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CRITICAL · 9.8

CVE-2019-9950

Western Digital My Cloud, My Cloud Mirror Gen2, My Cloud EX2 Ultra, My Cloud EX2100, My Cloud EX4100, My Cloud DL2100, My Cloud DL4100, My Cloud PR2100 and My Cloud PR4100 firmware before 2.31.174 is ...

Vulnerability Description

Western Digital My Cloud, My Cloud Mirror Gen2, My Cloud EX2 Ultra, My Cloud EX2100, My Cloud EX4100, My Cloud DL2100, My Cloud DL4100, My Cloud PR2100 and My Cloud PR4100 firmware before 2.31.174 is affected by an authentication bypass vulnerability. The login_mgr.cgi file checks credentials against /etc/shadow. However, the "nobody" account (which can be used to access the control panel API as a low-privilege logged-in user) has a default empty password, allowing an attacker to modify the My Cloud EX2 Ultra web page source code and obtain access to the My Cloud as a non-Admin My Cloud device user.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
WesterndigitalMy Cloud Firmware< 2.31.174
WesterndigitalMy Cloud-
WesterndigitalMy Cloud Mirror Gen2 Firmware< 2.31.174
WesterndigitalMy Cloud Mirror Gen2-
WesterndigitalMy Cloud Ex2 Ultra Firmware< 2.31.174
WesterndigitalMy Cloud Ex2 Ultra-
WesterndigitalMy Cloud Ex2100 Firmware< 2.31.174
WesterndigitalMy Cloud Ex2100-
WesterndigitalMy Cloud Ex4100 Firmware< 2.31.174
WesterndigitalMy Cloud Ex4100-
WesterndigitalMy Cloud Dl2100 Firmware< 2.31.174
WesterndigitalMy Cloud Dl2100-
WesterndigitalMy Cloud Dl4100 Firmware< 2.31.174
WesterndigitalMy Cloud Dl4100-
WesterndigitalMy Cloud Pr2100 Firmware< 2.31.174
WesterndigitalMy Cloud Pr2100-
WesterndigitalMy Cloud Pr4100 Firmware< 2.31.174
WesterndigitalMy Cloud Pr4100-

Related Weaknesses (CWE)

CWE-521

References

FAQ

What is CVE-2019-9950?

CVE-2019-9950 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Western Digital My Cloud, My Cloud Mirror Gen2, My Cloud EX2 Ultra, My Cloud EX2100, My Cloud EX4100, My Cloud DL2100, My Cloud DL4100, My Cloud PR2100 and My Cloud PR4100 firmware before 2.31.174 is ...

How severe is CVE-2019-9950?

CVE-2019-9950 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2019-9950?

Check the references section above for vendor advisories and patch information. Affected products include: Westerndigital My Cloud Firmware, Westerndigital My Cloud, Westerndigital My Cloud Mirror Gen2 Firmware, Westerndigital My Cloud Mirror Gen2, Westerndigital My Cloud Ex2 Ultra Firmware.