Multiple vulnerabilities in Microsoft Windows Hyper-V



Published: 2021-10-12
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-40461
CVE-2021-38672
CWE-ID CWE-94
Exploitation vector Local network
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 information about 2 vulnerabilities.

1) Code Injection

EUVDB-ID: #VU57307

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-40461

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in Windows Hyper-V. A remote authenticated attacker on the local network can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 11 21H2

Windows Server: 2019 - 2019 2004


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40461

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Code Injection

EUVDB-ID: #VU57308

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-38672

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in Windows Hyper-V. A remote authenticated attacker on the local network can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 11 21H2

Windows Server: 2022


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38672

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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