CVE-2021-2269
📋 TL;DR
This vulnerability in Oracle Advanced Pricing allows authenticated attackers with low privileges to manipulate critical pricing data via HTTP requests. It affects Oracle E-Business Suite version 12.1.3, enabling unauthorized data access, creation, modification, or deletion.
💻 Affected Systems
- Oracle E-Business Suite - Advanced Pricing
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Oracle Advanced Pricing data including unauthorized access to all pricing information and manipulation of critical business pricing rules.
Likely Case
Unauthorized modification of pricing data leading to incorrect quotes, invoices, or financial discrepancies.
If Mitigated
Limited impact with proper network segmentation and strict access controls preventing low-privileged users from reaching vulnerable components.
🎯 Exploit Status
Requires low-privileged authenticated access but is easily exploitable according to Oracle's rating.
🛠️ 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 April 2021 Critical Patch Update from Oracle Support. 2. Apply the patch following Oracle E-Business Suite patching procedures. 3. Restart affected services. 4. Test functionality in non-production environment first.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to Oracle E-Business Suite to only trusted IP addresses and networks.
Use firewall rules to limit access to Oracle E-Business Suite HTTP ports
Privilege Reduction
allReview and reduce privileges for users who don't require access to Advanced Pricing components.
Review Oracle E-Business Suite user roles and permissions
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Oracle E-Business Suite from untrusted networks
- Enforce principle of least privilege and regularly audit user access to Advanced Pricing components
🔍 How to Verify
Check if Vulnerable:
Check Oracle E-Business Suite version and installed components. If running version 12.1.3 with Advanced Pricing installed, assume vulnerable.Check Version:
Check Oracle E-Business Suite version through application administration interface or database queries specific to your installation.Verify Fix Applied:
Verify patch application through Oracle's patch management tools and confirm version is updated post-April 2021 CPU.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to Price Book components
- Multiple failed authentication attempts followed by successful access
- Unexpected data modifications in pricing tables
Network Indicators:
- HTTP traffic to Oracle E-Business Suite from unexpected sources
- Patterns of requests to Price Book endpoints
SIEM Query:
source="oracle-ebs" AND (uri CONTAINS "/pricebook" OR uri CONTAINS "/advancedpricing") AND (response_code=200 OR response_code=302) AND user_privilege="low"