CVE-2018-1139
High
CVE-2018-1139
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.
Exploit probability
3.1%
Published
August 22, 2018
Required by
Not available
Last source change
July 8, 2026
02 / AFFECTED SOFTWARE
Affected packages
15 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2018-1139
View original source
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.
05 / REFERENCES
Further evidence
- 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://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1139
- https://security.gentoo.org/glsa/202003-52
- https://security.netapp.com/advisory/ntap-20180814-0001/
- https://usn.ubuntu.com/3738-1/
- https://www.samba.org/samba/security/CVE-2018-1139.html