CVE-2023-24831
📋 TL;DR
CVE-2023-24831 is an authentication bypass vulnerability in Apache IoTDB Grafana Connector that allows attackers to log in without proper credentials. This affects all systems running IoTDB Grafana Connector versions 0.13.0 through 0.13.3. Attackers could gain unauthorized access to IoTDB data visualization and potentially underlying systems.
💻 Affected Systems
- Apache IoTDB Grafana Connector
📦 What is this software?
Iotdb by Apache
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full administrative access to IoTDB Grafana dashboards, allowing data exfiltration, data manipulation, and potential lateral movement to connected IoTDB databases and systems.
Likely Case
Unauthorized users access sensitive IoTDB metrics and visualization data, potentially exposing operational technology data, sensor readings, and industrial control system information.
If Mitigated
With proper network segmentation and access controls, impact is limited to the Grafana connector instance only, preventing access to backend IoTDB systems.
🎯 Exploit Status
The vulnerability allows authentication bypass, making exploitation straightforward once identified. No special tools or techniques required beyond basic HTTP requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.13.4
Vendor Advisory: https://lists.apache.org/thread/3dgvzgstycf8b5hyf4z3n7cqdhcyln3l
Restart Required: Yes
Instructions:
1. Stop the IoTDB Grafana Connector service. 2. Update to version 0.13.4 using your package manager or manual download. 3. Restart the connector service. 4. Verify authentication is now required.
🔧 Temporary Workarounds
Network Isolation
linuxRestrict network access to the Grafana connector to only trusted IP addresses
iptables -A INPUT -p tcp --dport [CONNECTOR_PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [CONNECTOR_PORT] -j DROP
Reverse Proxy Authentication
allPlace the connector behind a reverse proxy with authentication
🧯 If You Can't Patch
- Implement strict network access controls to limit connector access to trusted IPs only
- Monitor authentication logs for unauthorized access attempts and implement alerting
🔍 How to Verify
Check if Vulnerable:
Check the connector version via its web interface or configuration files. If version is between 0.13.0 and 0.13.3 inclusive, the system is vulnerable.Check Version:
Check connector configuration file or use: curl -s http://[CONNECTOR_HOST]:[PORT]/api/versionVerify Fix Applied:
Attempt to access Grafana connector without authentication. If access is denied, the fix is working.📡 Detection & Monitoring
Log Indicators:
- Successful authentication attempts without valid credentials
- Access from unexpected IP addresses
- Multiple failed login attempts followed by successful access
Network Indicators:
- HTTP requests to Grafana connector endpoints without authentication headers
- Unusual data export patterns from the connector
SIEM Query:
source="iotdb-connector" AND (event="login" AND result="success" AND NOT user="*")