Open Source Linux Security Software - Page 6
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Alertmanager
Prometheus Alertmanager
The Alertmanager handles alerts sent by client applications such as the Prometheus server. It takes care of deduplicating, grouping, and routing them to the correct receiver integrations such as email, PagerDuty, or OpsGenie. It also takes care of silencing and inhibition of alerts. Precompiled binaries for released versions are available in the download section on prometheus.io. Using the latest production release binary is the recommended way of installing Alertmanager. The current Alertmanager API is version 2. This API is fully generated via the OpenAPI project and Go Swagger with the exception of the HTTP handlers themselves. A HTML rendered version can be accessed and clients can be easily generated via any OpenAPI generator for all major languages. -
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Osquery
SQL operating system instrumentation and monitoring framework
Osquery is an operating system instrumentation framework for Windows, OS X (macOS), Linux, and FreeBSD. The tools make low-level operating system analytics and monitoring both performant and intuitive. Osquery exposes an operating system as a high-performance relational database. This allows you to write SQL queries to explore operating system data. With osquery, SQL tables represent abstract concepts such as running processes, loaded kernel modules, open network connections, browser plugins, hardware events or file hashes.Osquery queries your devices like a database. Osquery uses basic SQL commands to leverage a relational data-model to describe a device. Frequently, attackers will leave a malicious process running but delete the original binary on disk. This query returns any process whose original binary has been deleted, which could be an indicator of a suspicious process. -
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PDFRip
A multi-threaded PDF password cracking utility
A multi-threaded PDF password cracking utility equipped with commonly encountered password format builders and dictionary attacks. pdfrip is a fast multithreaded PDF password cracking utility written in Rust with support for wordlist-based dictionary attacks, date and number range bruteforcing, and a custom query builder for password formats. You can write your own queries like STRING{69-420} with the -q option which would generate a wordlist with the full number range. You can pass in an year as the input with the -d option which would bruteforce all 365 days of the year in DDMMYYYY format which is a pretty commonly used password format for PDFs. Just give a number range like 5000-100000 with the -n option and it would bruteforce with the whole range. -
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subfinder
Fast passive subdomain enumeration tool
Subfinder is a high-performance passive subdomain discovery tool built for fast and reliable asset enumeration. It focuses exclusively on collecting valid subdomains from a wide range of passive online sources, prioritizing accuracy and speed over intrusive scanning techniques. The project is widely used in bug bounty hunting, penetration testing, and attack surface mapping because it minimizes noise while producing actionable results. Its modular architecture allows users to enable dozens of data providers through API keys, expanding coverage as needed. Subfinder integrates easily into automation pipelines and CI workflows thanks to its clean command-line design and structured output formats. The tool is intentionally specialized, doing one job extremely well rather than attempting to be an all-in-one scanner. In practice, Subfinder serves as a foundational building block for modern reconnaissance stacks. -
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Antivirus Live CD
4MLinux fork including ClamAV scanner
Antivirus Live CD is an official 4MLinux fork including the ClamAV scanner. It's designed for users who need a lightweight live CD, which will help them to protect their computers against viruses. Ethernet, WiFi, PPP and PPPoE are supported by Antivirus Live CD to enable automatic updates of its virus signature databases. All partitions are mounted during the boot process so that they can be scanned by ClamAV. The Antivirus Live CD ISO images are fully compatible with UNetbootin, which can be used to create an easy-to-use Antivirus Live USB. -
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mendelson AS2
Implementation of the EDIINT AS2 protocol (RFC 4130)
mendelson AS2 is the JAVA-based open source EDIINT AS2 solution. Monitoring- and configuration GUI, async & sync MDN, signatures, encryption, TLS, web interface, pluggable into any servlet container, partner manager, certificate manager, data compression, optional profiles: MA, FN. Localized to Spanish, Italian, Portuguese, German, English, French, Polish -
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Buttercup Desktop
Cross-Platform Passwords & Secrets Vault
Buttercup for desktop is a beautifully-simple password manager designed to help manage your credentials. Buttercup uses very strong encryption to protect your sensitive details under a single master password - Feel free to use stronger and more complex passwords for each service and let Buttercup store them securely. Buttercup is free to download and use and is available for Windows, Mac and Linux. Use it alongside the browser extension and mobile app for a completely portable experience. Strong 256bit AES encrypted vaults that meet today's security standards. Rest assured that your credentials are safe. Easy-to-use interfaces with basic concepts make storing and finding your login details a piece of cake. Buttercup's software is free to download and use, forever. It's also available for all major platforms. -
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go-mitmproxy
mitmproxy implemented with golang
go-mitmproxy is a Golang implementation of mitmproxy that supports man-in-the-middle attacks and parsing, monitoring, and tampering with HTTP/HTTPS traffic. Parses HTTP/HTTPS traffic and displays traffic details via a web interface. Supports a plugin mechanism for easily extending functionality. Various event hooks can be found in the examples directory. HTTPS certificate handling is compatible with mitmproxy and stored in the ~/.mitmproxy folder. If the root certificate is already trusted from the previous use of mitmproxy, go-mitmproxy can use it directly. Map Remote and Map Local support. -
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MOSINT
An automated e-mail OSINT tool
MOSINT is the fastest OSINT Tool for emails. It helps you gather information about the target email. Email validation, check social accounts, check data breaches and password leaks, finding related emails and domains, scan Pastebin Dumps. Google Search and DNS Lookup. -
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motionEyeOS
A video surveillance OS for single-board computers
motionEyeOS is a Linux distribution that turns a single-board computer into a video surveillance system. The OS is based on BuildRoot and uses motion as a backend and motionEye for the frontend. Compatible with most USB cameras as well as with the Raspberry PI camera module. Motion detection with email notifications and working schedule. JPEG files for still images, AVI files for videos. Connects to your local network using ethernet or wifi. File storage on SD card, USB drive or network SMB share. Uploading of media files to cloud storage services (Google Drive, Dropbox), media files are visible in the local network as SMB shares. Media files can also be accessed through the built-in FTP server or SFTP server. -
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bWAPP
an extremely buggy web app !
bWAPP, or a buggy web application, is a free and open source deliberately insecure web application. bWAPP helps security enthusiasts, developers and students to discover and to prevent web vulnerabilities. bWAPP prepares one to conduct successful penetration testing and ethical hacking projects. What makes bWAPP so unique? Well, it has over 100 web bugs! It covers all major known web vulnerabilities, including all risks from the OWASP Top 10 project. The focus is not just on one specific issue... bWAPP is covering a wide range of vulnerabilities! bWAPP is a PHP application that uses a MySQL database. It can be hosted on Linux/Windows with Apache/IIS and MySQL. It is supported on WAMP or XAMPP. Another possibility is to download bee-box, a custom VM pre-installed with bWAPP. This project is part of the ITSEC GAMES project. You can find more about the ITSEC GAMES and bWAPP projects on our blog. For security-testing and educational purposes only! Cheers Malik Mesellem -
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mod_qos
Quality of service module for Apache httpd
mod_qos is a quality of service module for the Apache Web Server. It implements control mechanisms that can provide different priority to different requests and controls server access based on available resources. -
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Kubescape
Kubescape is an open-source Kubernetes security platform for your IDE
An open-source Kubernetes security platform for your clusters, CI/CD pipelines, and IDE that seperates out the security signal from the scanner noise. Kubescape is an open-source Kubernetes security platform, built for use in your day-to-day workflow, by fitting into your clusters, CI/CD pipelines and IDE. It serves as a one-stop-shop for Kubernetes security and includes vulnerability and misconfiguration scanning. You can run scans via the CLI, or add the Kubescape Helm chart, which gives an in-depth view of what is going on in the cluster. Kubescape includes misconfiguration and vulnerability scanning as well as risk analysis and security compliance indicators. All results are presented in context and users get many cues on what to do based on scan results. Targeted at the DevSecOps practitioner or platform engineer, it offers an easy-to-use CLI interface, flexible output formats, and automated scanning capabilities. -
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SCAP Security Guide
Security automation content in SCAP, Bash, Ansible, and other formats
The purpose of this project is to create security policy content for various platforms, Red Hat Enterprise Linux, Fedora, Ubuntu, Debian, SUSE Linux Enterprise Server (SLES), as well as products, Firefox, Chromium, JRE. We aim to make it as easy as possible to write new and maintain existing security content in all the commonly used formats. "SCAP content" refers to documents in the XCCDF, OVAL and Source DataStream formats. These documents can be presented in different forms and by different organizations to meet their security automation and technical implementation needs. For general use, we recommend Source DataStreams because they contain all the data you need to evaluate and put machines into compliance. The datastreams are part of our release ZIP archives. "Ansible content" refers to Ansible playbooks generated from security profiles. These can be used both in check-mode to evaluate compliance, as well as run-mode to put machines into compliance. -
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Zeek
Zeek is a powerful network analysis framework
Zeek has a long history in the open source and digital security worlds. Vern Paxson began developing the project in the 1990s under the name “Bro” as a means to understand what was happening on his university and national laboratory networks. Vern and the project’s leadership team renamed Bro to Zeek in late 2018 to celebrate its expansion and continued development. Zeek is not an active security device, like a firewall or intrusion prevention system. Rather, Zeek sits on a “sensor,” a hardware, software, virtual, or cloud platform that quietly and unobtrusively observes network traffic. Zeek interprets what it sees and creates compact, high-fidelity transaction logs, file content, and fully customized output, suitable for manual review on disk or in a more analyst-friendly tool like a security and information event management (SIEM) system. -
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X Certificate and Key management is an interface for managing asymetric keys like RSA or DSA. It is intended as a small CA for creation and signing certificates. It uses the OpenSSL library for the cryptographic operations. Please see the XCA homepage http://hohnstaedt.de/xca
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AWS Vault
A vault for securely storing and accessing AWS credentials
AWS Vault is a tool to securely store and access AWS credentials in a development environment. AWS Vault stores IAM credentials in your operating system's secure keystore and then generates temporary credentials from those to expose to your shell and applications. It's designed to be complementary to the AWS CLI tools, and is aware of your profiles and configuration in ~/.aws/config. By default, there is a dedicated Keychain for AWS credentials and Keychain prompts you when credentials are accessed. Beyond the strong storage-at-rest, aws-vault generates short-lived session-based credentials to expose to sub-processes and it encourages you to use the tool to run other tools, rather than exporting credentials to your environment. This means that rogue node.js packages have a harder time obtaining your credentials, and when they do, are limited to the lifetime of the session. -
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Flowsint
Graph-based OSINT investigation platform w visual relationship mapping
Flowsint is an open source OSINT investigation platform designed to help analysts explore and understand relationships between digital entities through a visual graph interface. The platform focuses on reconnaissance and open source intelligence workflows, enabling investigators to map connections between domains, IP addresses, organizations, individuals, and other data points. By presenting these relationships in an interactive graph, Flowsint allows users to quickly identify patterns, associations, and investigative leads that might be difficult to detect through traditional data analysis methods. The system includes automated enrichers that gather additional intelligence about entities such as domain records, social media profiles, network infrastructure, and cryptocurrency activity. Its modular architecture separates the frontend application, API server, core services, and enrichment modules, making the platform extensible and easier to expand with new investigative capabilities. -
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Hackingtool
ALL IN ONE Hacking Tool For Hackers
HackingTool by Z4nzu is a large collection (“all-in-one”) of tools and scripts for penetration testing / hacking / OSINT etc. It bundles many utilities (port scanners, payload injectors, web attack tools, phishing tools, wireless attack tools, reverse engineering, etc.) into a menu interface. Includes many individual tools, often wrappers or aggregations of existing well-known tools (e.g. port scanners, web attack tools, steganography, hash cracking etc.). A menu interface offering categories: reconnaissance, payload creation, wireless attacks, reverse engineering, exploit frameworks, etc. Users can pick which tool to run. It is intended more for “ethical / lab / educational” hacking contexts rather than production or stealth scenarios. It depends a lot on external tools, grants, and root privileges in many cases. -
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Keycloak
Identity and access management for modern applications and services
Add authentication to applications and secure services with minimum fuss. No need to deal with storing users or authenticating users. It's all available out of the box. You'll even get advanced features such as User Federation, Identity Brokering and Social Login. Keycloak is an open source Identity and Access Management solution aimed at modern applications and services. It makes it easy to secure applications and services with little to no code. Users authenticate with Keycloak rather than individual applications. This means that your applications don't have to deal with login forms, authenticating users, and storing users. Once logged-in to Keycloak, users don't have to login again to access a different application. This also applied to logout. Keycloak provides single-sign out, which means users only have to logout once to be logged-out of all applications that use Keycloak. -
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Mobile Verification Toolkit
Helps with conducting forensics of mobile devices
Mobile Verification Toolkit (MVT) is a collection of utilities to simplify and automate the process of gathering forensic traces helpful to identify a potential compromise of Android and iOS devices. It has been developed and released by the Amnesty International Security Lab in July 2021 in the context of the Pegasus project along with a technical forensic methodology and forensic evidence. MVT is a forensic research tool intended for technologists and investigators. Using it requires understanding the basics of forensic analysis and using command-line tools. This is not intended for end-user self-assessment. If you are concerned with the security of your device please seek expert assistance. Compare extracted records to a provided list of malicious indicators in STIX2 format. Generate JSON logs of extracted records, and separate JSON logs of all detected malicious traces. -
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OpenLogi
A native, local-first alternative to Logitech Options+
OpenLogi is a native, local-first alternative to Logitech Options+ for configuring supported Logitech mice. It is written in Rust and focuses on direct device control through HID++ rather than account-based cloud software. The app lets users remap buttons, adjust DPI, and configure SmartShift behavior without telemetry. Its current focus is macOS, with wired and Bluetooth mouse support becoming a central part of recent releases. OpenLogi is useful for people who want lightweight mouse customization without signing in or depending on Logitech’s official software stack. It is especially appealing to privacy-conscious users, power users, and developers who want transparent control over Logitech device settings. -
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Permify
Permify is an open-source authorization service
Permify is an open source authorization service for creating fine-grained and scalable authorization systems. With Permify, you can easily structure your authorization model, store authorization data in your preferred database, and interact with the Permify API to handle all authorization queries from your applications or services. Permify is inspired by Google’s consistent, global authorization system, Google Zanzibar. Our goal is to make Google's Zanzibar available to everyone and help them to build robust, flexible, and easily auditable authorization system that establishes a natural linkage between permissions across the business units, functions, and entities of an organization. -
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Shannon
Fully autonomous AI hacker to find actual exploits in your web apps
Shannon is an autonomous AI penetration testing system built to find and prove real, exploitable vulnerabilities in web applications rather than stopping at static warnings or best-guess alerts. It focuses on “proof by exploitation,” meaning it actively hunts for attack vectors in your code and then attempts to execute end-to-end exploits to demonstrate impact. The project blends source-aware analysis with automated web interaction so it can validate issues like injection flaws, authentication bypasses, and other exploitable paths in a way that resembles an actual attacker’s workflow. Instead of requiring you to manually reproduce findings, Shannon is designed to produce actionable evidence that a weakness can be weaponized, which helps teams prioritize what truly matters. It positions itself as a pre-attacker safety net, aiming to break your web app before someone else does and thereby reduce the gap between “potentially vulnerable” and “confirmed exploitable.” -
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Wi-Fi Cracking
Crack WPA Wi-Fi routers with Airodump-ng and Aircrack-ng Hashcat
Crack Wi-Fi networks that are secured using weak passwords. It is not exhaustive, but it should be enough information for you to test your own network's security or break into one nearby. Begin by listing wireless interfaces that support monitor mode. If you do not see an interface listed then your wireless card does not support monitor mode. Start listening to 802.11 Beacon frames broadcast by nearby wireless routers using your monitor interface. WPA/WPA2 uses a 4-way handshake to authenticate devices to the network. You don't have to know anything about what that means, but you do have to capture one of these handshakes in order to crack the network password. These handshakes occur whenever a device connects to the network. The final step is to crack the password using the captured handshake. If you have access to a GPU, it is highly recommended to use hashcat for password cracking.