Pull your Western Digital My Book Live NAS off the internet now if you value your files • The Register

Western Digital has alerted customers to a critical bug on its My Book Live storage drives, warning them to disconnect the devices from the internet to protect the units from being remotely wiped.

In an advisory, the storage firm said My Book Live and My Book Live Duo devices were being “compromised through exploitation of a remote command execution vulnerability” CVE-2018-18472. The exploit is described as a root remote command execution bug which can be triggered by anyone who knows the IP address of the affected device – and is currently being “exploited in the wild in June 2021 for factory reset commands.”

Reports of the issue emerged on Thursday after owners of the NAS devices took to Western Digital’s support forums to complain.

“All my data is gone too. Message in GUI says it was ‘factory reset’ today! I am totally screwed without that data… years of it,” wrote one user.

“I kept all my documents on this drive. All files gone,” said another.

Device logs published on the Western Digital forums show the devices were remotely factory reset, although the culprits have not been found. In a statement earlier today, the company said it didn’t believe its own servers were compromised.

The Western Digital My Book Live connects to a host computer via USB, with internet access coming via an Ethernet port on the back. Remote access is obtained via Western Digital’s own cloud servers.

NAS drives have a storied history of falling victim to malicious actors. In April, Taiwanese storage giant QNAP urged customers to update their drives in the face of two specifically targeted ransomware strains, Qlocker and eCh0raix.

The previous year, authorities in the US and UK warned of a mass infection of data-stealing malware targeting QNAP drives. Dubbed Qsnatch, the attack compromised an estimated 62,000 devices. Once inside, the malware opened several backdoors – including SSH and a webshell – and resisted attempts by the…