PT-2021-4391 · Microsoft · Windows Common Log File System Driver+1

Asuka + 1 · Published 2021-10-12 · Updated 2023-08-01 · CVE-2021-40443

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 Windows Common Log File System Driver (affected versions not specified)

Description The issue is related to errors in privilege management. It allows an attacker to gain system privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Improper Privilege Management

Weakness Enumeration

CWE-264

CWE-269

Related Identifiers

BDU:2021-05021

CVE-2021-40443

Affected Products

Windows

Windows Common Log File System Driver

References · 8

• https://osv.dev/vulnerability/CVE-2021-40443 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05021 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-40443 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40443 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40443 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40443 · Security Note
• http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40443 · Note
• https://t.me/cibsecurity/30484 · Telegram Post