CVE-2022-29844 Western Digital My Cloud OS 5 arbitrary file read and write vulnerability via ftp

What is CVE-2022-29844?

CVE-2022-29844 is a medium-severity path traversal vulnerability in Western Digital My Cloud, published on 25 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the FTP service of Western Digital My Cloud OS 5 devices running firmware versions prior to 5.26.119 allows an attacker to read and write arbitrary files. This could lead to a full NAS compromise and would give remote execution capabilities to the attacker.

Weakness: CWE-22, CWE-23

Which versions are affected by CVE-2022-29844?

It affects 8 products.

Products include Westerndigital My Cloud Dl2100 Firmware, Westerndigital My Cloud Dl4100 Firmware, Westerndigital My Cloud Ex2100 Firmware, Westerndigital My Cloud Ex2 Ultra Firmware, Westerndigital My Cloud Ex4100 Firmware, Westerndigital My Cloud Mirror G2 Firmware and 2 more.

How do I fix CVE-2022-29844?

No fix has been published for CVE-2022-29844 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2022-29844 being exploited?

There is no known exploitation of CVE-2022-29844 in the wild and no public exploit code.

Other vulnerabilities in Western Digital My Cloud

• CVE-2022-36331 Impersonation attack causing an Authentication Bypass on Western Digital devices Critical 10.0
• CVE-2019-9950 Auth bypass in n/a Critical 9.8
• CVE-2019-9949 Path traversal in n/a High 8.8
• CVE-2022-22999 Cross-site Scripting Vulnerability in USB Backups App High 8.2
• CVE-2022-23000 Weak Default SSL use in Port Forwarding Service High 7.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6r45-66xq-p89w.