Multiple vulnerabilities in Microsoft Windows Hyper-V



Published: 2020-04-14 | Updated: 2023-06-22
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2020-0910
CVE-2020-0917
CVE-2020-0918
CWE-ID CWE-20
CWE-119
Exploitation vector Local network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
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 3 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU26776

Risk: Medium

CVSSv3.1: 7.6 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-0910

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in the Windows Hyper-V on a host server. A remote administrator on the local network can run a specially crafted application on a guest operating system and execute arbitrary code.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1809 - 10 1909

Windows Server: 2019 - 2019 1909

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0910


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Buffer overflow

EUVDB-ID: #VU26777

Risk: Medium

CVSSv3.1: 7.6 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-0917

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error in the Windows Hyper-V on a host server. A remote administrator on the local network can trigger memory corruption and gain elevated privileges on a target operating system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1809 - 10 1909

Windows Server: 2019 - 2019 1909

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0917


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Buffer overflow

EUVDB-ID: #VU26778

Risk: Medium

CVSSv3.1: 7.3 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0918

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the Windows Hyper-V on a host server. A remote administrator on the local network can trigger memory corruption and gain elevated privileges on a target operating system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1809 - 10 1909

Windows Server: 2019 - 2019 1909

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0918


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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