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NTAP-20170228-0002 — CVE-2016-5374 Missing SMB Authorization Check Vulnerability in ONTAP 9

Published 2017-02-28 · Updated 2017-02-28 · Status: Final · Exploitation: Not public · Severity: HIGH 8.8 · ONTAP affected: Yes

Official advisory: NTAP-20170228-0002 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: ONTAP | ONTAP-relevant | highest CVSS: 8.8

CVEs in this advisory

CVE-2016-5374 — HIGH · CVSS 8.8 · site index

What the CVE records say

CVE-2016-5374 — NetApp Data ONTAP 9.0 and 9.1 before 9.1P1 allows remote authenticated users that own SMB-hosted data to bypass intended sharing restrictions by leveraging improper handling of the owner_rights ACL entry.

Impact

ONTAP 9.0 and 9.1 do not prevent the owner of SMB hosted data from modifying the ACL when the owner_rights ACL entry is present, thus defeating any previously configured security configuration.

Affected products

Clustered Data ONTAP

Official fixes

Clustered Data ONTAP — vendor fix ↗

What to do

Check the affected products listed above against the official advisory's affected-versions table — that is where the exact ONTAP 9 release, ONTAP tool, or management product versions are named.
If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
Harden in parallel: security hardening baseline and ransomware protection on ONTAP.