CVE-2024-43115
📋 TL;DR
An authenticated user in Apache DolphinScheduler can exploit improper input validation in alert script functionality to execute arbitrary shell commands on the server. This affects all Apache DolphinScheduler installations before version 3.2.2 where alert scripts are enabled.
💻 Affected Systems
- Apache DolphinScheduler
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full server compromise leading to data exfiltration, lateral movement, ransomware deployment, or complete system takeover.
Likely Case
Unauthorized command execution leading to data access, service disruption, or privilege escalation within the DolphinScheduler environment.
If Mitigated
Limited impact if network segmentation, strict authentication, and least privilege principles are properly implemented.
🎯 Exploit Status
Exploitation requires authenticated access but appears straightforward based on vulnerability description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.3.1 (or 3.2.2+)
Vendor Advisory: https://lists.apache.org/thread/qm36nrsv1vrr2j4o5q2wo75h3686hrnj
Restart Required: Yes
Instructions:
1. Backup configuration and data. 2. Stop DolphinScheduler service. 3. Upgrade to version 3.3.1 or later. 4. Restart service. 5. Verify functionality.
🔧 Temporary Workarounds
Disable Alert Scripts
allTemporarily disable alert script functionality to prevent exploitation
Modify alert configuration to remove or disable script execution capabilities
Restrict User Permissions
allLimit authenticated users' access to alert script features
Review and tighten user role permissions in DolphinScheduler
🧯 If You Can't Patch
- Implement strict network segmentation to isolate DolphinScheduler from critical systems
- Enforce least privilege access controls and monitor all authenticated user activities
🔍 How to Verify
Check if Vulnerable:
Check DolphinScheduler version via web interface or configuration files. Versions below 3.2.2 are vulnerable.Check Version:
Check version in web UI or configuration files. No single command; version is in application properties.Verify Fix Applied:
Confirm version is 3.3.1 or later and test alert script functionality with safe commands.📡 Detection & Monitoring
Log Indicators:
- Unusual shell command execution in alert logs
- Multiple failed or suspicious alert script attempts
- Commands from unexpected user accounts
Network Indicators:
- Unexpected outbound connections from DolphinScheduler server
- Command and control traffic patterns
SIEM Query:
Search for 'alert script execution' events with suspicious command patterns or from unusual users