Description
A flaw was found in the way samba before 4.7.9 and 4.8.4 allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client.
References (9)
Core 9
Core References
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:2613
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3738-1/
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:2612
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1139
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/105084
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3056
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20180814-0001/
Third Party Advisory x_refsource_confirm
https://www.samba.org/samba/security/CVE-2018-1139.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202003-52
Scores
CVSS v3
8.1
EPSS
0.0162
EPSS Percentile
82.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-522
CWE-20
Status
published
Products (7)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
7.0
redhat/enterprise_linux_workstation
7.0
samba/samba
4.7.0 - 4.7.9
Published
Aug 22, 2018
Tracked Since
Feb 18, 2026