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NTAP-20211215-0001 — CVE-2021-45046 Apache Log4j Vulnerability in NetApp Products

Published 2021-12-15 · Updated 2022-06-21 · Status: Final · Exploitation: Public · Severity: CRITICAL 9.0 · ONTAP affected: Yes

Official advisory: NTAP-20211215-0001 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Brocade SAN firmware · NetApp Console / BlueXP · SolidFire / NetApp HCI · ONTAP · OnCommand family · SnapCenter  |  ONTAP-relevant  |  highest CVSS: 9.0

CVEs in this advisory

What the CVE records say

CVE-2021-45046 — It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS). <br><br> NetApp SolidFire, Enterprise SDS & HCI Storage Node (Element Software) is affected only when the “Virtual Volumes (vVols)” feature is enabled on the cluster.

Affected products

Official fixes

References

What to do

  1. 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.
  2. If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
  3. If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
  4. Harden in parallel: security hardening baseline and ransomware protection on ONTAP.

Related reading

Browse all ONTAP CVEs → · Security hub