PT-2021-4994 · Microsoft · Windows Appx Deployment Server+1

Abdelhamid Naceri · Published 2021-09-01 · Updated 2023-08-01 · CVE-2021-41347

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 AppX Deployment Service (affected versions not specified)

Description The issue is related to insufficient access restrictions in the Windows AppX Deployment Service, which can be exploited to elevate privileges. This allows 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-264

CWE-269

Related Identifiers

BDU:2021-05757

CVE-2021-41347

ZDI-21-1161

Affected Products

Windows

Windows Appx Deployment Server

References · 10

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41347 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-1161 · Security Note
• https://bdu.fstec.ru/vul/2021-05757 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-41347 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-41347 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41347 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-41347 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-41347 · Vendor Advisory
• https://t.me/cibsecurity/30492 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021101233 · Note