VULNERABILITY INTELLIGENCE

CVE-2022-0336

CVSS score8.8 HIGH
EPSS probability1.75%
CISA KEVNot currently listed
Published2022-08-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an attacker who can intercept traffic can impersonate existing services, resulting in a loss of confidentiality and integrity.

Weakness classification

  • secalert@redhat.com: CWE-276
  • nvd@nist.gov: CWE-276

Primary references