CVE-2023-34434
📋 TL;DR
This CVE describes a deserialization vulnerability in Apache InLong that allows attackers to bypass security controls and read arbitrary files. It affects Apache InLong versions 1.4.0 through 1.7.0. Organizations using these versions are vulnerable to unauthorized file access.
💻 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 application data, potentially leading to credential theft, data exfiltration, or further system compromise.
Likely Case
Unauthorized reading of application configuration files, potentially exposing database credentials, API keys, or other sensitive configuration data.
If Mitigated
With proper network segmentation and access controls, impact would be limited to the compromised application's accessible files only.
🎯 Exploit Status
The vulnerability allows bypassing existing security logic, suggesting exploitation may not require advanced skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.0
Vendor Advisory: https://lists.apache.org/thread/7f1o71w5r732cspltmtdydn01gllf4jo
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download Apache InLong 1.8.0 from official sources. 3. Stop the InLong service. 4. Replace with version 1.8.0. 5. Restart the service. 6. Verify functionality.
🔧 Temporary Workarounds
Cherry-pick security fix
allApply the specific security patch from GitHub without upgrading to 1.8.0
git cherry-pick <commit-hash> from https://github.com/apache/inlong/pull/8130
🧯 If You Can't Patch
- Implement strict network access controls to limit InLong service exposure
- Deploy web application firewall (WAF) rules to detect and block deserialization attempts
🔍 How to Verify
Check if Vulnerable:
Check the InLong version in application logs or configuration files. If version is between 1.4.0 and 1.7.0 inclusive, the system is vulnerable.Check Version:
Check application logs or configuration files for version information specific to your deployment method.Verify Fix Applied:
After patching, verify the version shows 1.8.0 or later, and test that the deserialization endpoint no longer accepts malicious payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns from InLong processes
- Deserialization errors or warnings in application logs
- Requests to file reading endpoints with unusual parameters
Network Indicators:
- Unusual outbound file transfers from InLong servers
- Patterns of requests attempting to bypass deserialization controls
SIEM Query:
source="inlong.logs" AND (deserialization OR file_read OR path_traversal)🔗 References
- http://seclists.org/fulldisclosure/2023/Jul/43
- http://www.openwall.com/lists/oss-security/2023/07/25/3
- https://lists.apache.org/thread/7f1o71w5r732cspltmtdydn01gllf4jo
- http://seclists.org/fulldisclosure/2023/Jul/43
- http://www.openwall.com/lists/oss-security/2023/07/25/3
- https://lists.apache.org/thread/7f1o71w5r732cspltmtdydn01gllf4jo
