CVE-2019-9950: westerndigital my_cloud_firmware Weak Password Requirements
Vulnerability summary
CVE-2019-9950 is a critical (CVSS 9.8) Weak Password Requirements vulnerability in westerndigital my_cloud_firmware. EPSS estimates a 2.30% chance of exploitation in the next 30 days, higher than 83% of scored vulnerabilities.
Timeline
- 24-04-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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 metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
2.30%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.30% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Westerndigital9 products
- my_cloud_firmware< 2.31.174
- my_cloud_dl2100_firmware< 2.31.174
- my_cloud_dl4100_firmware< 2.31.174
- my_cloud_ex2_ultra_firmware< 2.31.174
- my_cloud_ex2100_firmware< 2.31.174
1 vendor · 9 products
References
4 links- community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-174-3-26-19/235932X Refsource CONFIRMVendor Advisory
- bnbdr.github.io/posts/wd/X Refsource MISC
- github.com/bnbdr/wd-rce/X Refsource MISC