Microsoft Windows up to RT 8.1 Remote Desktop input validation

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Windows up to RT 8.1. This vulnerability affects unknown code of the component Remote Desktop. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2019-0788. The attack can be launched remotely. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Windows up to RT 8.1 (Operating System). This vulnerability affects an unknown functionality of the component Remote Desktop. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A remote code execution vulnerability exists in the Windows Remote Desktop Client when a user connects to a malicious server, aka 'Remote Desktop Client Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0787, CVE-2019-1290, CVE-2019-1291.

The weakness was disclosed 09/10/2019 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with the vendor. This vulnerability was named CVE-2019-0788 since 11/26/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. 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 08/19/2020). The advisory points out:

A remote code execution vulnerability exists in the Windows Remote Desktop Client when a user connects to a malicious server. An attacker who successfully exploited this vulnerability could execute arbitrary code on the computer of the connecting client. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

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-141563, VDB-141561 and VDB-141560 are pretty similar. 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

• 8.1
• 10
• 10 1607
• 10 1703
• 10 1709
• 10 1803
• 10 1809
• 10 1903
• RT 8.1

License

• commercial

Website

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

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Entryinfo

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

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