CVE-2021-2246
📋 TL;DR
This vulnerability in Oracle Universal Work Queue allows authenticated attackers with low privileges to perform unauthorized data manipulation and access critical information via HTTP. It affects Oracle E-Business Suite versions 12.1.1 through 12.1.3. Attackers can create, delete, or modify sensitive data without proper authorization.
💻 Affected Systems
- Oracle E-Business Suite
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Oracle Universal Work Queue data including unauthorized access to all critical business data, potential data destruction, and integrity breaches affecting business operations.
Likely Case
Unauthorized data manipulation and access to sensitive work queue information, potentially leading to business process disruption and data leakage.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place to detect unauthorized access attempts.
🎯 Exploit Status
Requires authenticated access but with low privileges. Easily exploitable according to CVSS assessment.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply Oracle Critical Patch Update for April 2021
Vendor Advisory: https://www.oracle.com/security-alerts/cpuapr2021.html
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Oracle Support. 2. Apply the patch following Oracle's patching procedures. 3. Restart affected services. 4. Verify patch application.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Oracle E-Business Suite to only trusted sources
Privilege Reduction
allReview and minimize privileges for all user accounts accessing Oracle Universal Work Queue
🧯 If You Can't Patch
- Implement strict network access controls and firewall rules to limit HTTP access to Oracle E-Business Suite
- Enhance monitoring and logging for unauthorized data access attempts in Oracle Universal Work Queue
🔍 How to Verify
Check if Vulnerable:
Check Oracle E-Business Suite version and verify if running affected versions 12.1.1-12.1.3Check Version:
Check Oracle application version through administrative interfaces or database queries specific to your deploymentVerify Fix Applied:
Verify patch application through Oracle's patch verification tools and confirm version is updated beyond affected range📡 Detection & Monitoring
Log Indicators:
- Unauthorized data modification attempts in Oracle Universal Work Queue logs
- Unusual access patterns to work provider administration functions
Network Indicators:
- HTTP requests to Oracle Universal Work Queue endpoints from unauthorized sources
- Unusual data manipulation patterns
SIEM Query:
source="oracle-ebs" AND (event_type="data_modification" OR event_type="unauthorized_access") AND component="Universal Work Queue"