CVE-2018-1139
HIGH severity · CVSS 8.1 · Improper input validation
8.1CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)3%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.securityfocus.com/bid/105084Advisory
- https://access.redhat.com/errata/RHSA-2018:2612Advisory
- https://access.redhat.com/errata/RHSA-2018:2613Advisory
- https://access.redhat.com/errata/RHSA-2018:3056Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1139Advisory
- https://security.gentoo.org/glsa/202003-52Advisory
- https://security.netapp.com/advisory/ntap-20180814-0001/Advisory
- https://usn.ubuntu.com/3738-1/Advisory