CVE-2019-9950 Auth bypass in n/a
Attackers can bypass authentication using the default empty password for the 'nobody' account to gain low-privilege access and modify web content on Western Digital My Cloud devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-9950?
CVE-2019-9950 is a critical authentication bypass vulnerability in n/a, published on 24 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-521
Which versions are affected by CVE-2019-9950?
It affects 9 products.
Products include Westerndigital My Cloud Dl2100 Firmware, Westerndigital My Cloud Dl4100 Firmware, Westerndigital My Cloud Ex2100 Firmware, Westerndigital My Cloud Ex2 Ultra Firmware, Westerndigital My Cloud Ex4100 Firmware, Westerndigital My Cloud Firmware and 3 more.
How do I fix CVE-2019-9950?
No fix has been published for CVE-2019-9950 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-9950 being exploited?
There is no known exploitation of CVE-2019-9950 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2022-36331 Impersonation attack causing an Authentication Bypass on Western Digital devices
- CVE-2019-9949 Path traversal in n/a
- CVE-2022-22999 Cross-site Scripting Vulnerability in USB Backups App
- CVE-2022-23000 Weak Default SSL use in Port Forwarding Service
- CVE-2022-29844 Western Digital My Cloud OS 5 arbitrary file read and write vulnerability via ftp
Sources
Also known as GHSA-rv3g-3684-4ppw.