CVE-2025-30067
📋 TL;DR
This CVE describes a code injection vulnerability in Apache Kylin where attackers with admin access can modify JDBC connection configurations to execute arbitrary remote code. It affects Apache Kylin versions 4.0.0 through 5.0.1. The vulnerability requires administrative access to exploit.
💻 Affected Systems
- Apache Kylin
📦 What is this software?
Kylin by Apache
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with remote code execution leading to data theft, system takeover, or lateral movement within the network.
Likely Case
Privileged attackers who gain admin access could execute arbitrary code on the Kylin server, potentially accessing sensitive data or disrupting operations.
If Mitigated
Minimal impact if admin access is properly secured with strong authentication, least privilege, and network segmentation.
🎯 Exploit Status
Exploitation requires administrative access to Kylin, making it a post-authentication vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.0.2 or above
Vendor Advisory: https://lists.apache.org/thread/6j19pt8yoqfphf1lprtrzoqkvz1gwbnc
Restart Required: No
Instructions:
1. Download Apache Kylin 5.0.2 or later from official sources. 2. Backup current configuration and data. 3. Stop Kylin service. 4. Replace with patched version. 5. Restore configuration. 6. Start Kylin service.
🔧 Temporary Workarounds
Restrict Admin Access
allImplement strict access controls for Kylin admin accounts using multi-factor authentication and principle of least privilege.
Network Segmentation
allIsolate Kylin instances from sensitive systems and restrict outbound connections from Kylin servers.
🧯 If You Can't Patch
- Implement strict access controls and monitoring for all Kylin admin accounts
- Segment Kylin instances and restrict network connectivity to minimize blast radius
🔍 How to Verify
Check if Vulnerable:
Check Apache Kylin version via web interface or configuration files. Versions 4.0.0 through 5.0.1 are vulnerable.Check Version:
Check KYLIN_HOME/conf/kylin.properties or web interface for version informationVerify Fix Applied:
Verify version is 5.0.2 or higher and test JDBC configuration functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual JDBC configuration changes
- Admin account access from unexpected locations
- Suspicious outbound connections from Kylin server
Network Indicators:
- Unexpected outbound connections from Kylin server to external systems
- Unusual database connection patterns
SIEM Query:
source="kylin" AND (event="configuration_change" OR user="admin")