CVE-2022-36327 Path traversal vulnerability leading to an arbitrary file write in Western Digital devices

Medium 5.8 Published 18 May 2023 Updated 22 Jan 2025

Path traversal allows arbitrary file writes leading to remote code execution on Western Digital NAS devices, requiring prior authentication bypass.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-36327?

CVE-2022-36327 is a medium-severity path traversal vulnerability in SanDisk My Cloud Home and My Cloud Home Duo, published on 18 May 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability that could allow an attacker to write files to locations with certain critical filesystem types leading to remote code execution was discovered in Western Digital My Cloud Home, My Cloud Home Duo, SanDisk ibi and Western Digital My Cloud OS 5 devices. This issue requires an authentication bypass issue to be triggered before this can be exploited. This issue affects My Cloud Home and My Cloud Home Duo: before 9.4.0-191; ibi: before 9.4.0-191; My Cloud OS 5: before 5.26.202.

Weakness: CWE-22

Which versions are affected by CVE-2022-36327?

It affects 4 products.

Products include Westerndigital My Cloud Home Duo Firmware, Westerndigital My Cloud Home Firmware, Westerndigital My Cloud Os 5, Westerndigital Sandisk Ibi Firmware.

How do I fix CVE-2022-36327?

No fix has been published for CVE-2022-36327 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2022-36327 being exploited?

There is no known exploitation of CVE-2022-36327 in the wild and no public exploit code.

Sources

Also known as GHSA-w8xh-67qr-h5gr.