Microsoft Windows up to Server 2019 Common Log File System Driver information disclosure

Summaryinfo

A vulnerability has been found in Microsoft Windows and classified as problematic. This vulnerability affects unknown code of the component Common Log File System Driver. The manipulation leads to information disclosure. This vulnerability is listed as CVE-2020-0639. The attack may be initiated remotely. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) and classified as problematic. This issue affects an unknown part of the component Common Log File System Driver. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

An information disclosure vulnerability exists in the Windows Common Log File System (CLFS) driver when it fails to properly handle objects in memory, aka 'Windows Common Log File System Driver Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-0615.

The weakness was presented 01/14/2020 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The public release was coordinated in cooperation with Microsoft. The identification of this vulnerability is CVE-2020-0639. The attack may be initiated remotely. A simple authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. The advisory points out:

An information disclosure vulnerability exists in the Windows Common Log File System (CLFS) driver when it fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could potentially read data that was not intended to be disclosed. Note that this vulnerability would not allow an attacker to execute code or to elevate their user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system.

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

See VDB-148614, VDB-148612, VDB-148611 and VDB-148610 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider 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 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 the best quality for vulnerability data then you always have to consider VulDB.

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