Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Samba | Samba | >= 4.7.0, < 4.7.9 |
| Canonical | Ubuntu Linux | 14.04 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/105084Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2612Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2613Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3056Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1139Issue TrackingThird Party Advisory
- https://security.gentoo.org/glsa/202003-52Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180814-0001/Third Party Advisory
- https://usn.ubuntu.com/3738-1/Third Party Advisory
- https://www.samba.org/samba/security/CVE-2018-1139.htmlThird Party Advisory
- http://www.securityfocus.com/bid/105084Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2612Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2613Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3056Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1139Issue TrackingThird Party Advisory
- https://security.gentoo.org/glsa/202003-52Third Party Advisory
FAQ
What is CVE-2018-1139?
CVE-2018-1139 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 rea...
How severe is CVE-2018-1139?
CVE-2018-1139 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-1139?
Check the references section above for vendor advisories and patch information. Affected products include: Samba Samba, Canonical Ubuntu Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.