CVE-2023-23397 — Microsoft Office Outlook Privilege Escalation Vulnerability
CVE-2023-23397: Microsoft Office Outlook Privilege Escalation Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Microsoft |
| Product | Office |
| Date added | 2023-03-14 |
| Due date | 2023-04-04 |
| Ransomware campaign use | Unknown |
Description
Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.
Required action (CISA)
Apply updates per vendor instructions.
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
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23397
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog