2021-34509 | Microsoft Windows Storage Spaces Controller information disclosure

By Max On Jul 17, 2021

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4.3	$5k-$25k	0.75

A vulnerability, which was classified as problematic, was found in Microsoft Windows 10 20H2 up to Server 2019 (Operating System). This affects an unknown functionality of the component Storage Spaces Controller. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. This is going to have an impact on confidentiality. The summary by CVE is:

Storage Spaces Controller Information Disclosure Vulnerability

The weakness was shared 07/13/2021 as confirmed security guidance (Website). It is possible to read the advisory at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2021-34509 since 06/09/2021. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/17/2021).

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

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