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CVE-2025-11561

Sssd: sssd default kerberos configuration allows privilege escalation on ad-joined linux systems PUBLISHED

Description (CNA)

A flaw was found in the integration of Active Directory and the System Security Services Daemon (SSSD) on Linux systems. In default configurations, the Kerberos local authentication plugin (sssd_krb5_localauth_plugin) is enabled, but a fallback to the an2ln plugin is possible. This fallback allows an attacker with permission to modify certain AD attributes (such as userPrincipalName or samAccountName) to impersonate privileged users, potentially resulting in unauthorized access or privilege escalation on domain-joined Linux hosts.

Affected (CNA)

Vendor / productVersions
Not supplied / Not suppliedaffected 0 through 2.11.1
Red Hat / Red Hat Enterprise Linux 10unaffected 0:2.10.2-3.el10_0.3 before *
Red Hat / Red Hat Enterprise Linux 10unaffected 0:2.11.1-2.el10_1.1 before *
Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:1.16.5-10.el7_9.17 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:2.9.4-5.el8_10.3 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:2.9.4-5.el8_10.3 before *
Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:2.2.3-20.el8_2.3 before *
Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:2.4.0-9.el8_4.4 before *
Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:2.4.0-9.el8_4.4 before *
Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:2.6.2-4.el8_6.4 before *
Red Hat / Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 0:2.6.2-4.el8_6.4 before *
Red Hat / Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 0:2.6.2-4.el8_6.4 before *
Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:2.8.2-4.el8_8.3 before *
Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:2.8.2-4.el8_8.3 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:2.9.7-4.el9_7.1 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:2.9.7-4.el9_7.1 before *
Red Hat / Red Hat Enterprise Linux 9.0 Update Services for SAP Solutionsunaffected 0:2.6.2-4.el9_0.4 before *
Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:2.8.2-5.el9_2.6 before *
Red Hat / Red Hat Enterprise Linux 9.4 Extended Update Supportunaffected 0:2.9.4-6.el9_4.4 before *
Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:2.9.6-4.el9_6.3 before *
Red Hat / Red Hat OpenShift Container Platform 4.12unaffected 412.86.202601061735-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.13unaffected 413.92.202601130113-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.14unaffected 414.92.202511122212-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.15unaffected 415.92.202512100122-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.16unaffected 416.94.202512030118-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.17unaffected 417.94.202511260612-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.18unaffected 418.94.202511170715-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.19unaffected 4.19.9.6.202511252219-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.20unaffected 4.20.9.6.202511252309-0 before *
Red Hat / Red Hat Ceph Storage 7unaffected 7 before *
Red Hat / Red Hat Ceph Storage 8unaffected 8 before *
Red Hat / Red Hat Enterprise Linux 6unknown
Red Hat / Red Hat OpenShift Container Platform 4affected

CWE

CWE-269

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.