Summaryinfo

A vulnerability was found in Microsoft Windows up to Server 2019. It has been rated as critical. This issue affects some unknown processing of the component Hyper-V. The manipulation leads to privileges management. The identification of this vulnerability is CVE-2020-0918. Access to the local network is required for this attack to succeed. There is no exploit available. It is recommended to apply a patch to fix this issue. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability was found in Microsoft Windows up to Server 2019 (Operating System). It has been declared as critical. This vulnerability affects an unknown code block of the component Hyper-V. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An elevation of privilege vulnerability exists when Windows Hyper-V on a host server fails to properly handle objects in memory, aka 'Windows Hyper-V Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0917.

The weakness was shared 04/14/2020 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability was named CVE-2020-0918. Access to the local network is required for this attack. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 04/15/2020). This vulnerability is assigned to T1068 by the MITRE ATT&CK project. The advisory points out:

An elevation of privilege vulnerability exists when Windows Hyper-V on a host server fails to properly handle objects in memory. An attacker who successfully exploited these vulnerabilities could gain elevated privileges on a target operating system.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-153213 and VDB-153212 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• 10 1809
• 10 1903
• 10 1909
• Server 1903
• Server 1909
• Server 2019

License

• commercial

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