Active Directory Domain Services Elevation of Privilege Vulnerability
Published 2022-05-10 21:15:10
Updated 2025-02-04 19:15:26
View at NVD,   CVE.org
Vulnerability category: Gain privilege

Products affected by CVE-2022-26923

CVE-2022-26923 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Microsoft Active Directory Domain Services Privilege Escalation Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow for privilege escalation to SYSTEM.
Notes:
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-26923; https://nvd.nist.gov/vuln/detail/CVE-2022-26923
Added on 2022-08-18 Action due date 2022-09-08

Exploit prediction scoring system (EPSS) score for CVE-2022-26923

1.15%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 85 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2022-26923

  • Active Directory Certificate Services (ADCS) privilege escalation (Certifried)
    First seen: 2023-09-11
    auxiliary/admin/dcerpc/cve_2022_26923_certifried
    This module exploits a privilege escalation vulnerability in Active Directory Certificate Services (ADCS) to generate a valid certificate impersonating the Domain Controller (DC) computer account. This certificate is then used to authenticate to the target as

CVSS scores for CVE-2022-26923

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.0
HIGH AV:N/AC:L/Au:S/C:C/I:C/A:C
8.0
10.0
NIST
8.8
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.8
5.9
Microsoft Corporation

CWE ids for CVE-2022-26923

  • The product does not validate, or incorrectly validates, a certificate.
    Assigned by:
    • 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2022-26923

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