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Permalink CVE-2025-11561
8.8 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
updated 4 months, 1 week ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse dismissed
Sssd: sssd default kerberos configuration allows privilege escalation on ad-joined linux systems

A flaw was found in the integration of Active Directory and the System Security Services Daemon (SSSD) on Linux systems. In default configurations, SSSD does not enable the Kerberos local authentication plugin (sssd_krb5_localauth_plugin), allowing an attacker with permission to modify certain AD attributes (such as userPrincipalName or samAccountName) to impersonate privileged users. This can result in unauthorized access or privilege escalation on domain-joined Linux hosts.

References

Affected products

sssd
  • =<2.11.1
  • *
rhcos
  • *
rhceph/rhceph-7-rhel9
  • *
rhceph/rhceph-8-rhel9
  • *

Matching in nixpkgs

pkgs.sssd

System Security Services Daemon

Package maintainers

Never impacted the current stable branch

https://github.com/NixOS/nixpkgs/commit/167ebcf138339399754f7a19991d47bc64e76e9d