Vulnerability CVE-2018-1139
Published: 2018-08-22

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.

Type:

CWE-522

 (Insufficiently Protected Credentials)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Samba -> Samba 
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux workstation 
Canonical -> Ubuntu linux 

 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
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