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CVE-2019-14870

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.

Risk Information

Base Score
5.4
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS Score
Exploitation Probability
4.669

Associated Vulnerability

VulnerabilityOS Platform
SMB/CIFS file, print, and login server for Unix (USN-4217-1) samba_4.10.0+dfsg-0ubuntu2.7_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) samba_4.10.0+dfsg-0ubuntu2.7_amd64.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) samba_4.10.7+dfsg-0ubuntu2.3_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) samba_4.10.7+dfsg-0ubuntu2.3_amd64.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) samba_4.3.11+dfsg-0ubuntu0.16.04.24_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) samba_4.3.11+dfsg-0ubuntu0.16.04.24_amd64.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) samba_4.7.6+dfsg~ubuntu-0ubuntu2.14_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) samba_4.7.6+dfsg~ubuntu-0ubuntu2.14_amd64.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.10.0+dfsg-0ubuntu2.7_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.10.0+dfsg-0ubuntu2.7_amd64.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.10.7+dfsg-0ubuntu2.3_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.10.7+dfsg-0ubuntu2.3_amd64.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.3.11+dfsg-0ubuntu0.16.04.24_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.3.11+dfsg-0ubuntu0.16.04.24_amd64.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.7.6+dfsg~ubuntu-0ubuntu2.14_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.7.6+dfsg~ubuntu-0ubuntu2.14_amd64.debLinux
SUSE-SU-2020:2673-1(SUSE Linux Enterprise Server 12-SP5 ) ldb-debugsource-1.5.8-3.5.1.x86_64.rpmLinux
SUSE-SU-2020:2673-1(SUSE Linux Enterprise Server 12-SP5 ) ldb-tools-1.5.8-3.5.1.x86_64.rpmLinux
SUSE-SU-2020:2673-1(SUSE Linux Enterprise Server 12-SP5 ) ldb-tools-debuginfo-1.5.8-3.5.1.x86_64.rpmLinux
SUSE-SU-2020:2673-1(SUSE Linux Enterprise Server 12-SP5 ) libldb1-1.5.8-3.5.1.x86_64.rpmLinux
SUSE-SU-2020:2673-1(SUSE Linux Enterprise Server 12-SP5 ) libldb1-32bit-1.5.8-3.5.1.x86_64.rpmLinux
SUSE-SU-2020:2673-1(SUSE Linux Enterprise Server 12-SP5 ) libldb1-debuginfo-1.5.8-3.5.1.x86_64.rpmLinux
SUSE-SU-2020:2673-1(SUSE Linux Enterprise Server 12-SP5 ) libldb1-debuginfo-32bit-1.5.8-3.5.1.x86_64.rpmLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.7.6+dfsg~ubuntu-0ubuntu2.14_i386.debLinux
SMB/CIFS file, print, and login server for Unix (USN-4217-1) libsmbclient_4.7.6+dfsg~ubuntu-0ubuntu2.14_amd64.debLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234