CVE-2023-28277: Windows DNS Server Information Disclosure Vulnerability

Overview

Severity
Medium (CVSS 4.9)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Category
Information Disclosure
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2023-Apr
Released
2023-04-11
EPSS Score
1.33% (percentile: 80.0%)

FAQ

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. As is best practice, regular validation and audits of administrative groups should be conducted. What type of information could be disclosed by this vulnerability? The type of information that could be disclosed if an attacker successfully exploited this vulnerability is memory layout - the vulnerability allows an attacker to collect information that facilitates predicting addressing of the memory.

Affected Products (2)

Windows

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

Security Updates (1)

Acknowledgments

<a href="https://twitter.com/ecthr0s">George Hughey</a> with MSRC Vulnerabilities &amp; Mitigations

Revision History

  • 2023-04-11: Information published.