SB2023080872 - Remote code execution in Microsoft Exchange Server



SB2023080872 - Remote code execution in Microsoft Exchange Server

Published: August 8, 2023

Security Bulletin ID SB2023080872
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Input validation error (CVE-ID: CVE-2023-35368)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can access a user's Net-NTLMv2 hash and execute arbitrary code on the system.


Remediation

Install update from vendor's website.