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CVE-2025-11561

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

HIGH 8.8

At a glance

Source
NVD
EPSS
EPSS 0.80 % · percentile 57 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Deferred

Description

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.

Weaknesses (CWE)

  • CWE-269 — Improper Privilege Management

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hredhat
CVSS 3.1HIGH 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · secalert@redhat.com (Secondary)

European references

Affected products

ProductVersions
sssdaffected 0 ≤ 2.11.1
Red Hat · Red Hat Enterprise Linux 10unaffected 0:2.10.2-3.el10_0.3 < *
Red Hat · Red Hat Enterprise Linux 10unaffected 0:2.11.1-2.el10_1.1 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:1.16.5-10.el7_9.17 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:2.9.4-5.el8_10.3 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:2.9.4-5.el8_10.3 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:2.2.3-20.el8_2.3 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:2.4.0-9.el8_4.4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:2.4.0-9.el8_4.4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:2.6.2-4.el8_6.4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 0:2.6.2-4.el8_6.4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 0:2.6.2-4.el8_6.4 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:2.8.2-4.el8_8.3 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:2.8.2-4.el8_8.3 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:2.9.7-4.el9_7.1 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:2.9.7-4.el9_7.1 < *
Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutionsunaffected 0:2.6.2-4.el9_0.4 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:2.8.2-5.el9_2.6 < *
Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Supportunaffected 0:2.9.4-6.el9_4.4 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:2.9.6-4.el9_6.3 < *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD