CVE-2026-14474

Summary

A flaw was found in SSSD's LDAP sudo provider. When the ldap_sudo_search_base option is not explicitly configured, SSSD searches the entire LDAP directory tree for sudoRole objects. An authenticated attacker with write access to any subtree can inject a sudoRole object granting root-level sudo privileges on all SSSD-enrolled hosts.

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 100:2.12.0-3.el10_2.1 < *unaffected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support0:2.10.2-3.el10_0.5 < *unaffected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support0:1.16.5-10.el7_9.18 < *unaffected
Red HatRed Hat Enterprise Linux 80:2.9.4-5.el8_10.5 < *unaffected
Red HatRed Hat Enterprise Linux 80:2.9.4-5.el8_10.5 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:2.4.0-9.el8_4.5 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On0:2.4.0-9.el8_4.5 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support0:2.6.2-4.el8_6.5 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On0:2.6.2-4.el8_6.5 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service0:2.8.2-4.el8_8.4 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions0:2.8.2-4.el8_8.4 < *unaffected
Red HatRed Hat Enterprise Linux 90:2.9.8-4.el9_8.1 < *unaffected
Red HatRed Hat Enterprise Linux 90:2.9.8-4.el9_8.1 < *unaffected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions0:2.8.2-5.el9_2.7 < *unaffected
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions0:2.9.4-6.el9_4.5 < *unaffected
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support0:2.9.6-4.el9_6.5 < *unaffected
Red HatRed Hat OpenShift Container Platform 4.13413.92.202608111330-0 < *unaffected
Red HatRed Hat OpenShift Container Platform 4.194.19.9.6.202608120446-0 < *unaffected
Red HatRed Hat OpenShift Container Platform 4.204.20.9.6.202608121719-0 < *unaffected
Red HatRed Hat OpenShift Container Platform 4.214.21.9.6.202608122143-0 < *unaffected
Red HatRed Hat OpenShift Container Platform 4.224.22.9.8.202608130832-0 < *unaffected

Weaknesses

  • CWE-1188: Initialization of a Resource with an Insecure Default

Workarounds

Set ldap_sudo_search_base explicitly in /etc/sssd/sssd.conf to restrict the search to the designated sudoers container:

[domain/example.com] ldap_sudo_search_base = ou=sudoers,dc=example,dc=com

Additionally, restrict LDAP ACLs to prevent non-admin principals from creating sudoRole objects outside the designated sudoers container.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References