CVE-2019-14870
- State
- Published
- Severity
- 5.4 Medium
- Published
- Dec 10, 2019
- Updated
- Aug 5, 2024
- Reserved
- Aug 10, 2019
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 5.4 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | redhat |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
sambaRed Hat |
|
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14870
- USN-4217-1vendor-advisory
- https://security.netapp.com/advisory/ntap-20191210-0002/
- https://www.samba.org/samba/security/CVE-2019-14870.html
- USN-4217-2vendor-advisory
- FEDORA-2019-be98a08835vendor-advisory
- https://www.synology.com/security/advisory/Synology_SA_19_40
- openSUSE-SU-2019:2700vendor-advisory
- FEDORA-2019-11dddb785bvendor-advisory
- GLSA-202003-52vendor-advisory
- [debian-lts-announce] 20210529 [SECURITY] [DLA 2668-1] samba security updatemailing-list
- [debian-lts-announce] 20221126 [SECURITY] [DLA 3206-1] heimdal security updatemailing-list
- https://security.netapp.com/advisory/ntap-20230216-0008/
- GLSA-202310-06vendor-advisory
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