Limited authentication bypass vulnerability on Western Digital My Cloud devices
CVE-2022-22990

7.8HIGH

Key Information:

Vendor

Western Digital

Status
My Cloud
Vendor
CVE Published:
13 January 2022

What is CVE-2022-22990?

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.

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Affected Version(s)

My Cloud My Cloud OS 5 < 5.19.117

References

https://www.westerndigital.com/support/product-security/w...
x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-22-076/
x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-22-347/
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Reported By: Sam Thomas (@_s_n_t) of Pentest Ltd (@pentestltd) working with Trend Micro’s Zero Day Initiative
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