CVE-2022-36327: Path traversal vulnerability leading to an arbitrary file write in Western Digital devices
First published: Thu May 18 2023(Updated: )
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.
Credit: psirt@wdc.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Westerndigital My Cloud Os 5 | <5.26.202 | |
| Westerndigital My Cloud | ||
| Westerndigital My Cloud Dl2100 | ||
| Westerndigital My Cloud Dl4100 | ||
| Westerndigital My Cloud Ex2 Ultra | ||
| Westerndigital My Cloud Ex2100 | ||
| Westerndigital My Cloud Ex4100 | ||
| Westerndigital My Cloud Mirror G2 | ||
| Westerndigital My Cloud Pr2100 | ||
| Westerndigital My Cloud Pr4100 | ||
| Westerndigital Wd Cloud | ||
| Westerndigital My Cloud Home Firmware | <9.4.0-191 | |
| Westerndigital My Cloud Home | ||
| Westerndigital Sandisk Ibi Firmware | <9.4.0-191 | |
| Westerndigital Sandisk Ibi | ||
| Westerndigital My Cloud Home Duo Firmware | <9.4.0-191 | |
| Westerndigital My Cloud Home Duo |
Remedy
For My Cloud Home, My Cloud Home Duo and SanDisk ibi devices will be automatically updated to reflect the latest firmware version. For My Cloud OS 5 devices, Western Digital recommends that users promptly update their devices to the latest firmware by clicking on the firmware update notification.
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID of this vulnerability is CVE-2022-36327.
What software is affected by CVE-2022-36327?
Western Digital My Cloud Home, My Cloud Home Duo, and SanDisk ibi firmware versions 9.4.0-191 are affected by CVE-2022-36327.
What is the severity of CVE-2022-36327?
The severity of CVE-2022-36327 is critical with a CVSS score of 9.8.
What is the CWE ID of CVE-2022-36327?
The CWE ID of CVE-2022-36327 is 22.
Where can I find more information about CVE-2022-36327?
More information about CVE-2022-36327 can be found at the following links: - [Western Digital Security Advisory](https://www.westerndigital.com/support/product-security/wdc-23003-western-digital-my-cloud-home-my-cloud-home-duo-and-sandisk-ibi-firmware-version-9-4-0-191) - [My Cloud Firmware Version 5.26.202](https://www.westerndigital.com/support/product-security/wdc-23006-my-cloud-firmware-version-5-26-202)
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- vendor/westerndigital
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- canonical/westerndigital my cloud home duo