CVE-2022-22993: (Pwn2Own) Western Digital MyCloud PR4100 cgi_api Server-Side Request Forgery Privilege Escalation Vulnerability
First published: Fri Jan 28 2022(Updated: )
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.
Credit: psirt@wdc.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Western Digital MyCloud PR4100 | ||
| Westerndigital My Cloud Os | <5.19.117 | |
| Westerndigital My Cloud | ||
| 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 | ||
| Westerndigital Wd Cloud |
Remedy
Update your My Cloud device to firmware version 5.19.117.
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Reference Links
Frequently Asked Questions
What is CVE-2022-22993?
CVE-2022-22993 is a vulnerability that allows network-adjacent attackers to escalate privileges on Western Digital MyCloud PR4100 devices.
How severe is CVE-2022-22993?
The severity of CVE-2022-22993 is rated as high, with a CVSS score of 8.8.
What software versions are affected by CVE-2022-22993?
The affected software versions are Western Digital My Cloud OS up to version 5.19.117.
How can CVE-2022-22993 be exploited?
To exploit CVE-2022-22993, network-adjacent attackers need to bypass the existing authentication mechanism on affected Western Digital MyCloud PR4100 devices.
Is there a fix for CVE-2022-22993?
Yes, Western Digital has released firmware version 5.19.117 for My Cloud OS5, which addresses the vulnerability. It is recommended to update to this version to fix CVE-2022-22993.
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