CVE-2024-8181
📋 TL;DR
An authentication bypass vulnerability in Flowise version 1.8.2 allows remote unauthenticated attackers to access administrator API endpoints and restricted functionality. This affects all deployments running the vulnerable version without additional authentication controls.
💻 Affected Systems
- Flowise
📦 What is this software?
Flowise by Flowiseai
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise where attackers gain administrative access, potentially leading to data theft, system manipulation, or deployment of malicious components.
Likely Case
Unauthorized access to sensitive data, configuration changes, and potential privilege escalation within the Flowise environment.
If Mitigated
Limited impact if proper network segmentation, API gateway controls, and additional authentication layers are implemented.
🎯 Exploit Status
Authentication bypass vulnerabilities typically have low exploitation complexity, especially when unauthenticated access is possible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.3 or later
Vendor Advisory: https://github.com/FlowiseAI/Flowise
Restart Required: Yes
Instructions:
1. Backup your Flowise configuration and data. 2. Update Flowise to version 1.8.3 or later using your deployment method (Docker, npm, etc.). 3. Restart the Flowise service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict access to Flowise API endpoints using firewall rules or network segmentation
Reverse Proxy Authentication
allImplement authentication at the reverse proxy/load balancer level before requests reach Flowise
🧯 If You Can't Patch
- Implement network-level access controls to restrict Flowise API access to trusted IPs only
- Deploy a web application firewall (WAF) with authentication bypass detection rules
🔍 How to Verify
Check if Vulnerable:
Check Flowise version via web interface or by examining the deployment configuration. Version 1.8.2 is vulnerable.Check Version:
Check Flowise web interface or run: docker inspect flowise | grep VERSION or check package.json for versionVerify Fix Applied:
Verify Flowise version is 1.8.3 or later and test authentication requirements for API endpoints.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access to admin API endpoints
- Authentication bypass attempts
- Unusual admin activity from new IPs
Network Indicators:
- Direct API calls to admin endpoints without authentication headers
- Unusual traffic patterns to Flowise API
SIEM Query:
source="flowise" AND (uri_path="/api/v1/admin/*" OR uri_path="/api/admin/*") AND NOT (auth_token EXISTS OR authorization EXISTS)