6.4

CVE-2019-14870

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Samba ≫ Samba Version >= 4.0.0 < 4.9.17
Samba ≫ Samba Version >= 4.10.0 < 4.10.11
Samba ≫ Samba Version >= 4.11.0 < 4.11.3
Fedoraproject ≫ Fedora Version 30
Fedoraproject ≫ Fedora Version 31
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 19.04
Canonical ≫ Ubuntu Linux Version 19.10
Debian ≫ Debian Linux Version 9.0
Debian ≫ Debian Linux Version 10.0
Opensuse ≫ Leap Version 15.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.78% 0.845
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.4 2.8 2.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NIST 6.4 10 4.9
AV:N/AC:L/Au:N/C:P/I:P/A:N
RedHat 5.4 2.8 2.5
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE-285 Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

https://security.gentoo.org/glsa/202003-52
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/
https://security.netapp.com/advisory/ntap-20191210-0002/
Third Party Advisory
https://usn.ubuntu.com/4217-1/
Third Party Advisory
https://usn.ubuntu.com/4217-2/
Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_40
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14870
Third Party Advisory
Issue Tracking
https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html
Third Party Advisory
Mailing List
https://security.gentoo.org/glsa/202310-06
https://security.netapp.com/advisory/ntap-20230216-0008/
https://www.samba.org/samba/security/CVE-2019-14870.html
Vendor Advisory