What is the severity of ZDI-CAN-12455?

The severity of ZDI-CAN-12455 is considered high due to the potential for remote attackers to disclose sensitive information without authentication.

How do I fix ZDI-CAN-12455?

To remediate ZDI-CAN-12455, update the firmware of your Western Digital MyCloud PR4100 to the latest version provided by Western Digital.

What are the potential impacts of ZDI-CAN-12455?

The potential impacts of ZDI-CAN-12455 include unauthorized access to sensitive data stored on affected installations.

Which products are affected by ZDI-CAN-12455?

ZDI-CAN-12455 specifically affects the Western Digital MyCloud PR4100.

Is authentication required to exploit ZDI-CAN-12455?

No, authentication is not required to exploit ZDI-CAN-12455, making it particularly dangerous.

Vulnerability/
ZDI-CAN-12455

high

7.5

30/1/2025

ZDI-CAN-12455: Western Digital MyCloud PR4100 Link Resolution Information Disclosure Vulnerability

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Western Digital MyCloud PR4100. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SMB and AFP services. By creating a symbolic link, an attacker can abuse the service to read arbitrary files. An attacker can leverage this vulnerability to disclose information in the context of the service account.

Affected Software	Affected Version	How to fix
Western Digital My Cloud PR4100

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Reference Links

Frequently Asked Questions

What is the severity of ZDI-CAN-12455?
The severity of ZDI-CAN-12455 is considered high due to the potential for remote attackers to disclose sensitive information without authentication.
How do I fix ZDI-CAN-12455?
To remediate ZDI-CAN-12455, update the firmware of your Western Digital MyCloud PR4100 to the latest version provided by Western Digital.
What are the potential impacts of ZDI-CAN-12455?
The potential impacts of ZDI-CAN-12455 include unauthorized access to sensitive data stored on affected installations.
Which products are affected by ZDI-CAN-12455?
ZDI-CAN-12455 specifically affects the Western Digital MyCloud PR4100.
Is authentication required to exploit ZDI-CAN-12455?
No, authentication is not required to exploit ZDI-CAN-12455, making it particularly dangerous.

agent/references
agent/softwarecombine
agent/severity
agent/title
agent/type
agent/description
agent/event
agent/source
agent/tags
collector/zdi-advisory
source/ZDI
alias/ZDI-21-277
alias/ZDI-CAN-12455
alias/CVE-2021-3310
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/western digital
canonical/western digital my cloud pr4100

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Frequently Asked Questions

What is the severity of ZDI-CAN-12455?
The severity of ZDI-CAN-12455 is considered high due to the potential for remote attackers to disclose sensitive information without authentication.
How do I fix ZDI-CAN-12455?
To remediate ZDI-CAN-12455, update the firmware of your Western Digital MyCloud PR4100 to the latest version provided by Western Digital.
What are the potential impacts of ZDI-CAN-12455?
The potential impacts of ZDI-CAN-12455 include unauthorized access to sensitive data stored on affected installations.
Which products are affected by ZDI-CAN-12455?
ZDI-CAN-12455 specifically affects the Western Digital MyCloud PR4100.
Is authentication required to exploit ZDI-CAN-12455?
No, authentication is not required to exploit ZDI-CAN-12455, making it particularly dangerous.