CVE-2023-51467
📋 TL;DR
CVE-2023-51467 is an authentication bypass vulnerability in Apache OFBiz that allows attackers to circumvent authentication mechanisms and remotely execute arbitrary code. This affects Apache OFBiz installations, potentially compromising entire systems. Organizations using vulnerable versions of Apache OFBiz are at risk.
💻 Affected Systems
- Apache OFBiz
📦 What is this software?
Ofbiz by Apache
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full administrative control, data exfiltration, ransomware deployment, and persistent backdoor installation.
Likely Case
Unauthorized access to sensitive business data, manipulation of business processes, and lateral movement within the network.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.
🎯 Exploit Status
The vulnerability is publicly documented with proof-of-concept details available in the Apache issue tracker and mailing lists.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 18.12.11
Vendor Advisory: https://ofbiz.apache.org/release-notes-18.12.11.html
Restart Required: Yes
Instructions:
1. Download Apache OFBiz 18.12.11 from https://ofbiz.apache.org/download.html 2. Backup current installation 3. Replace with patched version 4. Restart OFBiz services
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to OFBiz instances using firewall rules
iptables -A INPUT -p tcp --dport 8443 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 8443 -j DROP
Web Application Firewall
allDeploy WAF with rules to detect and block authentication bypass attempts
🧯 If You Can't Patch
- Implement strict network segmentation to isolate OFBiz from critical systems
- Enable detailed logging and monitoring for authentication anomalies and unusual access patterns
🔍 How to Verify
Check if Vulnerable:
Check OFBiz version via admin interface or by examining installation files. Versions before 18.12.11 are vulnerable.Check Version:
Check the version.txt file in OFBiz installation directory or use the admin interfaceVerify Fix Applied:
Verify installation shows version 18.12.11 and test authentication mechanisms work correctly.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- Unusual user agent strings
- Access from unexpected IP addresses
- Multiple authentication bypass attempts
Network Indicators:
- Unusual traffic patterns to authentication endpoints
- Requests bypassing normal authentication flows
- Suspicious payloads in HTTP requests
SIEM Query:
source="ofbiz.log" AND ("authentication bypass" OR "unauthorized access" OR "CVE-2023-51467")🔗 References
- https://issues.apache.org/jira/browse/OFBIZ-12873
- https://lists.apache.org/thread/9tmf9qyyhgh6m052rhz7lg9vxn390bdv
- https://lists.apache.org/thread/oj2s6objhdq72t6g29omqpcbd1wlp48o
- https://ofbiz.apache.org/download.html
- https://ofbiz.apache.org/release-notes-18.12.11.html
- https://ofbiz.apache.org/security.html
- https://www.openwall.com/lists/oss-security/2023/12/26/3
- https://issues.apache.org/jira/browse/OFBIZ-12873
- https://lists.apache.org/thread/9tmf9qyyhgh6m052rhz7lg9vxn390bdv
- https://lists.apache.org/thread/oj2s6objhdq72t6g29omqpcbd1wlp48o
- https://ofbiz.apache.org/download.html
- https://ofbiz.apache.org/release-notes-18.12.11.html
- https://ofbiz.apache.org/security.html
- https://www.openwall.com/lists/oss-security/2023/12/26/3
- https://www.vicarius.io/vsociety/posts/apache-ofbiz-authentication-bypass-vulnerability-cve-2023-49070-and-cve-2023-51467
