Advisory Details

February 10th, 2021

McAfee Total Protection Directory Junction Denial-of-Service Vulnerability

ZDI-21-175
ZDI-CAN-12081

CVE ID CVE-2021-23873
CVSS SCORE 6.1, AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
AFFECTED VENDORS McAfee
AFFECTED PRODUCTS Total Protection
VULNERABILITY DETAILS

This vulnerability allows local attackers to create a denial-of-service condition on affected installations of McAfee Total Protection. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the implementation of the QuickClean feature. By creating a directory junction, an attacker can abuse QuickClean to delete a file. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

ADDITIONAL DETAILS McAfee has issued an update to correct this vulnerability. More details can be found at:
http://service.mcafee.com/FAQDocument.aspx?&id=TS103114
DISCLOSURE TIMELINE
  • 2020-11-13 - Vulnerability reported to vendor
  • 2021-02-10 - Coordinated public release of advisory
CREDIT Abdelhamid Naceri
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