#VU54465 Improper access control in WD My Book Live and WD My Book Live Duo - CVE-2021-35941

Vulnerability identifier: #VU54465

Vulnerability risk: High

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2021-35941

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WD My Book Live
Hardware solutions / Office equipment, IP-phones, print servers
WD My Book Live Duo
Hardware solutions / Office equipment, IP-phones, print servers

Vendor: Western Digital

Description

The vulnerability allows a remote attacker to delete all data on the system.

The vulnerability exists due to improper access restrictions to the administrator API. A remote non-authenticated attacker can send a specially crafted HTTP request to the exposed API and perform a system factory restore, deleting all data on the NAS device.

Note, the vulnerability is being actively exploited in the wild along with vulnerability #VU15460.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

WD My Book Live: All versions

WD My Book Live Duo: All versions

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External links
https://www.westerndigital.com/support/productsecurity/wdc-21008-recommended-security-measures-wd-mybooklive-wd-mybookliveduo

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.