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CVE-2021-2252

8.1 HIGH

📋 TL;DR

This vulnerability in Oracle Loans (part of Oracle E-Business Suite) allows authenticated attackers with low privileges to perform unauthorized data manipulation and access sensitive information via HTTP. It affects Oracle E-Business Suite versions 12.1.1 through 12.1.3. Attackers can create, delete, or modify critical data, potentially compromising loan-related information.

💻 Affected Systems

Products:
  • Oracle E-Business Suite - Oracle Loans
Versions: 12.1.1 through 12.1.3
Operating Systems: Any OS running Oracle E-Business Suite
Default Config Vulnerable: ⚠️ Yes
Notes: Requires Oracle Loans component to be installed and accessible via HTTP. Affects both internet-facing and internal deployments.

📦 What is this software?

Loans by Oracle

View all CVEs affecting Loans →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of all Oracle Loans data including unauthorized access to sensitive financial information, modification of loan records, and potential financial fraud or data destruction.

🟠

Likely Case

Unauthorized access to loan details and accounting events, potentially leading to data theft, manipulation of loan terms, or unauthorized loan processing.

🟢

If Mitigated

Limited impact if proper network segmentation, least privilege access controls, and monitoring are in place to detect suspicious activity.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Oracle describes this as 'easily exploitable' but requires authenticated access with low privileges. No public exploit code has been identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Apply Oracle Critical Patch Update for April 2021 or later

Vendor Advisory: https://www.oracle.com/security-alerts/cpuapr2021.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 in a non-production environment first.

🔧 Temporary Workarounds

Network Access Restriction

all

Restrict network access to Oracle Loans component to only trusted IP addresses or internal networks

Privilege Reduction

all

Review and reduce user privileges to minimum required for business functions

🧯 If You Can't Patch

  • Implement strict network segmentation and firewall rules to limit access to Oracle Loans
  • Enable detailed audit logging and implement real-time monitoring for suspicious data access patterns

🔍 How to Verify

Check if Vulnerable:

Check Oracle E-Business Suite version and verify if Oracle Loans component is installed and running versions 12.1.1-12.1.3

Check Version:

SELECT RELEASE_NAME FROM FND_PRODUCT_GROUPS;

Verify Fix Applied:

Verify that the April 2021 Critical Patch Update has been applied and check patch status in Oracle Enterprise Manager or via SQL queries

📡 Detection & Monitoring

Log Indicators:

  • Unusual data access patterns in Oracle Loans logs
  • Multiple failed authentication attempts followed by successful access
  • Unexpected data modifications in loan-related tables

Network Indicators:

  • HTTP requests to Oracle Loans endpoints from unusual IP addresses
  • High volume of data access requests from single user accounts

SIEM Query:

source="oracle-ebs" AND (event_type="data_access" OR event_type="data_modification") AND component="loans" AND user_privilege="low"

📊 Metadata

CVE ID: CVE-2021-2252
CVSS v3 Score: 8.1 (HIGH)
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published: April 22, 2021
Last Updated: November 21, 2024

🔗 References

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