#VU77723 Arbitrary file upload in WL-WN531AX2 - CVE-2023-32621

Vulnerability identifier: #VU77723

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-32621

CWE-ID: CWE-434

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
WL-WN531AX2
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Wavlink

Description

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote administrator on the local network can upload a malicious file and execute it on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WL-WN531AX2: before 2023526

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External links
https://jvn.jp/en/jp/JVN78634340/index.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.