CVE-2024-21899: qts Auth Bypass — Fix

Description

An improper authentication vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to compromise the security of the system via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.3.2578 build 20231110 and later QTS 4.5.4.2627 build 20231225 and later QuTS hero h5.1.3.2578 build 20231110 and later QuTS hero h4.5.4.2626 build 20231225 and later QuTScloud c5.1.5.2651 and later

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-287 Improper Authentication

Affected Products

Vendor	Product	Versions
qnap	qts	< 4.5.4.2627
qnap	qts	5.1.0 — 5.1.3.2578
qnap	qts	All
qnap	qts	All
qnap	quts_hero	< h4.5.4.2626
qnap	quts_hero	h5.1.0 — h5.1.3.2578
qnap	quts_hero	All
qnap	quts_hero	All
qnap	qutscloud	< c5.1.5.2651

References

Advisories & Patches

https://www.qnap.com/en/security-advisory/qsa-24-09 https://www.qnap.com/en/security-advisory/qsa-24-09

Frequently Asked Questions

What is CVE-2024-21899? +

An improper authentication vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to compromise the security of the system via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.3.2578 build 20231110 and later QTS 4.5.4.2627 build 20231225 and later QuTS hero h5.1.3.2578 build 20231110 and later QuTS hero h4.5.4.2626 build 20231225 and later QuTScloud c5.1.5.2651 and later It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-21899? +

CVE-2024-21899 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-21899? +

CVE-2024-21899 affects products from qnap, specifically: qts, quts_hero, qutscloud. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-21899? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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