Paper/Archive/CVE-2022-36327

CVE-2022-36327

Western Digital My Cloud Home and My Cloud Home Duo — Path traversal vulnerability leading to an arbitrary file write in Western Digital devices

EPSS 1%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (NVD)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 73.7.737 × 2014.7 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

My Cloud Home and My Cloud Home Duo< 9.4.0-191 9.4.0-191CNA

ibi< 9.4.0-191 9.4.0-191CNA

My Cloud OS 5< 5.26.2025.26.202CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

WDC PSIRT (CNA)5.8CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refwesterndigital.com/support/product-security/wdc-23003-western-digital-my-cloud-home-my-cloud-home-duo-and-sandisk-ibi-firmware-version-9-4-0-191 refwesterndigital.com/support/product-security/wdc-23006-my-cloud-firmware-version-5-26-202