High severity · published Sep 11, 2019
CVE-2019-1253
Microsoft Windows AppX Deployment Server Privilege Escalation Vulnerability
RansomwareIn wildKEV
7.8
CVSS
11.6%
EPSS
Yes
On KEV
Description
An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1215, CVE-2019-1278, CVE-2019-1303.
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)11.6% · higher than 96% 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 Version 1903 for 32-bit Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1903 for ARM64-based Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1903 for x64-based Systems · Microsoft
All versions, or not specified · source: vendor
WS
Windows Server, version 1903 (Server Core installation) · Microsoft
All versions, or not specified · source: vendor
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
W1
Windows 10 1903 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 1803 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 1903 · Microsoft
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1253
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-1253
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-2019-1253
x_refsource_MISC
http://packetstormsecurity.com/files/154488/AppXSvc-17763.1.amd64fre.rs5_release.180914-1434-Privilege-Escalation.html
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