PT-2022-2475 · Microsoft · Active Directory Certificate Services+2

Raphael John · Published 2022-05-10 · Updated 2026-03-01 · CVE-2022-26925

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows LSA versions prior to the fixed version

Description The issue is related to a spoofing vulnerability in the Windows LSA component, allowing attackers to bypass authentication mechanisms. This can enable a remote attacker to perform a "man-in-the-middle" attack by relaying NTLM to Active Directory Certificate Services (AD CS). The vulnerability is actively exploited.

Recommendations For Windows LSA versions prior to the fixed version, update to the latest version to resolve the issue. As a temporary workaround, consider restricting access to domain controllers to minimize the risk of exploitation.

Fix

Spoofing

Missing Authentication

Authentication Bypass by Spoofing

Weakness Enumeration

CWE-306

CWE-290

Related Identifiers

BDU:2022-02882

CVE-2022-26925

Affected Products

Active Directory Certificate Services

Windows

Windows Lsa

References · 25

• https://nvd.nist.gov/vuln/detail/CVE-2022-26925 · Security Note
• https://bdu.fstec.ru/vul/2022-02882 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26925 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-26925 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26925 · Security Note
• https://osv.dev/vulnerability/CVE-2022-26925 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-26925 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2022-26925 · Vendor Advisory
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26925 · Note
• https://cisa.gov/known-exploited-vulnerabilities-catalog · Note
• https://support.microsoft.com/en-us/topic/kb5005413-mitigating-ntlm-relay-attacks-on-active-directory-certificate-services-ad-cs-3612b773-4043-4aa9-b23d-b87910cd3429 · Note
• https://t.me/cvenotify/30479 · Telegram Post
• https://t.me/tomhunter/1038 · Telegram Post
• https://t.me/pentestingnews/23042 · Telegram Post
• https://t.me/poxek/2376 · Telegram Post