CVE-2021-4088: Security Bulletin - Data Loss Prevention ePO extension update fixes Blind SQL injection vulnerability (CVE-2021-4088)

First Published: January 21, 2021

Product:

Impacted Versions:

CVE ID:

Impact of Vulnerabilities:

Severity Ratings:

CVSS v3.1
Base/Temporal Scores:

Data Loss Prevention (DLP) ePO extension

Prior to 11.8.100, 11.7.101, and
11.6.401

CVE-2021-4088

CWE-89: Improper Neutralization of Special Elements used in an SQL Command (‘SQL Injection’)

High

8.4 / 7.6

Recommendations:

Install or update to DLP ePO extension 11.8.100, 11.7.101, or
11.6.401

Security Bulletin Replacement:

None

Location of updated software:

Product Downloads site

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Article contents:

• Vulnerability Description
• Remediation
• Acknowledgments
• Frequently Asked Questions (FAQs)
• Resources
• Disclaimer

Vulnerability Description
This update is required for all customers using McAfee Enterprise DLP products. The extension is common to:

• DLP Endpoint for Windows and Mac
• DLP Discover
• DLP Prevent
• DLP Monitor

The recommended deployment is for the ePO server to be on an internal network, with access to the administrator interface being restricted. This issue doesn’t impact MVISION DLP.

CVE-2021-4088
SQL injection vulnerability in Data Loss Protection (DLP) ePO extension 11.8.x prior to 11.8.100, 11.7.x prior to 11.7.101, and 11.6.401 allows a remote authenticated attacker to inject unfiltered SQL into the DLP part of the ePO database. This could lead to remote code execution on the ePO server with privilege escalation.
NIST CVE-2021-4088
MITRE CVE-2021-4088
Remediation
To remediate this issue:

• Customers on DLP ePO extension 11.8.x should update to DLP ePO extension 11.8.100.
• Customers on DLP ePO extension 11.7.x can upgrade to DLP ePO extension 11.8.100 or should update to DLP ePO extension 11.7.101.
• Customers on DLP ePO extension 11.6.x can upgrade to DLP ePO extension 11.8.100 or should update to DLP ePO extension 11.6.401.

Go to the Product Downloads site, and download the applicable product hotfix file:

Product

Version

Type

Release Date

DLP ePO extension

11.8.100
11.7.101
11.6.401

Hotfix

January 21, 2021

Download and Installation Instructions
For instructions to download product updates and hotfixes, see: KB56057 - How to download Enterprise product updates and documentation. Review the Release Notes and the Installation Guide for instructions on how to install these updates. All documentation is available at our Product Documentation site.
Acknowledgments
McAfee credits SCRT Research Lab for responsibly reporting this flaw.
Frequently Asked Questions (FAQs)
How do I know if my product is vulnerable or not?

For endpoint products:

Use the following instructions for endpoint or client-based products:

1. Right-click the McAfee tray shield icon on the Windows taskbar.
2. Select Open Console.
3. In the console, select Action Menu.
4. In the Action Menu, select Product Details. The product version displays.

For DLPe ePO Extension:

Use the following instructions:

1. Log on to the ePO server.
2. Click Menu, Data Protection, DLP Policy.
3. Inside the DLP console click Help, About. The product version displays.

What is CVSS?
Common Vulnerability Scoring System (CVSS) is the result of the National Infrastructure Advisory Council’s effort to standardize a system of assessing the criticality of a vulnerability. This system offers an unbiased criticality score between 0 and 10 that customers can use to judge how critical a vulnerability is and plan accordingly. For more information, visit the CVSS website.

When calculating CVSS scores, McAfee Enterprise has adopted a philosophy that fosters consistency and repeatability. Our guiding principle for CVSS scoring is to score the exploit under consideration by itself. We consider only the immediate and direct impact of the exploit under consideration. We don’t factor into a score any potential follow-on exploits that might be made possible by the successful exploitation of the issue being scored.

What are the CVSS scoring metrics?

CVE-2021-4088: Blind SQL injection in DLP ePO extension

Base Score

8.4

Attack Vector (AV)

Network (N)

Attack Complexity (AC)

Low (L)

Privileges Required (PR)

High (H)

User Interaction (UI)

Required ®

Scope (S)

Changed ©

Confidentiality ©

High (H)

Integrity (I)

High (H)

Availability (A)

High (H)

Temporal Score (Overall)

7.6

Exploitability (E)

Proof-of-Concept §

Remediation Level (RL)

Official Fix (O)

Report Confidence (RC)

Confirmed ©

NOTE: This CVSS version 3.1 vector was used to generate this score.

Where can I find a list of all Security Bulletins?
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How do I report a product vulnerability to McAfee Enterprise?
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How does McAfee Enterprise respond to this and any other reported security flaws?
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McAfee Enterprise only publishes Security Bulletins if they include something actionable such as a workaround, mitigation, version update, or hotfix. Otherwise, we would simply be informing the hacker community that our products are a target, putting our customers at greater risk. For products that are updated automatically, a non-actionable Security Bulletin might be published to acknowledge the discoverer.

View our PSIRT policy on the PSIRT website by clicking About PSIRT.
Resources

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Disclaimer
The information provided in this Security Bulletin is provided as is without warranty of any kind. McAfee Enterprise disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall McAfee Enterprise or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if McAfee Enterprise or its suppliers have been advised of the possibility of such damages. Some states don’t allow the exclusion or limitation of liability for consequential or incidental damages so the preceding limitation may not apply.

Any future product release dates mentioned in this Security Bulletin are intended to outline our general product direction, and they shouldn’t be relied on in making a purchasing decision. The product release dates are for information purposes only, and may not be incorporated into any contract. The product release dates aren’t a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for our products remains at our sole discretion and may be changed or canceled at any time.