CVE-2021-2077
📋 TL;DR
This vulnerability in Oracle iStore allows unauthenticated attackers to access sensitive data and modify information via HTTP. It affects Oracle E-Business Suite versions 12.1.1-12.1.3 and 12.2.3-12.2.10. Successful exploitation requires human interaction from someone other than the attacker.
💻 Affected Systems
- Oracle E-Business Suite iStore
📦 What is this software?
Istore by Oracle
Istore by Oracle
⚠️ Risk & Real-World Impact
Worst Case
Complete unauthorized access to all Oracle iStore data, including critical business information, with ability to modify or delete data across connected systems.
Likely Case
Unauthorized access to sensitive customer and business data stored in iStore, with potential data manipulation in shopping cart functionality.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.
🎯 Exploit Status
Exploitation requires human interaction (social engineering or user interaction), making it easier to exploit but requiring some user action.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply Oracle Critical Patch Update for January 2021 or later
Vendor Advisory: https://www.oracle.com/security-alerts/cpujan2021.html
Restart Required: Yes
Instructions:
1. Download the appropriate Critical Patch Update from Oracle Support. 2. Apply the patch following Oracle's patching procedures. 3. Restart affected Oracle E-Business Suite services. 4. Test functionality after patching.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Oracle iStore to only trusted sources
Web Application Firewall Rules
allImplement WAF rules to block suspicious HTTP requests to iStore endpoints
🧯 If You Can't Patch
- Implement strict network access controls to limit HTTP access to Oracle iStore
- Enable detailed logging and monitoring for suspicious iStore access patterns
🔍 How to Verify
Check if Vulnerable:
Check Oracle E-Business Suite version and compare against affected versions 12.1.1-12.1.3 or 12.2.3-12.2.10Check Version:
Check Oracle E-Business Suite version through application interface or database queries specific to your deploymentVerify Fix Applied:
Verify that January 2021 Critical Patch Update or later has been applied successfully📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to iStore endpoints from unauthenticated sources
- Multiple failed authentication attempts followed by successful access
Network Indicators:
- HTTP traffic to iStore from unexpected IP ranges
- Unusual data extraction patterns from iStore databases
SIEM Query:
source="oracle-ebs" AND (uri CONTAINS "/iStore/" OR uri CONTAINS "ShoppingCart") AND http_method IN ("POST","GET") AND user_agent="unknown"