CVE-2022-29836: Post-Auth Path Traversal Vulnerability Allows to Custom Package Installation via HTTP API

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-11-09 · updated 2026-06-17
Weakness: CWE-22

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability was discovered via an HTTP API on Western Digital My Cloud Home; My Cloud Home Duo; and SanDisk ibi devices that could allow an attacker to abuse certain parameters to point to random locations on the file system. This could also allow the attacker to initiate the installation of custom packages at these locations. This can only be exploited once the attacker has been authenticated to the device. This issue affects: Western Digital My Cloud Home and My Cloud Home Duo versions prior to 8.11.0-113 on Linux; SanDisk ibi versions prior to 8.11.0-113 on Linux.

Affected products

Westerndigital My Cloud Home Duo Firmware: before 8.11.0-113 — fixed in 8.11.0-113
Westerndigital My Cloud Home Firmware: before 8.11.0-113 — fixed in 8.11.0-113
Westerndigital Sandisk Ibi Firmware: before 8.11.0-113 — fixed in 8.11.0-113

How to fix

Upgrade to a fixed version: Westerndigital My Cloud Home Duo Firmware 8.11.0-113; Westerndigital My Cloud Home Firmware 8.11.0-113; Westerndigital Sandisk Ibi Firmware 8.11.0-113. Check the vendor advisory for mitigations.

References

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