Announcement
CrowdSec - Open-Source & Participative Security Automation
CrowdSec is the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world Cyber Threat Intelligence (CTI).
Project Introduction
Summary
CrowdSec is a free, modern, and collaborative intrusion prevention system. It analyzes logs to detect attacks and uses a consensus mechanism to share threat information across the network, effectively creating a distributed, real-time CTI database.
Problem Solved
Traditional security approaches often rely on static rules or delayed threat intelligence. CrowdSec addresses this by providing real-time, behavior-based detection and leverages the collective intelligence of its user base to offer up-to-date protection against emerging threats.
Core Features
Behavior Detection Engine
Detects malicious behavior by analyzing logs from various services (SSH, web servers, databases, etc.).
Scenario Definition
Allows operators to define granular rules for blocking or mitigating threats.
Crowdsourced IP Intelligence
Automatically shares detected threats with the CrowdSec community network.
Remediation Components
Integrates with various firewalls and security tools to enforce blocklists.
Tech Stack
Use Cases
CrowdSec can be deployed in various environments to provide robust, community-powered threat protection:
Securing Web Servers
Details
Protecting web servers (Nginx, Apache, Caddy) from brute-force attacks, vulnerability scans, and other web-based threats by analyzing web server logs and blocking malicious IPs.
User Value
Reduces server load from malicious traffic and prevents successful web attacks.
Distributed Server Protection
Details
Deploying CrowdSec agents on multiple servers or endpoints to detect malicious activity and leverage the shared CTI network for collective defense.
User Value
Creates a more resilient defense system where threat intelligence is shared and acted upon instantly across the infrastructure.
Automated Firewalling
Details
Integrating CrowdSec with firewalls (e.g., iptables, pfSense, OPNsense, Cloudflare) to automatically block IPs identified as malicious by the community or local detection engine.
User Value
Provides dynamic, threat-aware firewall rules that update automatically, offering protection against a wider range of threats than static rules.
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