CVE-2018-1139

high

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

http://www.securityfocus.com/bid/105084

https://access.redhat.com/errata/RHSA-2018:2612

https://access.redhat.com/errata/RHSA-2018:2613

https://access.redhat.com/errata/RHSA-2018:3056

https://access.redhat.com/security/cve/cve-2018-1139

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1139

https://security.netapp.com/advisory/ntap-20180814-0001/

https://usn.ubuntu.com/3738-1/

https://www.samba.org/samba/security/CVE-2018-1139.html

Details

Source: MITRE

Published: 2018-08-22

Updated: 2019-10-09

Type: CWE-522

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.2

Severity: HIGH