CVE-2025-11561
CVE-2025-11561: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh8.8
High [CVE-2025-11561] Sssd: sssd default kerberos configuration allows privilege escalation on ad-joined linux systems
CVE-2025-11561Source published Source updated
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. The Red Hat Product Security team has assessed this issue as High severity for domain-joined Linux systems using default SSSD configurations. This could lead to unauthorized access or elevated privileges on affected Linux hosts. Administrators are advised to…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat Enterprise Linux 8.2 Advanced Update Support
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
23 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- sssd-0:2.10.2-3.el10_0.3
- sssd-0:2.11.1-2.el10_1.1
- sssd-0:1.16.5-10.el7_9.17
- sssd-0:2.9.4-5.el8_10.3
40 more entries in the full advisory.
- Mitigation guidance
- To mitigate this issue, ensure the SSSD Kerberos local authentication plugin (sssd_krb5_localauth_plugin) is configured and the an2ln plugin is disabled by adding "disable = an2ln" in a krb5 include file, for example /var/lib/sss/pubconf/krb5.include.d/localauth_plugin and make sure it is included in the Kerberos configuration. Apply vendor updates and follow Red Hat guidance for SSSD hardening.
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