CVE-2022-36327

Path traversal vulnerability leading to an arbitrary file write in Western Digital devices

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.

Remediation

Solution:

  • 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.

Category

5.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.27%
Vendor Advisory westerndigital.com Vendor Advisory westerndigital.com
Affected: Western Digital My Cloud Home and My Cloud Home Duo
Affected: SanDisk ibi
Affected: Western Digital My Cloud OS 5
Published at:
Updated at:

References

Link Tags
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 release notes vendor advisory
https://www.westerndigital.com/support/product-security/wdc-23006-my-cloud-firmware-version-5-26-202 release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-36327?
CVE-2022-36327 has been scored as a medium severity vulnerability.
How to fix CVE-2022-36327?
To fix CVE-2022-36327: 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.
Is CVE-2022-36327 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-36327 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-36327?
CVE-2022-36327 affects Western Digital My Cloud Home and My Cloud Home Duo, SanDisk ibi, Western Digital My Cloud OS 5.
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