PT-2021-15589 · Mcafee · Mcafee Data Loss Prevention Endpoint

Published 2021-04-15 · Updated 2023-11-15 · CVE-2021-23887

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: McAfee Data Loss Prevention (DLP) Endpoint for Windows versions prior to 11.6.100

Description: A local, low-privileged attacker can exploit this issue to write to arbitrary controlled kernel addresses. This is achieved by launching applications, suspending them, modifying the memory, and restarting them when they are monitored by McAfee DLP through the hdlphook driver.

Recommendations: For versions prior to 11.6.100, update to version 11.6.100 or later to resolve the issue. As a temporary workaround, consider restricting access to the hdlphook driver to minimize the risk of exploitation.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2021-23887

Affected Products

Mcafee Data Loss Prevention Endpoint

References · 5

• https://osv.dev/vulnerability/CVE-2021-23887 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-23887 · Security Note
• https://kc.mcafee.com/corporate/index?page=content&id=SB10354 · Note
• https://t.me/cvenotify/13255 · Telegram Post
• https://kc.mcafee.com/corporate/index?page=content&id=SB10357 · Note