CVE-2021-2260
📋 TL;DR
This vulnerability in Oracle E-Business Suite's iRecruitment component allows authenticated attackers with low privileges to perform unauthorized data manipulation and access sensitive HR information via HTTP. It affects Oracle Human Resources version 12.1.3, potentially compromising critical personnel data.
💻 Affected Systems
- Oracle E-Business Suite
- Oracle Human Resources
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Oracle Human Resources data including unauthorized creation, modification, or deletion of critical HR records, plus full access to confidential employee information.
Likely Case
Unauthorized access to sensitive HR data and potential manipulation of recruitment records by authenticated users with basic privileges.
If Mitigated
Limited impact if proper access controls, network segmentation, and monitoring are implemented to detect suspicious HR data access patterns.
🎯 Exploit Status
Oracle describes it as 'easily exploitable' requiring only low privileged network access via HTTP. No authentication bypass is required, but attacker needs valid low-privilege credentials.
🛠️ 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 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 E-Business Suite to only trusted IP addresses and networks
Configure firewall rules to limit access to Oracle E-Business Suite HTTP ports
Privilege Reduction
allReview and minimize low-privilege user accounts with access to iRecruitment component
Execute Oracle user privilege review scripts and remove unnecessary access
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Oracle E-Business Suite from untrusted networks
- Enhance monitoring and alerting for unusual HR data access patterns and implement compensating controls
🔍 How to Verify
Check if Vulnerable:
Check Oracle E-Business Suite version and verify if April 2021 CPU has been applied. Review patch application logs.Check Version:
SELECT RELEASE_NAME FROM FND_PRODUCT_GROUPS; or check Oracle application server versionVerify Fix Applied:
Verify patch application through Oracle's patch management tools and confirm version is updated beyond vulnerable state.📡 Detection & Monitoring
Log Indicators:
- Unusual iRecruitment component access patterns
- Multiple failed authentication attempts followed by successful low-privilege access
- Unexpected HR data modifications
Network Indicators:
- HTTP requests to iRecruitment endpoints from unusual sources
- Burst of HR-related database queries
SIEM Query:
source="oracle-ebs" AND (component="iRecruitment" OR module="HR") AND (event_type="data_modification" OR user_privilege="LOW")