CVE intelligence and bounded remediation

CVE-2023-32967 — An incorrect authorization vulnerability has been reported to affect several QNAP operating system versions

Medium CVSS 6.5

An incorrect authorization vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to bypass intended access restrictions via a network. QTS 5.x, QuTS hero are not affected. We have already fixed the vulnerability in the following versions: QuTScloud c5.1.5.2651 and later QTS 4.5.4.2627 build 20231225 and later

Severity
Medium
CVSS
6.5 (3.1)
Published
2024-02-02
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-285, CWE-863

Affected products

  • qnap / qts / 4.5.4.1715
  • qnap / qts / 4.5.4.1723
  • qnap / qts / 4.5.4.1741
  • qnap / qts / 4.5.4.1787
  • qnap / qts / 4.5.4.1800
  • qnap / qts / 4.5.4.1892

Showing 6 representative product identities from 13 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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