dbcve.org
QtsOperating system · Qnap

CVE-2023-32967

MEDIUM · 6.5 CVSS v3.1 Published 2024-02-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

This is an incorrect authorization vulnerability in QNAP operating systems that allows authenticated users to bypass intended access restrictions via network. An attacker with valid credentials could access resources or functionality outside their intended permissions.

MitigationApply the available security updates: QuTScloud c5.1.5.2651 or later, or QTS 4.5.4.2627 build 20231225 or later. QTS 5.x and QuTS hero are unaffected.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
QtsOperating system
Affected:= 4.5.4.1715= 4.5.4.1723= 4.5.4.1741= 4.5.4.1787= 4.5.4.1800= 4.5.4.1892= 4.5.4.1931= 4.5.4.2012= 4.5.4.2117= 4.5.4.2280= 4.5.4.2374= 4.5.4.2627
QutscloudOperating system
Affected:= c5.1.0.2498

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the QNAP OS product in use
    Log into the NAS and check the System Information page, or run 'uname -a' and check for QTS, QuTScloud, or QuTS hero in the output
    Affected if The device runs QTS or QuTScloud (QTS 5.x and QuTS hero are unaffected)
  2. Determine QTS version for QTS systems
    Go to Control Panel > System > System Information > Firmware version, or use the command 'firmware_version' in QTS
    Affected if The installed version matches any of these: 4.5.4.1715, 4.5.4.1723, 4.5.4.1741, 4.5.4.1787, 4.5.4.1800, 4.5.4.1892, 4.5.4.1931, 4.5.4.2012, 4.5.4.2117, 4.5.4.2280, 4.5.4.2374, or 4.5.4.2627
  3. Determine QuTScloud version
    Check the QuTScloud version via the cloud management console or run 'cat /proc/version' on the device
    Affected if The installed version is exactly c5.1.0.2498
  4. Confirm network authentication is accessible
    Verify that the web interface (QTS/QuTScloud admin portal) is accessible over the network and user authentication is enabled
    Affected if Network access to the QNAP admin interface is available and user accounts exist on the system

A system is affected if it runs QTS version 4.5.4.x (specifically any of the listed twelve versions from 1715 to 2627) or QuTScloud version c5.1.0.2498, with network-accessible user authentication enabled.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the available security updates: QuTScloud c5.1.5.2651 or later, or QTS 4.5.4.2627 build 20231225 or later. QTS 5.x and QuTS hero are unaffected.

Recommended fix High confidence

QTS 4.5.4.2627 build 20231225 or later for QTS; QuTScloud c5.1.5.2651 or later for QuTScloud

  1. 1. Identify the current QNAP product (QTS or QuTScloud) and exact version running on the system
  2. 2. For QTS systems: Plan upgrade to QTS 4.5.4.2627 build 20231225 or later
  3. 3. For QuTScloud systems: Plan upgrade to QuTScloud c5.1.5.2651 or later
  4. 4. Schedule a maintenance window for the upgrade
  5. 5. Perform a full backup of critical data before proceeding
  6. 6. Apply the upgrade via QNAP's control panel or command-line interface
  7. 7. After upgrade, verify the system is running the fixed version (QTS 4.5.4.2627+ or QuTScloud c5.1.5.2651+)
  8. 8. Confirm the vulnerability is resolved by verifying access restrictions function correctly

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Qts Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-32967 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data