CVE-2023-49068
📋 TL;DR
Apache DolphinScheduler versions before 3.2.1 expose sensitive information to unauthorized actors through improper log handling. This vulnerability allows attackers to access confidential data that should be restricted to trusted operators. All users running affected versions are at risk.
💻 Affected Systems
- Apache DolphinScheduler
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain access to sensitive credentials, API keys, or configuration data leading to complete system compromise or data breach.
Likely Case
Unauthorized users access operational logs containing sensitive system information, potentially enabling further attacks.
If Mitigated
Only trusted operators can access logs, limiting exposure to authorized personnel with proper access controls.
🎯 Exploit Status
Exploitation requires access to log files, which may be accessible through web interfaces or file system access depending on deployment.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.1
Vendor Advisory: https://lists.apache.org/thread/jn6kr6mjdgtfgpxoq9j8q4pkfsq8zmpq
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download Apache DolphinScheduler 3.2.1 from official sources. 3. Stop the DolphinScheduler service. 4. Replace installation with new version. 5. Restore configuration. 6. Start the service.
🔧 Temporary Workarounds
Restrict Log File Access
linuxConfigure file system permissions to ensure only trusted operators can access DolphinScheduler log files.
chmod 600 /path/to/dolphinscheduler/logs/*
chown dolphinscheduler:dolphinscheduler /path/to/dolphinscheduler/logs/*
🧯 If You Can't Patch
- Implement strict access controls on log directories to limit access to authorized personnel only.
- Monitor log access attempts and implement alerting for unauthorized access patterns.
🔍 How to Verify
Check if Vulnerable:
Check the DolphinScheduler version by examining the application interface or configuration files for version information.Check Version:
Check the version in the DolphinScheduler web UI or examine the application.properties file.Verify Fix Applied:
Verify the version is 3.2.1 or later and confirm log file permissions are properly restricted.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to log files
- Suspicious log file reads from unexpected users or IPs
Network Indicators:
- Unusual requests to log endpoints or file access APIs
SIEM Query:
source="dolphinscheduler" AND (event="log_access" OR event="file_read") AND user NOT IN ["authorized_users"]