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CVE-2017-12151

7.4 · HIGH

A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3.

Published Jul 27, 2018CWE-300EPSS 4.10%

Overview

CVE-2017-12151 is a high-severity vulnerability. It was published on July 27, 2018 and has a CVSS 3.0 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/100917Refwww.securitytracker.com/id/1039401Refaccess.redhat.com/errata/RHSA-2017:2790Refaccess.redhat.com/errata/RHSA-2017:2858Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12151Refsecurity.netapp.com/advisory/ntap-20170921-0001/Refsupport.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_usRefwww.debian.org/security/2017/dsa-3983Refwww.samba.org/samba/security/CVE-2017-12151.htmlRefwww.securityfocus.com/bid/100917

How CyberStrike helps

Frequently asked questions

What is CVE-2017-12151?

CVE-2017-12151 is a high-severity vulnerability. It was published on July 27, 2018 and has a CVSS 3.0 base score of 7.4 (HIGH).

How severe is CVE-2017-12151?

This vulnerability has a CVSS 3.0 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-12151?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-12151?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-12151 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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