CVE-2025-11561
Sssd: sssd default kerberos configuration allows privilege escalation on ad-joined linux systems
HIGH 8.8
En bref
- Source
- NVD
- EPSS
- EPSS 0.80 % · centile 57 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- 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.
Faiblesses (CWE)
- CWE-269 — Gestion incorrecte des privilèges
Références
- https://access.redhat.com/errata/RHSA-2025:19610
- https://access.redhat.com/errata/RHSA-2025:19847
- https://access.redhat.com/errata/RHSA-2025:19848
- https://access.redhat.com/errata/RHSA-2025:19849
- https://access.redhat.com/errata/RHSA-2025:19850
- https://access.redhat.com/errata/RHSA-2025:19851
- https://access.redhat.com/errata/RHSA-2025:19852
- https://access.redhat.com/errata/RHSA-2025:19853
- https://access.redhat.com/errata/RHSA-2025:19854
- https://access.redhat.com/errata/RHSA-2025:19859
- https://access.redhat.com/errata/RHSA-2025:20954
- https://access.redhat.com/errata/RHSA-2025:21020
- https://access.redhat.com/errata/RHSA-2025:21067
- https://access.redhat.com/errata/RHSA-2025:21329
- https://access.redhat.com/errata/RHSA-2025:21795
- https://access.redhat.com/errata/RHSA-2025:22256
- https://access.redhat.com/errata/RHSA-2025:22265
- https://access.redhat.com/errata/RHSA-2025:22277
- https://access.redhat.com/errata/RHSA-2025:22529
- https://access.redhat.com/errata/RHSA-2025:22548
- https://access.redhat.com/errata/RHSA-2025:22724
- https://access.redhat.com/errata/RHSA-2025:23113
- https://access.redhat.com/errata/RHSA-2026:0316
- https://access.redhat.com/errata/RHSA-2026:0677
- https://access.redhat.com/security/cve/CVE-2025-11561
- https://blog.async.sg/kerberos-ldr
- https://bugzilla.redhat.com/show_bug.cgi?id=2402727
- https://github.com/SSSD/sssd/issues/8021
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · secalert@redhat.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2025-33347
- GCVE · GCVE-0-2025-11561
Produits affectés
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |