PT-2021-6199 · Microsoft · Windows

Published 2021-12-14 · Updated 2022-07-12 · CVE-2021-43240

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 (affected versions not specified)

Description The issue is related to insecure privilege management in the NTFS file system of Windows operating systems. It allows an attacker to elevate their privileges. There is no information provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited. The vulnerability is related to the NTFS Set Short Name feature.

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

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

BDU:2022-01115

CVE-2021-43240

Affected Products

Windows

References · 11

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43240 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43240 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-43240 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-01115 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43240 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-43240 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-43240 · Vendor Advisory
• https://t.me/my_cyde/182 · Telegram Post
• https://t.me/cvenotify/30580 · Telegram Post
• https://t.me/true_secator/2447 · Telegram Post
• https://t.me/cibsecurity/34025 · Telegram Post