CVE-2020-7304
📋 TL;DR
This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in McAfee Data Loss Prevention ePO extension. It allows authenticated attackers to embed malicious scripts by adding new labels, potentially leading to unauthorized actions. Organizations using McAfee DLP ePO extension versions prior to 11.5.3 are affected.
💻 Affected Systems
- McAfee Data Loss Prevention ePO extension
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker could perform administrative actions on behalf of authenticated users, potentially modifying DLP policies, exfiltrating sensitive data, or disabling security controls.
Likely Case
Attackers could trick authenticated administrators into performing unintended actions like modifying labels or policies, potentially weakening DLP protections.
If Mitigated
With proper CSRF protections and user awareness training, the risk is significantly reduced as attackers would need to trick authenticated users into clicking malicious links.
🎯 Exploit Status
Exploitation requires tricking authenticated users into visiting malicious pages; no authentication bypass needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 11.5.3 and later
Vendor Advisory: https://kc.mcafee.com/corporate/index?page=content&id=SB10326
Restart Required: Yes
Instructions:
1. Download McAfee DLP ePO extension version 11.5.3 or later from official sources. 2. Deploy the update through ePO console. 3. Restart affected services as required.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd anti-CSRF tokens to all state-changing requests in the DLP ePO extension interface.
Restrict Label Management
allLimit label management permissions to only essential administrators and implement approval workflows.
🧯 If You Can't Patch
- Implement strict SameSite cookie policies and Content Security Policy headers
- Educate users about CSRF risks and require re-authentication for sensitive actions
🔍 How to Verify
Check if Vulnerable:
Check ePO console for DLP extension version; versions below 11.5.3 are vulnerable.Check Version:
Check ePO console: System Tree → Select ePO server → Actions → Agent → Show Agent Version DetailsVerify Fix Applied:
Verify DLP ePO extension version is 11.5.3 or higher in ePO console.📡 Detection & Monitoring
Log Indicators:
- Unusual label creation/modification patterns
- Multiple label changes from single user session
Network Indicators:
- HTTP POST requests to label management endpoints without proper referrer headers
SIEM Query:
source="ePO_logs" AND (event="label_creation" OR event="label_modification") AND user_agent CONTAINS suspicious_pattern