CVE-2018-1139
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 3.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.1% in the next 30 days (EPSS).
- Severity: 8.1 HIGH (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 3.1% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Samba < 4.7.9
- Samba < 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
Attack profile CVSS 3.1 · 8.1
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2018-1139.md and follow it. Check whether this project is affected by CVE-2018-1139. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
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://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
- 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