CVE-2020-36197: QNAP NAS MusicStation Directory Traversal Arbitrary File Creation Vulnerability
An improper access control vulnerability has been reported to affect earlier versions of Music Station. If exploited, this vulnerability allows attackers to compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc. This issue affects: QNAP Systems Inc. Music Station versions prior to 5.3.16 on QTS 4.5.2; versions prior to 5.2.10 on QTS 4.3.6; versions prior to 5.1.14 on QTS 4.3.3; versions prior to 5.3.16 on QuTS hero h4.5.2; versions prior to 5.3.16 on QuTScloud c4.5.4.
Other sources
This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of QNAP NAS. Authentication is not required to exploit this vulnerability. The specific flaw exists within the MusicStation application. When parsing the arttype request parameter, the process does not properly validate a user-supplied path prior to using it in file operations.An attacker can leverage this vulnerability to create files in the context of the admin user.
— ZDI
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is CVE-2020-36197?
CVE-2020-36197 is an improper access control vulnerability in earlier versions of Music Station.
What is the severity of CVE-2020-36197?
CVE-2020-36197 has a severity rating of 8.8 (high).
How does CVE-2020-36197 affect Qnap Music Station?
CVE-2020-36197 affects Qnap Music Station versions up to 5.3.16, allowing attackers to compromise its security.
How can CVE-2020-36197 be exploited?
CVE-2020-36197 can be exploited to gain privileges, read sensitive information, execute commands, and evade detection.
Where can I find more information about CVE-2020-36197?
You can find more information about CVE-2020-36197 at the following references: [Reference 1](http://packetstormsecurity.com/files/162849/QNAP-MusicStation-MalwareRemover-File-Upload-Command-Injection.html), [Reference 2](https://www.qnap.com/zh-tw/security-advisory/qsa-21-08), [Reference 3](https://www.zerodayinitiative.com/advisories/ZDI-21-591/).