Red Hat samba

CVE-2019-14870
MEDIUM 5.4

En bref

Source
NVD
EPSS
EPSS 2.67 % · centile 86 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Modified

Description

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.

Faiblesses (CWE)

  • CWE-285 — Autorisation incorrecte
  • CWE-287 — Authentification incorrecte

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.0MEDIUM 5.4CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Nredhat
CVSS 3.1MEDIUM 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NNVD · nvd@nist.gov (Primary)
CVSS 3.0MEDIUM 5.4CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NNVD · secalert@redhat.com (Secondary)
CVSS 2.0MEDIUM 6.4AV:N/AC:L/Au:N/C:P/I:P/A:NNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Red Hat · sambaaffected all versions 4.11.x before 4.11.3 ; affected all versions 4.10.x before 4.10.11 ; affected all versions 4.x.x before 4.9.17

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD