PT-2021-6953 · Microsoft · Windows Container Isolation Fs Filter Driver+1

K0Shl · Published 2021-07-13 · Updated 2023-12-28 · CVE-2021-34461

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 Container Isolation FS Filter Driver (affected versions not specified)

Description The issue is related to insufficient access restrictions in the Windows Container Isolation FS Filter Driver, which can be exploited to elevate privileges. This could allow an attacker to affect the system. There is no information provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

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-269

Related Identifiers

BDU:2022-02739

CVE-2021-34461

Affected Products

Windows

Windows Container Isolation Fs Filter Driver

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2021-34461 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34461 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-34461 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34461 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-34461 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02739 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34461 · Vendor Advisory
• https://t.me/cvenotify/17779 · Telegram Post