This vulnerability allows remote attackers to create and read arbitrary files on affected installations of Western Digital MyCloud PR4100 NAS devices. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.
The specific flaw exists within the restsdk binary. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.
CVE-2022-36328
Western Digital
MyCloud PR4100
8.8
Team82 is committed to privately reporting vulnerabilities to affected vendors in a coordinated, timely manner in order to ensure the safety of the cybersecurity ecosystem worldwide. To engage with the vendor and research community, Team82 invites you to download and share our Coordinated Disclosure Policy. Team82 will adhere to this reporting and disclosure process when we discover vulnerabilities in products and services.
Team82 has also made its public PGP Key available for the vendor and research community to securely and safely exchange vulnerability and research information with us.
