Privilege escalation in Microsoft Windows Update Client



Published: 2020-04-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-1014
CWE-ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software
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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: #VU26884

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1014

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

Exploit availability: No

Description

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

The vulnerability exists due to Microsoft Windows Update Client does not properly handle privileges. A local user can run a specially crafted application and run processes in an elevated context 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7 - 10 1909

Windows Server: 2008 - 2019 1909

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1014


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?

No. We are not aware of malware exploiting this vulnerability.



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