Microsoft Windows up to Server 2019 CSC Service privileges management

Summaryinfo

A vulnerability labeled as critical has been found in Microsoft Windows. This affects an unknown part of the component CSC Service. The manipulation results in privileges management. This vulnerability was named CVE-2020-0771. The attack may be performed from remote. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System). It has been classified as critical. Affected is an unknown part of the component CSC Service. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An elevation of privilege vulnerability exists when the Windows CSC Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows CSC Service Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0769.

The weakness was presented 03/10/2020 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release was coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2020-0771. It is possible to launch the attack remotely. A authentication is necessary 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 03/11/2020). This vulnerability is assigned to T1068 by the MITRE ATT&CK project. The advisory points out:

An elevation of privilege vulnerability exists when the Windows CSC Service improperly handles memory.

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

See VDB-151102, VDB-151101, VDB-151100 and VDB-151099 for similar entries. 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

• 7 SP1
• 8.1
• 10
• 10 1607
• 10 1709
• 10 1803
• 10 1809
• 10 1903
• 10 1909
• RT 8.1
• Server 1803
• Server 1903
• Server 1909
• Server 2008 R2 SP1
• Server 2008 SP2
• Server 2012
• Server 2012 R2
• Server 2016
• Server 2019

License

• commercial

Website

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

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

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