My Cloud OS vulnerabilities
10 known vulnerabilities in My Cloud OS from Westerndigital. 10 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.
Latest first
- 9.8 Critical severity
My Cloud OS 5: Authentication Bypass by Spoofing
An authentication bypass issue via spoofing was discovered in the token-based authentication mechanism that could allow an attacker to carry out an impersonation attack. This issue affects My Cloud OS 5 devices: before 5.26.202.
- 8.8 High severity
My Cloud OS 5: Improper Neutralization of Special Elements used in a Command
A post-authentication remote command injection vulnerability in a CGI file in Western Digital My Cloud OS 5 devices that could allow an attacker to build files with redirects and execute larger payloads. This issue affects My Cloud OS 5 devices: before 5.26.30
- 9.8 Critical severity
My Cloud OS 5: Improper Neutralization of Special Elements used in an OS Command
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability that was caused by a command that read files from a privileged location and created a system command without sanitizing the read data. This command could b
- 9.8 Critical severity
My Cloud OS 5: Improper Neutralization of Special Elements used in a Command
Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability that could allow an attacker to execute code in the context of the root user on a vulnerable CGI file was discovered in Western Digital My Cloud OS 5 devicesThis
- 9.8 Critical severity
My Cloud: Insufficient Verification of Data Authenticity
A remote code execution vulnerability was discovered on Western Digital My Cloud devices where an attacker could trick a NAS device into loading through an unsecured HTTP call. This was a result insufficient verification of calls to the device. The vulnerabili
- 8.8 High severity
My Cloud: Server-Side Request Forgery
A limited SSRF vulnerability was discovered on Western Digital My Cloud devices that could allow an attacker to impersonate a server and reach any page on the server by bypassing access controls. The vulnerability was addressed by creating a whitelist for vali
- 9.8 Critical severity
My Cloud OS: Improper Encoding or Escaping of Output
A command injection remote code execution vulnerability was discovered on Western Digital My Cloud Devices that could allow an attacker to execute arbitrary system commands on the device. The vulnerability was addressed by escaping individual arguments to shel
- 8.8 High severity
My Cloud: Improper Neutralization of Special Elements used in a Command
A malicious user on the same LAN could use DNS spoofing followed by a command injection attack to trick a NAS device into loading through an unsecured HTTP call. Addressed this vulnerability by disabling checks for internet connectivity using HTTP.
- 8.8 High severity
My Cloud: Incorrect Comparison
A limited authentication bypass vulnerability was discovered that could allow an attacker to achieve remote code execution and escalate privileges on the My Cloud devices. Addressed this vulnerability by changing access token validation logic and rewriting rul
- 9.8 Critical severity
My Cloud: Out-of-bounds Write
My Cloud OS 5 was vulnerable to a pre-authenticated stack overflow vulnerability on the FTP service that could be exploited by unauthenticated attackers on the network. Addressed the vulnerability by adding defenses against stack overflow issues.