CVE-2025-27528
📋 TL;DR
This vulnerability allows attackers to exploit insecure deserialization in Apache InLong's JDBC component, enabling arbitrary file reading on affected systems. It affects Apache InLong versions 1.13.0 through 2.1.0, potentially exposing sensitive data. Organizations using these versions for data integration are at risk.
💻 Affected Systems
- Apache InLong
📦 What is this software?
Inlong by Apache
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive system files, configuration files, or database credentials, leading to complete system compromise and data exfiltration.
Likely Case
Attackers would exploit this to read configuration files containing credentials or sensitive data, potentially escalating to further system access.
If Mitigated
With proper network segmentation and access controls, impact would be limited to the InLong service's file system access permissions.
🎯 Exploit Status
The vulnerability bypasses JDBC security mechanisms, suggesting exploitation requires understanding of InLong's JDBC implementation but no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2.0
Vendor Advisory: https://lists.apache.org/thread/b807rqzgyv4qgvxw3nhkq8tl6g90gqgj
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Upgrade Apache InLong to version 2.2.0. 3. Restart all InLong services. 4. Verify functionality post-upgrade.
🔧 Temporary Workarounds
Disable JDBC Component
allTemporarily disable the vulnerable JDBC component if not required for operations.
Modify InLong configuration to disable JDBC connectors
🧯 If You Can't Patch
- Implement strict network access controls to limit InLong service exposure
- Monitor file system access logs for unusual read patterns on sensitive files
🔍 How to Verify
Check if Vulnerable:
Check Apache InLong version; if between 1.13.0 and 2.1.0 inclusive, the system is vulnerable.Check Version:
Check InLong configuration files or application logs for version information.Verify Fix Applied:
Verify version is 2.2.0 or later and test JDBC functionality to ensure it works without allowing arbitrary file reads.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns from InLong processes
- JDBC connection attempts with malformed data
Network Indicators:
- Unexpected network traffic to InLong JDBC endpoints
SIEM Query:
source="inlong.log" AND ("file read" OR "deserialization error")