CVE-2021-2195
📋 TL;DR
This vulnerability in Oracle Partner Management allows unauthenticated attackers to access sensitive data and modify information via HTTP requests. It affects Oracle E-Business Suite versions 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 - Oracle Partner Management
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Oracle Partner Management data including unauthorized access to all critical information and ability to modify, insert, or delete data, potentially impacting connected systems.
Likely Case
Unauthorized access to sensitive partner management data and limited data manipulation capabilities.
If Mitigated
Limited impact with proper network segmentation and access controls preventing unauthenticated HTTP access.
🎯 Exploit Status
Requires human interaction from a victim (UI:R in CVSS vector), suggesting some form of social engineering or user action may be needed.
🛠️ 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's 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 Partner Management to trusted IP addresses only
# Use firewall rules to restrict access
# Example for Linux iptables:
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
Authentication Enforcement
allImplement additional authentication layer before accessing Oracle Partner Management
# Configure web server (Apache/Nginx) to require authentication
# Example Apache .htaccess:
AuthType Basic
AuthName "Restricted Access"
AuthUserFile /path/to/.htpasswd
Require valid-user
🧯 If You Can't Patch
- Isolate Oracle Partner Management systems from internet access and restrict to internal network only
- Implement web application firewall (WAF) rules to block suspicious HTTP requests to the Attribute Admin Setup component
🔍 How to Verify
Check if Vulnerable:
Check Oracle E-Business Suite version and installed modules. If running affected versions (12.1.3 or 12.2.3-12.2.10) with Oracle Partner Management installed, system is vulnerable.Check Version:
SELECT RELEASE_NAME FROM FND_PRODUCT_GROUPS; -- Check EBS version
SELECT APPLICATION_NAME FROM FND_APPLICATION WHERE APPLICATION_SHORT_NAME = 'PN'; -- Check if Partner Management installedVerify Fix Applied:
Verify April 2021 Critical Patch Update is applied by checking patch inventory and confirming Oracle Partner Management version is updated.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to Attribute Admin Setup endpoints
- Multiple failed authentication attempts followed by successful access
- Unauthorized data access or modification in audit logs
Network Indicators:
- Unusual HTTP traffic patterns to Oracle Partner Management from unexpected sources
- Requests bypassing normal authentication flows
SIEM Query:
source="oracle-ebs-logs" AND (uri_path="*AttributeAdminSetup*" OR module="Partner Management") AND (status="200" OR status="302") AND src_ip NOT IN [trusted_ips]