Improper Authentication in QNAP Systems, Inc. products - CVE-2024-21899

Vulnerability identifier: #VU87318

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-21899

CWE-ID: CWE-287

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote user can bypass authentication process and gain unauthorized access to the application.

QuTScloud
QuTS hero
myQNAPcloud
QNAP QTS

Install updates from vendor's website.

QuTScloud - update to c5.1.5.2651
QuTS hero - addressed in versions h4.5.4.2626 build 20231225, h5.1.3.2578 build 20231110
myQNAPcloud - update to 1.0.52
QNAP QTS - addressed in versions 4.5.4.2627 20231225, 5.1.3.2578 20231110

• https://www.qnap.com/en/security-advisory/qsa-24-09
• https://www.zerodayinitiative.com/advisories/ZDI-24-470/

• Multiple vulnerabilities in QNAP QTS, QuTS hero, QuTScloud, myQNAPcloud and myQNAPcloud Link