{"id":"CVE-2023-3326","details":"pam_krb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket (tgt) from the Kerberos KDC (Key Distribution Center) over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pam_krb5 has no way to validate the response from the KDC, and essentially trusts the tgt provided over the network as being valid. In a non-default FreeBSD installation that leverages pam_krb5 for authentication and does not have a keytab provisioned, an attacker that is able to control both the password and the KDC responses can return a valid tgt, allowing authentication to occur for any user on the system.\n","modified":"2026-03-15T13:45:17.339402Z","published":"2023-06-22T17:15:44.833Z","references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230714-0005/"},{"type":"ADVISORY","url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-23:04.pam_krb5.asc"},{"type":"ADVISORY","url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-23:09.pam_krb5.asc"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-3326.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"12.4"}]},{"events":[{"introduced":"13.0"},{"fixed":"13.1"}]},{"events":[{"introduced":"0"},{"last_affected":"12.4-NA"}]},{"events":[{"introduced":"0"},{"last_affected":"12.4-p1"}]},{"events":[{"introduced":"0"},{"last_affected":"12.4-p2"}]},{"events":[{"introduced":"0"},{"last_affected":"12.4-rc2\\-p1"}]},{"events":[{"introduced":"0"},{"last_affected":"12.4-rc2\\-p2"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-NA"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-b1\\-p1"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-b2\\-p2"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-p1"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-p2"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-p3"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-p4"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-p5"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-p6"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-p7"}]},{"events":[{"introduced":"0"},{"last_affected":"13.1-rc1\\-p1"}]},{"events":[{"introduced":"0"},{"last_affected":"13.2-NA"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}