Multiple vulnerabilities in Microsoft Hyper-V

Published: 2019-08-14 | Updated: 2019-08-14
Severity Medium
Patch available YES
Number of vulnerabilities 7
CVE ID CVE-2019-0714
CVE-2019-0715
CVE-2019-0717
CVE-2019-0718
CVE-2019-0723
CVE-2019-0720
CVE-2019-0965
CWE ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software Windows Subscribe
Windows Server
Vendor Microsoft

Security Advisory

1) Input validation error

Severity: Low

CVSSv3: 3.7 [CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0714

CWE-ID: CWE-20 - Improper Input Validation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when Microsoft Hyper-V Network Switch on a host server does not properly validate input from a privileged user on a guest operating system.

Successful exploitation of the vulnerability may result denial of service (DoS) attack against the host system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809, 10 1903

Windows Server: 1803, 1903, 2008, 2008 R2, 2012, 2012 R2, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0714

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.

2) Input validation error

Severity: Low

CVSSv3: 3.7 [CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0715

CWE-ID: CWE-20 - Improper Input Validation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when Microsoft Hyper-V Network Switch on a host server does not properly validate input from a privileged user on a guest operating system.

Successful exploitation of the vulnerability may result denial of service (DoS) attack against the host system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809, 10 1903

Windows Server: 1803, 1903, 2008, 2008 R2, 2012, 2012 R2, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0715

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.

3) Input validation error

Severity: Low

CVSSv3: 3.7 [CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0717

CWE-ID: CWE-20 - Improper Input Validation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when Microsoft Hyper-V Network Switch on a host server does not properly validate input from a privileged user on a guest operating system.

Successful exploitation of the vulnerability may result denial of service (DoS) attack against the host system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 10 1809, 10 1903

Windows Server: 1903, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0717

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.

4) Input validation error

Severity: Low

CVSSv3: 3.9 [CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0718

CWE-ID: CWE-20 - Improper Input Validation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when Microsoft Hyper-V Network Switch on a host server does not properly validate input from a privileged user on a guest operating system.

Successful exploitation of the vulnerability may result denial of service (DoS) attack against the host system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809, 10 1903, RT 8.1

Windows Server: 1803, 1903, 2012, 2012 R2, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0718

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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

5) Input validation error

Severity: Low

CVSSv3: 3.9 [CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0723

CWE-ID: CWE-20 - Improper Input Validation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when Microsoft Hyper-V Network Switch on a host server does not properly validate input from a privileged user on a guest operating system.

Successful exploitation of the vulnerability may result denial of service (DoS) attack against the host system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809, 10 1903

Windows Server: 1803, 1903, 2008 R2, 2012, 2012 R2, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0723

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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

6) Input validation error

Severity: Medium

CVSSv3: 5.9 [CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-0720

CWE-ID: CWE-20 - Improper Input Validation

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of user-supplied input in the Windows Hyper-V Network Switch. A remote authenticated attacker of the guest operating system can execute arbitrary code on the host system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809

Windows Server: 1803, 2008, 2008 R2, 2012, 2012 R2, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0720

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.

7) Input validation error

Severity: Medium

CVSSv3: 5.9 [CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-0965

CWE-ID: CWE-20 - Improper Input Validation

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of user-supplied input in the Windows Hyper-V Network Switch. A remote authenticated attacker of the guest operating system can execute arbitrary code on the host system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1709, 10 1803, 10 1809, 10 1903

Windows Server: 1803, 1903, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0965

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.