PT-2021-5646 · Microsoft · Windows Appcontainer+1

Alex Ionescu · CVE-2021-34459 · Published 2021-07-13 · Updated 2023-12-28

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 AppContainer (affected versions not specified)

Description The issue is related to insufficient access restrictions in the Windows AppContainer isolated environment, allowing an attacker to bypass security restrictions and elevate their privileges. An elevation-of-privilege vulnerability exists, enabling attackers to affect the system.

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:2022-00084

CVE-2021-34459

Affected Products

Windows

Windows Appcontainer

References · 10

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-34459 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34459 · Security Note
• https://bdu.fstec.ru/vul/2022-00084 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34459 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34459 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-34459 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34459 · Security Note
• https://cybersecurity-help.cz/vdb/SB2021071341 · Note
• https://t.me/cibsecurity/26235 · Telegram Post
• https://t.me/cvenotify/17781 · Telegram Post