CVE-2021-3310: Western Digital MyCloud PR4100 Link Resolution Information Disclosure Vulnerability
First published: Wed Mar 10 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Westerndigital My Cloud Os | <5.10.122 | |
| Westerndigital My Cloud Dl2100 | ||
| Westerndigital My Cloud Dl4100 | ||
| Westerndigital My Cloud Ex2 Ultra | ||
| Westerndigital My Cloud Ex2100 | ||
| Westerndigital My Cloud Ex4100 | ||
| Westerndigital My Cloud Mirror Gen 2 | ||
| Westerndigital My Cloud Pr2100 | ||
| Westerndigital My Cloud Pr4100 | ||
| Western Digital MyCloud PR4100 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for the Western Digital MyCloud PR4100 Link Resolution Information Disclosure vulnerability?
The vulnerability ID for the Western Digital MyCloud PR4100 Link Resolution Information Disclosure vulnerability is CVE-2021-3310.
What is the severity rating of CVE-2021-3310?
The severity rating of CVE-2021-3310 is 7.8 (High).
Which software is affected by CVE-2021-3310?
The Western Digital My Cloud OS version up to and exclusive of 5.10.122 is affected by CVE-2021-3310.
How can an attacker exploit CVE-2021-3310?
An attacker can exploit CVE-2021-3310 by creating a symbolic link within the SMB and AFP services.
Is authentication required to exploit CVE-2021-3310?
No, authentication is not required to exploit CVE-2021-3310.
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