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CVE-2019-9950

N/A
Published: April 24, 2019 at 05:17 PM UTC
Updated: June 17, 2026 at 02:44 AM UTC
18 products affected across 1 vendorMy Cloud EX2 Ultra FirmwareMy Cloud FirmwareMy Cloud EX2100 Firmware

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Severity
N/A
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

My Cloud DL2100 Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
My Cloud DL4100 Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
My Cloud EX2 Ultra Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
My Cloud EX2100 Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
My Cloud EX4100 Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
My Cloud Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
My Cloud Mirror Gen 2 Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
westerndigital-my-cloud-mirror-gen2 (same device)
My Cloud PR2100 Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
My Cloud PR4100 Firmware· Westerndigital
95%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement
My Cloud· Westerndigital
90%
v < 2.31.174
Affected range stops below 2.31.174, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_MISC
Source: [email protected]
https://bnbdr.github.io/posts/wd/
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-174-3-26-19/235932
x_refsource_MISC
Source: [email protected]
https://github.com/bnbdr/wd-rce/
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://support.wdc.com/downloads.aspx?g=2702&lang=en

CVSS

7.5HIGH[email protected]
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-521

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