CVE-2024-30188
📋 TL;DR
This vulnerability in Apache DolphinScheduler allows authenticated users to read and write files they shouldn't have access to, potentially exposing sensitive data or enabling further system compromise. It affects all Apache DolphinScheduler deployments running versions 3.1.0 through 3.2.1. Organizations using these versions should prioritize patching.
💻 Affected Systems
- Apache DolphinScheduler
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive configuration files, database credentials, or SSH keys, then write malicious files to gain remote code execution or persistent access.
Likely Case
Authenticated users (including low-privilege accounts) accessing sensitive files containing credentials, configuration data, or business information.
If Mitigated
Limited impact if strong network segmentation, minimal user accounts, and file system permissions restrict access to critical resources.
🎯 Exploit Status
Requires authenticated access but exploitation appears straightforward based on vulnerability description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.2
Vendor Advisory: https://lists.apache.org/thread/tbrt42mnr42bq6scxwt6bjr3s2pwyd07
Restart Required: Yes
Instructions:
1. Backup your current DolphinScheduler configuration and database. 2. Download Apache DolphinScheduler 3.2.2 from official sources. 3. Stop the DolphinScheduler service. 4. Replace the installation with version 3.2.2. 5. Restart the DolphinScheduler service. 6. Verify the upgrade was successful.
🔧 Temporary Workarounds
Restrict User Access
allReduce the number of authenticated users to only essential personnel and implement principle of least privilege.
Network Segmentation
allIsolate DolphinScheduler instances from sensitive systems and restrict network access to trusted IPs only.
🧯 If You Can't Patch
- Implement strict network access controls to limit which systems can communicate with DolphinScheduler
- Audit and reduce authenticated user accounts to absolute minimum, implement strong authentication
🔍 How to Verify
Check if Vulnerable:
Check the DolphinScheduler version in the web interface or configuration files. If version is between 3.1.0 and 3.2.1 inclusive, the system is vulnerable.Check Version:
Check the web interface or examine the version.txt file in the installation directory.Verify Fix Applied:
After upgrading, verify the version shows 3.2.2 or higher in the web interface or via the version API endpoint.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in application logs
- Multiple failed authentication attempts followed by successful login and file operations
Network Indicators:
- Unusual outbound connections from DolphinScheduler server
- Traffic patterns suggesting data exfiltration
SIEM Query:
source="dolphinscheduler" AND (event="file_access" OR event="resource_access") AND status="success" AND user!="admin"