Advisory Details

May 19th, 2024

(Pwn2Own) QNAP TS-464 QR Code Device CRLF Injection Arbitrary Configuration Change Vulnerability

CVE ID	CVE-2024-21899
CVSS SCORE	9.1, AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
AFFECTED VENDORS	QNAP
AFFECTED PRODUCTS	TS-464
VULNERABILITY DETAILS	This vulnerability allows remote attackers to make arbitrary changes to configuration on affected installations of QNAP TS-464 NAS devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the privWizard API endpoints. The issue results from the lack of proper validation of a user-supplied string before using it to update configuration. An attacker can leverage this vulnerability to change the configuration of the system.
ADDITIONAL DETAILS	QNAP has issued an update to correct this vulnerability. More details can be found at: https://www.qnap.com/en/security-advisory/qsa-24-09
DISCLOSURE TIMELINE	2023-11-09 - Vulnerability reported to vendor 2024-05-19 - Coordinated public release of advisory 2024-07-01 - Advisory Updated
CREDIT	LJP (@ljp_tw) and YingMuo (@YingMuo), working with DEVCORE Internship Program

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