Privilege escalation in Microsoft Windows AppX Deployment Extensions



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-1385
CWE-ID CWE-264
Exploitation vector Local
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
 Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU22706

Risk: Low

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2019-1385

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the Windows AppX Deployment Extensions improperly performs privilege management. A local user can use a specially crafted application and gain access to system files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1709 10.0.16299.19 - 10 1903 10.0.18362.116

Windows Server: 2019 10.0.17763.1 - 2019 1903

CPE2.3 External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1385


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.



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