CVE-2023-23397—Microsoft Office Outlook Privilege Escalation Vulnerability

Vulnerability Name

Microsoft Office Outlook Privilege Escalation Vulnerability

Description

Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

Action

Apply updates per vendor instructions.

Additional Notes

• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23397, https://msrc.microsoft.com/blog/2023/03/microsoft-mitigates-outlook-elevation-of-privilege-vulnerability/,
• https://nvd.nist.gov/vuln/detail/CVE-2023-23397

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Related Weaknesses

• CWE-294