Cyber Resilience

CVE-2023-50363

High

Published: 26 April 2024

Published
26 April 2024
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
EPSS Score 0.0003 7.6th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-50363 is a high-severity Improper Authorization (CWE-285) vulnerability in Qnap Qts. Its CVSS base score is 7.4 (High).

Operationally, ranked at the 7.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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. We have already fixed the vulnerability in the following versions:…

more

QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

qnap
qts
5.1.0.2348, 5.1.0.2399, 5.1.0.2418, 5.1.0.2444, 5.1.0.2466
qnap
quts hero
h5.1.0.2409, h5.1.0.2424, h5.1.0.2453, h5.1.0.2466, h5.1.1.2488

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-285 CWE-863

Documented procedures facilitate correct implementation and ongoing management of authorization decisions.

addresses: CWE-285 CWE-863

Periodic reviews identify and correct flaws in authorization decisions or enforcement.

addresses: CWE-285 CWE-863

Establishing permitted attributes and values, plus auditing changes, ensures authorization decisions are based on correctly managed policy data.

addresses: CWE-285 CWE-863

Explicitly mandates authorizing remote access types before permitting connections, directly mitigating improper authorization.

addresses: CWE-285 CWE-863

The control explicitly requires authorization of each wireless access type prior to permitting connections.

addresses: CWE-285 CWE-863

Mandating explicit authorization of mobile device connections reduces the risk of improper authorization decisions for system access.

addresses: CWE-285 CWE-863

Specifying access authorizations for each account and requiring approvals for account requests enforces proper authorization decisions.

addresses: CWE-285 CWE-863

Requires explicit authorization for individuals to use external systems to access or handle organization-controlled information.

References