CVE-2024-43166
📋 TL;DR
Apache DolphinScheduler versions before 3.2.2 have incorrect default permissions that could allow unauthorized access to sensitive functionality or data. This affects all deployments using vulnerable versions of this workflow scheduling platform. Attackers could exploit this to gain elevated privileges or access restricted resources.
💻 Affected Systems
- Apache DolphinScheduler
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code, access sensitive data, or disrupt workflow scheduling operations.
Likely Case
Unauthorized access to administrative functions, workflow manipulation, or data exfiltration from the scheduling platform.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to the vulnerable service.
🎯 Exploit Status
CWE-276 indicates incorrect default permissions, suggesting exploitation may be straightforward once the specific permission issue is understood.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.3.1
Vendor Advisory: https://lists.apache.org/thread/8zd69zkkx55qp365xp4tml1xh9og5lhk
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download Apache DolphinScheduler 3.3.1 from official sources. 3. Stop the DolphinScheduler service. 4. Replace installation with new version. 5. Restore configuration if needed. 6. Start the service and verify functionality.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to DolphinScheduler to only trusted IP addresses
iptables -A INPUT -p tcp --dport [DolphinScheduler_port] -s [trusted_ip] -j ACCEPT
iptables -A INPUT -p tcp --dport [DolphinScheduler_port] -j DROP
Application Firewall Rules
allImplement web application firewall rules to block suspicious access patterns
🧯 If You Can't Patch
- Implement strict network segmentation to isolate DolphinScheduler from untrusted networks
- Apply principle of least privilege to service accounts and file permissions
🔍 How to Verify
Check if Vulnerable:
Check the DolphinScheduler version in the web interface or configuration files. Versions before 3.2.2 are vulnerable.Check Version:
Check the version in the web UI or examine the installation directory for version filesVerify Fix Applied:
After upgrading, verify the version shows 3.3.1 or later in the web interface or via version check command.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to administrative endpoints
- Unusual permission changes or access patterns
Network Indicators:
- Unexpected connections to DolphinScheduler ports from unauthorized sources
SIEM Query:
source="dolphinscheduler" AND (event_type="access_denied" OR event_type="permission_change")