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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2019-14870 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-287 Improper Authentication cwe source acceptance level NIST  
CWE-285 Improper Authorization Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

14 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-14870
NVD Published Date:
12/10/2019
NVD Last Modified:
11/06/2023
Source:
Red Hat, Inc.