CVEvulnerability

CVE-2018-1139

8.1 HIGH Published 2018-08-22 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-08-22
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.0 ([email protected])
5.4 MEDIUM — CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-20, CWE-522

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.

Affected configurations

• samba samba (>= 4.7.0 < 4.7.9) • samba samba (>= 4.8.0 < 4.8.4) • 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

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-522 Insufficiently Protected Credentials weakness

References