The krb5_save_ccname_done function in providers/krb5/krb5_auth.c in System Security Services Daemon (SSSD) 1.5.x before 1.5.7, when automatic ticket renewal and offline authentication are configured, uses a pathname string as a password, which allows local users to bypass Kerberos authentication by listing the /tmp directory to obtain the pathname.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Sssd | Fedoraproject | 1.5.0 (including) | 1.5.0 (including) |
| Sssd | Fedoraproject | 1.5.1 (including) | 1.5.1 (including) |
| Sssd | Fedoraproject | 1.5.2 (including) | 1.5.2 (including) |
| Sssd | Fedoraproject | 1.5.3 (including) | 1.5.3 (including) |
| Sssd | Fedoraproject | 1.5.4 (including) | 1.5.4 (including) |
| Sssd | Fedoraproject | 1.5.5 (including) | 1.5.5 (including) |
| Sssd | Fedoraproject | 1.5.6 (including) | 1.5.6 (including) |
| Sssd | Fedoraproject | 1.5.6.1 (including) | 1.5.6.1 (including) |
| Sssd | Ubuntu | upstream | * |