CVE-2023-32083: Microsoft Failover Cluster Information Disclosure Vulnerability

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C

Category

Information Disclosure

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2023-Jul

Released

2023-07-11

EPSS Score

0.41% (percentile: 61.4%)

FAQ

What type of information could be disclosed by this vulnerability? An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory. According to the CVSS metric, privileges required is high (PR:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires the attacker or targeted user to have specific elevated privileges. Only users with roles “Cluster Admin” and “Cluster Operator” can access this.

Affected Products (6)

Windows

• Windows Server 2019
• Windows Server 2019 (Server Core installation)
• Windows Server 2022
• Windows Server 2022 (Server Core installation)
• Windows Server 2016
• Windows Server 2016 (Server Core installation)

Security Updates (3)

• 5028168
• 5028171
• 5028169

Acknowledgments

<a href="https://twitter.com/keyz3r0">k0shl</a> with <a href="https://www.cyberkl.com/">Kunlun Lab</a>

Revision History

• 2023-07-11: Information published.