PT-2019-4144 · Microsoft · Windows Appx Deployment Server+1

Published 2019-12-10 · Updated 2020-08-24 · CVE-2019-1476

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 (AppXSVC) (affected versions not specified)

Description The issue is related to an elevation of privilege vulnerability in the Windows AppX Deployment Service (AppXSVC) due to improper handling of hard links. This vulnerability can be exploited by an attacker to elevate their privileges using a specially crafted application.

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

Exploit

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

BDU:2019-04724

CVE-2019-1476

Affected Products

Windows

Windows Appx Deployment Server

References · 10

• 🔥 https://github.com/sgabe/CVE-2019-1476 · Exploit
• 🔥 https://exploit-db.com/exploits/47768 · Exploit
• 🔥 http://packetstormsecurity.com/files/155653/AppXSvc-17763-Arbitrary-File-Overwrite.html · Exploit
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1476 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1476 · Security Note
• https://osv.dev/vulnerability/CVE-2019-1476 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2019-1476 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1476 · Security Note
• https://bdu.fstec.ru/vul/2019-04724 · Security Note
• https://cxsecurity.com/cveshow/CVE-2019-1476 · Note