7.8

CVE-2019-0841

Warnung
Exploit
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Windows Server 2016 Version1803

15.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability

Schwachstelle

A privilege escalation vulnerability exists when Windows AppXSVC improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

Beschreibung

Apply updates per vendor instructions.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 41.4% 0.985
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-59 Improper Link Resolution Before File Access ('Link Following')

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.html
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.html
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.html
Third Party Advisory
Exploit
VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841
Patch
Vendor Advisory
https://www.exploit-db.com/exploits/46683/
Third Party Advisory
Exploit
VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-19-360/
Third Party Advisory
VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0841
US Government Resource