CVE-2023-46227
📋 TL;DR
This vulnerability allows attackers to bypass security controls in Apache InLong by using tab characters to exploit a deserialization flaw. It affects all Apache InLong deployments running versions 1.4.0 through 1.8.0, potentially enabling remote code execution or data manipulation.
💻 Affected Systems
- Apache InLong
📦 What is this software?
Inlong by Apache
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data exfiltration, or deployment of ransomware.
Likely Case
Unauthorized data access, privilege escalation, or service disruption through deserialization attacks.
If Mitigated
Limited impact with proper network segmentation and input validation, potentially only service disruption.
🎯 Exploit Status
Exploitation requires understanding of deserialization vulnerabilities and the specific bypass technique using tab characters.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.9.0
Vendor Advisory: https://lists.apache.org/thread/m8txor4f76tmrxksrmc87tw42g57nz33
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download Apache InLong 1.9.0 from official sources. 3. Stop all InLong services. 4. Replace with patched version. 5. Restart services. 6. Verify functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement custom input validation to reject requests containing tab characters in deserialization contexts.
Configure application firewall or WAF to block requests with suspicious tab character patterns
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Apache InLong instances from sensitive systems
- Deploy web application firewall (WAF) with rules to detect and block deserialization attack patterns
🔍 How to Verify
Check if Vulnerable:
Check Apache InLong version via management interface or configuration files. Versions 1.4.0-1.8.0 are vulnerable.Check Version:
Check application logs, configuration files, or use management API to confirm version.Verify Fix Applied:
Verify version is 1.9.0 or later and test deserialization functionality with safe payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual deserialization errors
- Requests with tab characters in payloads
- Unexpected process spawns
Network Indicators:
- Unusual outbound connections from InLong servers
- Suspicious serialized object patterns in traffic
SIEM Query:
source="apache_inlong" AND (message="*deserialization*" OR message="*tab*" OR message="*\t*")