Critical severity · published May 18, 2023
CVE-2022-36327
Path traversal vulnerability leading to an arbitrary file write in Western Digital devices
9.8
CVSS
1.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
My Cloud Home and My Cloud Home Duo · Western Digital
before 9.4.0-191 · source: vendor
MC
My Cloud OS 5 · Western Digital
before 5.26.202 · source: vendor, NVD
IB
ibi · SanDisk
before 9.4.0-191 · source: vendor
MC
MY Cloud Home Duo Firmware · Westerndigital
before 9.4.0-191 · source: NVD
MC
MY Cloud Home Firmware · Westerndigital
before 9.4.0-191 · source: NVD
SI
Sandisk Ibi Firmware · Westerndigital
before 9.4.0-191 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-36327
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-36327
Release Notes
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
https://www.westerndigital.com/support/product-security/wdc-23006-my-cloud-firmware-version-5-26-202
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