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NTAP-20181221-0001 — CVE-2018-15919 OpenSSH Vulnerability in NetApp Products

Published 2018-12-21 · Updated 2022-01-06 · Status: Final · Exploitation: Public · Severity: MEDIUM 5.3 · ONTAP affected: Yes

Official advisory: NTAP-20181221-0001 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Other NetApp products · ONTAP · Cloud Backup / AltaVault / SteelStore | ONTAP-relevant | highest CVSS: 5.3

CVEs in this advisory

CVE-2018-15919 — MEDIUM · CVSS 5.3 · site index

What the CVE records say

CVE-2018-15919 — Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information.

Affected products

Cluster Network Switch (NetApp CN1610)
Data ONTAP Edge
NetApp Cloud Backup (formerly AltaVault)
NetApp SteelStore Cloud Integrated Storage

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.