CVE-2022-23206
📋 TL;DR
This vulnerability allows unprivileged users to perform port scanning on internal networks via Apache Traffic Control Traffic Ops. Attackers can send specially crafted POST requests to the /user/login/oauth endpoint to scan ports on servers reachable by Traffic Ops. Organizations running vulnerable versions of Traffic Ops with internet-facing instances are affected.
💻 Affected Systems
- Apache Traffic Control Traffic Ops
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers map internal network infrastructure, identify vulnerable services, and launch targeted attacks against discovered systems, potentially leading to full network compromise.
Likely Case
Attackers perform reconnaissance to identify open ports and services on internal servers, enabling follow-up attacks and data exfiltration.
If Mitigated
Limited to port scanning capabilities without direct access to scanned systems, though still provides valuable reconnaissance data to attackers.
🎯 Exploit Status
Exploitation requires only HTTPS access to Traffic Ops and knowledge of the vulnerable endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.1.0 or 5.1.6
Vendor Advisory: https://lists.apache.org/thread/lsrd2mqj29vrvwsh8g0d560vvz8n126f
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Upgrade to Traffic Ops version 6.1.0 or 5.1.6. 3. Restart the Traffic Ops service. 4. Verify the upgrade was successful.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict access to Traffic Ops HTTPS endpoint to trusted IP addresses only
# Example using iptables
sudo iptables -A INPUT -p tcp --dport 443 -s TRUSTED_IP_RANGE -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 443 -j DROP
Endpoint Blocking
allBlock access to the vulnerable /user/login/oauth endpoint using web application firewall or reverse proxy
# Example nginx configuration
location /user/login/oauth { deny all; }
🧯 If You Can't Patch
- Implement strict network segmentation to limit Traffic Ops server's ability to reach internal systems
- Deploy intrusion detection systems to monitor for port scanning activity from the Traffic Ops server
🔍 How to Verify
Check if Vulnerable:
Check Traffic Ops version; if below 6.1.0 (for major version 6) or 5.1.6 (for major version 5), the system is vulnerable.Check Version:
Check the Traffic Ops web interface or configuration files for version informationVerify Fix Applied:
Confirm Traffic Ops version is 6.1.0 or higher, or 5.1.6 or higher for version 5.x, and test that POST requests to /user/login/oauth no longer allow port scanning.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /user/login/oauth endpoint
- Multiple failed authentication attempts from single IP
- Traffic Ops server making unexpected outbound connections
Network Indicators:
- Traffic Ops server initiating connections to multiple internal ports
- Unusual scanning patterns originating from Traffic Ops server IP
SIEM Query:
source="traffic_ops_logs" AND uri_path="/user/login/oauth" AND http_method="POST" AND response_code=200 | stats count by src_ip