Vulnerability in Westerndigital My Cloud
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 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.
EPSS: 0.023 (81.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Westerndigital My_cloud
- Westerndigital My_cloud_dl2100
- Westerndigital My_cloud_dl2100_firmware
- Westerndigital My_cloud_dl4100
- Westerndigital My_cloud_dl4100_firmware
- Westerndigital My_cloud_ex2100
- Westerndigital My_cloud_ex2100_firmware
- Westerndigital My_cloud_ex2_ultra
- Westerndigital My_cloud_ex2_ultra_firmware
- Westerndigital My_cloud_ex4100
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-9950?
- CVE-2019-9950 is a critical-severity vulnerability in Westerndigital My Cloud, classified under Weak Password Requirements. CVSS score: 9.8/10. Published 2019-04-24.
- How severe is CVE-2019-9950?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-9950 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.