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OpenAdvisories
High MSRC-CVE-2023-36777 1 CVE

Microsoft Exchange Server Information Disclosure Vulnerability

Published Sep 12, 2023 · Updated Sep 12, 2023

Vendor: Microsoft

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation More Likely. Customer action: Required.

Details

According to the CVSS metric, the attack vector is adjacent (AV:A). What does that mean for this vulnerability?
An authenticated attacker could exploit this vulnerability with LAN access.

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 file content.

According to the CVSS metric, privileges required is low (PR:L). Does the attacker need to be in an authenticated role on the Exchange Server?
Yes, the attacker must be authenticated with LAN-access and have credentials for a valid Exchange user.

What updates do I need to install to be protected from this vulnerability?
Customers need to install the August 2023 Exchange security updates which are listed in the Security Updates table. Customers who have already August 2023 security updates are already protected from this vulnerability.
Yes, please see September 2023 release of new Exchange Server CVEs for more information.

Security updates
15.02.1118.037 — https://support.microsoft.com/help/5030524

Vulnerabilities 1

Revision history

  1. #1

    Information published. This CVE was addressed by updates that were released in August 2023, but the CVE was inadvertently omitted from the August 2023 Security Updates. Microsoft strongly recommends that customers running affected versions of Microsoft Exchange Server install the August 2023 updates to be protected from this vulnerability.

References