Shared secret or Point multiplication of NIST P-256 points with X coordinate of zero

When computing a shared secret or point multiplication on the NIST P-256 curve that results in an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output may cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario or incorrect choice of session key in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.

Point Compression/Decompression of NIST P-256 points with X coordinate of zero

When compressing or decompressing a point on the NIST P-256 elliptic curve with an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output will cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.

Sweet-B Library: Point compress/decompress using the wrong bit for sign

When compressing or decompressing elliptic curve points using the Sweet B library, an incorrect choice of sign bit is used. An attacker with user level privileges and no other user's assistance can exploit this vulnerability with only knowledge of the public key and the library. The resulting output may cause an error when used in other operations; for instance, verification of a valid signature under a decompressed public key may fail. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.

Weak Default SSL use in Port Forwarding Service

The Western Digital My Cloud Web App [https://os5.mycloud.com/] uses a weak SSLContext when attempting to configure port forwarding rules. This was enabled to maintain compatibility with old or outdated home routers. By using an "SSL" context instead of "TLS" or specifying stronger validation, deprecated or insecure protocols are permitted. As a result, a local user with no privileges can exploit this vulnerability and jeopardize the integrity, confidentiality and authenticity of information transmitted. The scope of impact cannot extend to other components and no user input is required to exploit this vulnerability.

Cross-site Scripting Vulnerability in USB Backups App

Western Digital My Cloud devices are vulnerable to a cross side scripting vulnerability that can allow a malicious user with elevated privileges access to drives being backed up to construct and inject JavaScript payloads into an authenticated user's browser. As a result, it may be possible to gain control over the authenticated session, steal data, modify settings, or redirect the user to malicious websites. The scope of impact can extend to other components.

Protecting AWS credentials stored in plaintext on My Cloud Home

Implemented protections on AWS credentials that were not properly protected.

Command Injection Vulnerability on My Cloud Home

Addressed a remote code execution vulnerability by resolving a command injection vulnerability and closing an AWS S3 bucket that potentially allowed an attacker to execute unsigned code on My Cloud Home devices.

SanDisk Professional G-RAID 4/8 Software Utility, Privilege Escalation

The G-RAID 4/8 Software Utility setups for Windows were affected by a DLL hijacking vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the system user.

Insufficient Verification of Data Authenticity Remote Code Execution Vulnerability on Western Digital My Cloud devices.

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 vulnerability was addressed by disabling checks for internet connectivity using HTTP.

Limited Server-Side Request Forgery vulnerability on Western Digital My Cloud devices.

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 valid parameters.

Command Injection Remote Code Execution vulnerability on Western Digital My Cloud devices.

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 shell functions coming from user input.

Command injection through unsecured HTTP calls on Western Digital My Cloud devices

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.

Limited authentication bypass vulnerability on Western Digital My Cloud devices

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 rule logic on PHP scripts.

Western Digital My Cloud OS 5 devices before 5.10.122 mishandle Symbolic Link Following on SMB and AFP shares. This can lead to code execution and information disclosure (by reading local files).

Western Digital My Cloud devices before OS5 have a nobody account with a blank password.

Western Digital WD My Book Live (2.x and later) and WD My Book Live Duo (all versions) have an administrator API that can perform a system factory restore without authentication, as exploited in the wild in June 2021, a different vulnerability than CVE-2018-18472.

Western Digital EdgeRover before 0.25 has an escalation of privileges vulnerability where a low privileged user could load malicious content into directories with higher privileges, because of how Node.js is used. An attacker can gain admin privileges and carry out malicious activities such as creating a fake library and stealing user credentials.

The iOS and macOS apps before 1.4.1 for the Western Digital G-Technology ArmorLock NVMe SSD store keys insecurely. They choose a non-preferred storage mechanism if the device has Secure Enclave support but lacks biometric authentication hardware.

Western Digital mycloud.com before Web Version 2.2.0-134 allows XSS.

Western Digital WesternDigitalSSDDashboardSetup.exe before 3.0.2.0 allows DLL Hijacking.