Microsoft Windows 2012/2012 R2/2016/Server 2008 R2 SP1 Hyper-V RemoteFX vGPU input validation

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Windows 2012/2012 R2/2016/Server 2008 R2 SP1. Affected is an unknown function of the component Hyper-V RemoteFX vGPU. Such manipulation leads to input validation. This vulnerability is referenced as CVE-2020-1032. The attack needs to be initiated within the local network. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows 2012/2012 R2/2016/Server 2008 R2 SP1 (Operating System). Affected by this issue is an unknown functionality of the component Hyper-V RemoteFX vGPU. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1036, CVE-2020-1040, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043.

The weakness was published 07/14/2020 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release has been coordinated with the vendor. This vulnerability is handled as CVE-2020-1032. The attack can only be done within the local network. The successful exploitation needs a simple authentication. 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 07/15/2020). The advisory points out:

A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system. To exploit the vulnerability, an attacker could run a specially crafted application on a guest operating system, attacking certain third-party video drivers running on the Hyper-V host. This could then cause the host operating system to execute arbitrary code.

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

Similar entries are available at VDB-157974, VDB-157973, VDB-157972 and VDB-157971. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• 2012
• 2012 R2
• 2016
• Server 2008 R2 SP1

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://www.microsoft.com/en-us/windows

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion