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NTAP-20230420-0011 — CVE-2023-27533 cURL/libcURL Vulnerability in NetApp Products

Published 2023-04-20 · Updated 2024-05-20 · Status: Final · Exploitation: Public · Severity: HIGH 8.8 · ONTAP affected: Yes

Official advisory: NTAP-20230420-0011 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Active IQ Unified Manager · SolidFire / NetApp HCI · ONTAP  |  ONTAP-relevant  |  highest CVSS: 8.8

CVEs in this advisory

What the CVE records say

CVE-2023-27533 — A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform option negotiation without the application's intent. This vulnerability could be exploited if an application allows user input, thereby enabling attackers to execute arbitrary code on the system.

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> ONTAP 9 (formerly Clustered Data ONTAP):<br> Affected only when TELNET is enabled.

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