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NTAP-20210629-0003 — CVE-2021-3426 Python Vulnerability in NetApp Products

Published 2021-06-29 · Updated 2024-03-04 · Status: Final · Exploitation: Public · Severity: MEDIUM 5.7 · ONTAP affected: Yes

Official advisory: NTAP-20210629-0003 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Cloud Backup / AltaVault / SteelStore · ONTAP · SnapCenter | ONTAP-relevant | highest CVSS: 5.7

CVEs in this advisory

CVE-2021-3426 — MEDIUM · CVSS 5.7 · site index

What the CVE records say

CVE-2021-3426 — There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information. <br><br> ONTAP 9 (formerly Clustered Data ONTAP):<br> Affected only in versions 9.9.1 and 9.8.

Affected products

NetApp Cloud Backup (formerly AltaVault)
ONTAP 9 (formerly Clustered Data ONTAP)
ONTAP Select Deploy administration utility
SnapCenter

Official fixes

ONTAP Select Deploy administration utility — vendor fix ↗
SnapCenter — vendor fix ↗
ONTAP 9 (formerly Clustered Data ONTAP) — vendor fix ↗
ONTAP 9 (formerly Clustered Data ONTAP) — vendor fix ↗
ONTAP 9 (formerly Clustered Data ONTAP) — vendor fix ↗
ONTAP 9 (formerly 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.