High severity · published Apr 9, 2019
CVE-2019-0841
Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability
RansomwareIn wildKEV
7.8
CVSS
41.4%
EPSS
Yes
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)41.4% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 15, 2022
Federal remediation dueApr 5, 2022
Ransomware campaign useKnown
Affected products
Which versions
WI
Windows · Microsoft
10 Version 1703 for 32-bit Systems; 10 Version 1703 for x64-based Systems; 10 Version 1709 for 32-bit Systems; 10 Version 1709 for x64-based Systems; 10 Version 1803 for 32-bit Systems; 10 Version 1803 for x64-based Systems; +5 more · source: vendor, KEV
W1
Windows 10 1703 · Microsoft
All versions, or not specified · source: NVD
W1
Windows 10 1709 · Microsoft
All versions, or not specified · source: NVD
W1
Windows 10 1803 · Microsoft
All versions, or not specified · source: NVD
W1
Windows 10 1809 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 2016 · Microsoft
1803 · source: NVD
WS
Windows Server 2019 · Microsoft
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-0841
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-0841
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841
exploit
https://www.exploit-db.com/exploits/46683/
x_refsource_MISC
http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.html
x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-19-360/
x_refsource_MISC
http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.html
x_refsource_MISC
http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html
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