CVE-2019-13983
📋 TL;DR
CVE-2019-13983 is a critical authentication vulnerability in Directus 7 API that allows attackers to bypass rate limiting and perform credential stuffing or brute force attacks due to insufficient anti-automation controls. This affects all users of Directus 7 API versions before 2.2.2. Attackers can exploit this to compromise user accounts and gain unauthorized access to the system.
💻 Affected Systems
- Directus 7 API
📦 What is this software?
Directus 7 Api by Rangerstudio
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through credential stuffing leading to admin account takeover, data exfiltration, and lateral movement within the environment.
Likely Case
User account compromise leading to unauthorized data access, privilege escalation, and potential data manipulation.
If Mitigated
Limited impact with proper monitoring and rate limiting in place, but still vulnerable to sophisticated attacks.
🎯 Exploit Status
Exploitation requires no authentication and can be automated with simple scripts. Public GitHub issues demonstrate the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2.2
Vendor Advisory: https://github.com/directus/api/issues/991
Restart Required: Yes
Instructions:
1. Backup your Directus installation. 2. Update to Directus 7 API version 2.2.2 or later. 3. Restart the Directus service. 4. Verify the fix is applied.
🔧 Temporary Workarounds
Implement Web Application Firewall (WAF) Rules
allConfigure WAF to enforce rate limiting on authentication endpoints
Add Custom Rate Limiting Middleware
allImplement custom rate limiting for /auth endpoints
🧯 If You Can't Patch
- Implement strong password policies and multi-factor authentication
- Monitor authentication logs for brute force patterns and implement alerting
🔍 How to Verify
Check if Vulnerable:
Check Directus version: if using Directus 7 API version < 2.2.2, you are vulnerableCheck Version:
Check Directus configuration or package.json for version informationVerify Fix Applied:
Verify Directus version is 2.2.2 or later and test authentication endpoints for rate limiting📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts from single IP
- Unusual authentication patterns
- High volume of POST requests to /auth endpoints
Network Indicators:
- High volume of authentication requests
- Traffic patterns indicating automated attacks
SIEM Query:
source="directus" AND (uri_path="/auth" OR uri_path="/auth/*") AND status=401 | stats count by src_ip