework and security utility designed for discovering printing hardware and auditing firmware. It serves as a toolkit for penetrating printing infrastructure by manipulating printer-specific control languages and protocols. The project provides specialized capabilities for triggering remote code execution via buffer overflows and managing printer file systems using the Printer Job Language. It allows for the extraction of device metadata, such as firmware versions and memory resources, and the modification of hardware behaviors and system parameters.

PCredz is a network credential extraction tool and traffic analyzer designed to intercept passwords, hashes, and tokens from IPv4 and IPv6 traffic. It functions as both a real-time monitor for live network interfaces and a parser for saved packet capture files. The tool identifies sensitive information, including credit card numbers and authentication tokens, using protocol-aware parsing. It further acts as a password hash recovery utility by normalizing captured authentication hashes into specific syntaxes compatible with external recovery software. Capabilities include real-time traffic in

Micro8 is a security auditing knowledge base and penetration testing resource library. It serves as a curated collection of guides and documentation focused on vulnerability assessment. The project provides educational content and study guides for manual source code review, domain escalation, and internal network auditing. It includes a toolkit of reference materials for analyzing network traffic logs and identifying brute-force patterns. The library covers technical domains including web penetration testing and privilege escalation. It organizes these materials through PDF-based knowledge r

Hubble is an eBPF-based Kubernetes observability platform designed for network monitoring, security auditing, and flow inspection. It provides deep visibility into containerized traffic and cluster security by utilizing kernel-level hooks to collect network events. The system features a service map for visualizing communication patterns and dependencies between microservices and external endpoints. It incorporates identity-based flow labeling to track network traffic using Kubernetes labels rather than volatile IP addresses. The platform covers a broad range of monitoring capabilities, inclu

Vuls is an agentless vulnerability scanner and CVE intelligence aggregator. It identifies security flaws in operating systems, containers, and network devices without requiring the installation of permanent software agents on target machines. The project distinguishes itself by cross-referencing software versions against multiple vulnerability databases, security advisories, and known exploit catalogs. It utilizes platform-based enumeration and lockfile analysis to detect vulnerabilities in network hardware, programming libraries, and website plugins. The tool covers a broad range of securit

testssl.sh is a network security tool and SSL/TLS security scanner used to audit server configurations. It functions as a diagnostic utility that validates supported ciphers and protocols to identify cryptographic vulnerabilities and flaws in encrypted communication. The tool is available as both a command-line utility and a dockerized security scanner, allowing for execution in isolated environments without the need for local dependency installation. Its capabilities cover SSL configuration auditing and TLS server security analysis. The system exports scan results into structured reports a

This project is a comprehensive toolkit for Linux security auditing and system enumeration. It functions as a framework for identifying configuration weaknesses, gathering system information, and detecting vulnerabilities to assist in gaining higher administrative access levels on Linux systems. The toolkit includes specialized capabilities for version-based vulnerability scanning, which matches installed software against known affected releases, and time-window process monitoring to track recurring system patterns and periodic tasks. It also provides infrastructure for hosting and delivering

Cameradar is a network scanning tool designed to discover publicly accessible IP cameras. It identifies active Real Time Streaming Protocol services by scanning IP ranges and using device fingerprints to determine specific hardware models. The tool performs security auditing through dictionary-based probing and brute force attacks to uncover valid streaming paths and authentication credentials. It validates discovered streams by verifying the receipt of real-time transport protocol data packets to eliminate false positives. The system supports a multi-stage discovery pipeline and can export

Rengine is an automated reconnaissance framework and vulnerability management platform designed for attack surface monitoring. It functions as a centralized hub for discovering subdomains and open ports, gathering open-source intelligence, and tracking security flaws across target networks. The system integrates large language models to analyze reconnaissance data and generate vulnerability descriptions and insights. It distinguishes itself through a plugin-based tool integration that wraps external security scanning binaries and a target mapping system that tracks changes to assets over time

W13scan is an automated vulnerability assessment tool designed to identify security flaws in web applications through a modular plugin architecture. It functions as a scanning engine that executes specialized security logic against web endpoints to detect injection flaws, information leaks, and configuration errors. The platform distinguishes itself by combining active probing with passive traffic analysis and out-of-band detection. It utilizes a callback-based service to verify blind vulnerabilities that do not provide immediate feedback, and it operates as a proxy to intercept and inspect l

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

Amass is a network attack surface mapper and reconnaissance framework designed to discover and map the external, internet-facing infrastructure of a target organization. It functions as an open source intelligence tool that identifies public network boundaries and locates hidden or forgotten subdomains to define an organization's total reachable footprint. The project utilizes passive-source data aggregation from external APIs and public databases alongside active DNS brute-forcing and recursive subdomain expansion. It employs a graph-based asset mapping system to visualize the relationships

RustScan is a high-speed TCP network scanner written in Rust, designed for security reconnaissance and network mapping. It functions as an automated port discovery engine that identifies open ports on remote hosts using IPv6 addresses, CIDR ranges, or bulk input files. The tool is built for rapid surface area discovery, utilizing parallel port processing and OS-aware performance optimizations to identify active services. It allows for scan precision tuning through adjustable connection timeout thresholds and concurrent request controls to balance speed and accuracy. The system integrates wit

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

This project is a comprehensive technical documentation repository focused on Linux system administration, network security, and privacy-oriented computing. It provides a curated knowledge base of instructional guides and configuration tutorials designed to assist users in managing low-level system environments, kernel compilation, and bootloader setup. The repository distinguishes itself by emphasizing privacy engineering and infrastructure hardening. It offers detailed procedures for anonymizing network traffic, securing credentials, and isolating applications within a computing environment