VDB
CVE-2019-14870
CVE-2019-14870
PUBLISHED
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.
EPSS 4.67% · 89.5th percentile
Risk Scores
EPSS Score
4.67%
89.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | samba | 2:4.3.11+dfsg-0ubuntu0.16.04.8, 2:4.3.11+dfsg-0ubuntu0.16.04.9, 2:4.3.11+dfsg-0ubuntu0.16.04.10 |
| Ubuntu:18.04:LTS | samba | 2:4.7.6+dfsg~ubuntu-0ubuntu2.7, 0, 2:4.6.7+dfsg-1ubuntu3 |
| Ubuntu:Pro:14.04:LTS | samba | 0, 2:4.0.10+dfsg-4ubuntu2, 2:4.1.3+dfsg-2ubuntu2 |
Exploit Intelligence
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14870 (circl)
- USN-4217-1 (circl)
- https://security.netapp.com/advisory/ntap-20191210-0002/ (circl)
- https://www.samba.org/samba/security/CVE-2019-14870.html (circl)
- USN-4217-2 (circl)
- FEDORA-2019-be98a08835 (circl)
- https://www.synology.com/security/advisory/Synology_SA_19_40 (circl)
- openSUSE-SU-2019:2700 (circl)
- FEDORA-2019-11dddb785b (circl)
- GLSA-202003-52 (circl)
…and 4 more exploits
Timeline
- Dec 9, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 8, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Nov 27, 2022 CVE Updated
References
- https://ubuntu.com/security/CVE-2019-14870 third-party-advisory
- https://www.samba.org/samba/security/CVE-2019-14870.html third-party-advisory
- https://ubuntu.com/security/notices/USN-4217-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4217-2 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-14870 third-party-advisory