CVE-2025-26864
📋 TL;DR
Apache IoTDB's OpenIdAuthorizer component logs sensitive authentication information, potentially exposing credentials or tokens to unauthorized actors. This affects all users running vulnerable versions of Apache IoTDB. Attackers with access to log files could obtain authentication secrets.
💻 Affected Systems
- Apache IoTDB
📦 What is this software?
Iotdb by Apache
Iotdb by Apache
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain access to authentication credentials or tokens, leading to full system compromise, data theft, or privilege escalation within the IoTDB environment.
Likely Case
Unauthorized actors with log file access extract sensitive authentication information, potentially enabling further attacks against the IoTDB system or connected systems.
If Mitigated
With proper log file permissions and access controls, exposure is limited to authorized administrators only.
🎯 Exploit Status
Exploitation requires access to log files containing sensitive information
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.4 or 2.0.2
Vendor Advisory: https://lists.apache.org/thread/2kcjnlypppk8qjh17dpz0jvkcpn6l162
Restart Required: Yes
Instructions:
1. Download Apache IoTDB version 1.3.4 or 2.0.2 from official sources. 2. Stop the IoTDB service. 3. Backup configuration and data. 4. Replace with patched version. 5. Restart IoTDB service.
🔧 Temporary Workarounds
Restrict log file permissions
linuxSet strict file permissions on IoTDB log directories to prevent unauthorized access
chmod 600 /path/to/iotdb/logs/*
chown iotdb:iotdb /path/to/iotdb/logs/*
Disable OpenIdAuthorizer logging
allConfigure logging to exclude sensitive authentication information from logs
Modify log4j2.xml to set OpenIdAuthorizer logging level to ERROR or higher
🧯 If You Can't Patch
- Implement strict access controls on log directories and files
- Monitor log files for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check IoTDB version using version command or configuration filesCheck Version:
./sbin/start-cli.sh -v or check pom.xml/version fileVerify Fix Applied:
Verify installed version is 1.3.4 or higher (for 1.x) or 2.0.2 or higher (for 2.x)📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to log files
- Sensitive authentication strings appearing in log entries
Network Indicators:
- Unusual access patterns to log file locations
SIEM Query:
source="iotdb_logs" AND (event_type="authentication" AND message="*token*" OR message="*credential*")