A flaw was found in the integration of Active Directory and the System Security Services Daemon (SSSD) on Linux systems. In default configurations, SSSD does not enable the Kerberos local authentication plugin (sssd_krb5_localauth_plugin), allowing an attacker with permission to modify certain AD attributes (such as userPrincipalName or samAccountName) to impersonate privileged users. This can result in unauthorized access or privilege escalation on domain-joined Linux hosts.
History

Fri, 10 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Thu, 09 Oct 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 09 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in the integration of Active Directory and the System Security Services Daemon (SSSD) on Linux systems. In default configurations, SSSD does not enable the Kerberos local authentication plugin (sssd_krb5_localauth_plugin), allowing an attacker with permission to modify certain AD attributes (such as userPrincipalName or samAccountName) to impersonate privileged users. This can result in unauthorized access or privilege escalation on domain-joined Linux hosts.
Title Sssd: sssd default kerberos configuration allows privilege escalation on ad-joined linux systems
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-269
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2025-10-09T13:37:53.089Z

Updated: 2025-10-10T03:55:24.952Z

Reserved: 2025-10-09T13:03:30.189Z

Link: CVE-2025-11561

cve-icon Vulnrichment

Updated: 2025-10-09T13:51:06.747Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-09T14:15:54.447

Modified: 2025-10-09T15:50:04.013

Link: CVE-2025-11561

cve-icon Redhat

Severity : Important

Publid Date: 2025-10-09T00:00:00Z

Links: CVE-2025-11561 - Bugzilla