Privilege escalation in Microsoft Windows



Published: 2020-04-14
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-1027
CWE-ID CWE-119
Exploitation vector Local
Public exploit This vulnerability is being exploited in the wild.
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 medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU26817

Risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2020-1027

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a local user to escalate privilege so the system.

The vulnerability exists due to a boundary error in the Windows Kernel when handling objects in memory. A local user can use a specially crafted application, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.

Note, this vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7 - 10 1909

Windows Server: 2008 - 2019 1909


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1027

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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