CVE-2021-2474
📋 TL;DR
This vulnerability in Oracle Web Analytics allows low-privileged attackers with network access via HTTP to compromise the system, potentially leading to unauthorized creation, deletion, or modification of critical data, as well as unauthorized access to sensitive information. It affects Oracle E-Business Suite versions 12.1.1 through 12.1.3, specifically the Admin component of Oracle Web Analytics.
💻 Affected Systems
- Oracle E-Business Suite
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Oracle Web Analytics data, including unauthorized access to all critical data and ability to modify or delete it, leading to data breaches or system disruption.
Likely Case
Unauthorized access to sensitive data and potential data manipulation by low-privileged users, resulting in confidentiality and integrity breaches.
If Mitigated
Limited impact if proper network segmentation and access controls restrict low-privileged users, but risk remains if patching is delayed.
🎯 Exploit Status
The vulnerability is described as easily exploitable by low-privileged attackers via HTTP, but no public exploit details are available in the references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply patches from Oracle Critical Patch Update October 2021 or later as specified in the advisory.
Vendor Advisory: https://www.oracle.com/security-alerts/cpuoct2021.html
Restart Required: Yes
Instructions:
1. Review Oracle Critical Patch Update Advisory for October 2021. 2. Download and apply the relevant patches for Oracle E-Business Suite versions 12.1.1-12.1.3. 3. Restart affected services or systems as required by Oracle documentation.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to Oracle Web Analytics Admin component to trusted IPs only, reducing exposure to potential attackers.
Use firewall rules (e.g., iptables or Windows Firewall) to allow only authorized IPs to the HTTP port used by Oracle Web Analytics.
🧯 If You Can't Patch
- Implement strict access controls to limit low-privileged user access to the Oracle Web Analytics Admin component.
- Monitor network traffic and logs for unusual HTTP requests targeting the Admin component to detect potential exploitation attempts.
🔍 How to Verify
Check if Vulnerable:
Check the Oracle E-Business Suite version and patch level; if running versions 12.1.1-12.1.3 without the October 2021 patches, it is vulnerable.Check Version:
Consult Oracle documentation or use Oracle-specific commands (e.g., opatch lsinventory) to check the installed version and patches.Verify Fix Applied:
Verify that patches from Oracle Critical Patch Update October 2021 have been applied successfully by checking the patch installation logs or version details.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to Oracle Web Analytics Admin endpoints, especially from low-privileged users or unexpected IPs.
Network Indicators:
- Suspicious HTTP traffic patterns to the Oracle Web Analytics service, such as repeated failed or unauthorized access attempts.
SIEM Query:
Example: search for HTTP requests with status codes indicating unauthorized access (e.g., 403, 401) to paths containing 'web analytics' or 'admin' in the URI.