CVE-2024-20924
📋 TL;DR
This vulnerability in Oracle Audit Vault and Database Firewall allows a high-privileged attacker with network access via Oracle Net to potentially take over the system. It requires human interaction from someone other than the attacker and affects versions 20.1 through 20.9. While difficult to exploit, successful attacks could impact additional products beyond the vulnerable component.
💻 Affected Systems
- Oracle Audit Vault and Database Firewall
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Oracle Audit Vault and Database Firewall leading to full system takeover, potential lateral movement to connected systems, and compromise of audit data integrity.
Likely Case
Limited exploitation due to high privilege requirements and need for human interaction, but successful attacks could lead to unauthorized access to sensitive audit data and firewall configurations.
If Mitigated
Minimal impact with proper network segmentation, privileged access controls, and user awareness training to prevent social engineering.
🎯 Exploit Status
Exploitation requires high privileges, network access via Oracle Net, and human interaction from another person. Scope change indicates potential impact beyond the vulnerable component.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply patches from Oracle Critical Patch Update Advisory - January 2024
Vendor Advisory: https://www.oracle.com/security-alerts/cpujan2024.html
Restart Required: Yes
Instructions:
1. Review Oracle Critical Patch Update Advisory for January 2024. 2. Download appropriate patches for Oracle Audit Vault and Database Firewall versions 20.1-20.9. 3. Apply patches following Oracle's documentation. 4. Restart affected services/systems as required.
🔧 Temporary Workarounds
Network Segmentation
allRestrict Oracle Net access to only trusted administrative networks and systems
Configure firewall rules to limit Oracle Net (typically port 1521) access to specific IP ranges
Privileged Access Control
allImplement strict controls on high-privilege accounts and monitor their usage
Review and minimize high-privilege account assignments
Implement multi-factor authentication for administrative access
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Oracle Audit Vault and Database Firewall from untrusted networks
- Enhance monitoring of Oracle Net connections and privileged user activities for suspicious behavior
🔍 How to Verify
Check if Vulnerable:
Check Oracle Audit Vault and Database Firewall version via administrative interface or command line. Versions 20.1 through 20.9 are vulnerable.Check Version:
Check version via Oracle Audit Vault and Database Firewall administrative console or refer to Oracle documentation for version query commandsVerify Fix Applied:
Verify patch installation through Oracle's patch management tools or by checking version information post-patching.📡 Detection & Monitoring
Log Indicators:
- Unusual Oracle Net connection attempts from unexpected sources
- Multiple failed authentication attempts followed by successful high-privilege access
- Unexpected configuration changes to firewall rules or audit settings
Network Indicators:
- Oracle Net (port 1521) traffic from unauthorized sources
- Anomalous patterns in Oracle protocol communications
SIEM Query:
source_port:1521 AND (src_ip NOT IN [allowed_admin_ips]) OR (event_type:"privileged_access" AND user_behavior:"anomalous")