CVE-2021-2349
📋 TL;DR
This vulnerability in Oracle Hyperion Essbase Administration Services allows unauthenticated attackers to remotely access sensitive data via HTTP. It affects versions 11.1.2.4 and 21.2, potentially compromising critical business intelligence data stored in Essbase systems.
💻 Affected Systems
- Oracle Hyperion Essbase Administration Services
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all data accessible through Hyperion Essbase Administration Services, including sensitive business intelligence, financial data, and potentially credentials for connected systems.
Likely Case
Unauthorized access to confidential business data, financial reports, and analytical information stored in Essbase databases.
If Mitigated
Limited impact if proper network segmentation and access controls prevent unauthenticated HTTP access to the administration console.
🎯 Exploit Status
The CVSS vector indicates network access via HTTP with no authentication required and low attack complexity, making exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply patches from Oracle Critical Patch Update July 2021
Vendor Advisory: https://www.oracle.com/security-alerts/cpujul2021.html
Restart Required: Yes
Instructions:
1. Download the appropriate patch from My Oracle Support. 2. Apply the patch following Oracle's Essbase patching procedures. 3. Restart the Essbase Administration Services. 4. Verify the patch was successfully applied.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to Essbase Administration Services to trusted IP addresses only
Use firewall rules to allow only authorized IPs to access port 13080 (default EAS port)
Authentication Enforcement
allImplement additional authentication layer before accessing EAS console
Configure reverse proxy with authentication or implement network-level authentication
🧯 If You Can't Patch
- Isolate Essbase Administration Services in a separate network segment with strict access controls
- Implement network monitoring and intrusion detection specifically for EAS console traffic
🔍 How to Verify
Check if Vulnerable:
Check if running Oracle Hyperion Essbase Administration Services version 11.1.2.4 or 21.2Check Version:
Check Essbase version through EAS console or examine installation logsVerify Fix Applied:
Verify patch application through Oracle OPatch utility and confirm version is no longer vulnerable📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access attempts to EAS console
- Unusual data access patterns from unexpected IP addresses
Network Indicators:
- HTTP requests to EAS console port from unauthorized sources
- Unusual data extraction patterns
SIEM Query:
source_ip NOT IN (trusted_ips) AND dest_port=13080 AND protocol=HTTP