CVE-2019-9950
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 2.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.3% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.3% · EPSS, next 30 days
- Weakness
- CWE-521
- Record status
- Modified
Affected
- Westerndigital My Cloud Firmware < 2.31.174
- Westerndigital My Cloud Mirror gen2 Firmware < 2.31.174
- Westerndigital My Cloud ex2 Ultra Firmware < 2.31.174
- Westerndigital My Cloud ex2100 Firmware < 2.31.174
- Westerndigital My Cloud ex4100 Firmware < 2.31.174
- Westerndigital My Cloud dl2100 Firmware < 2.31.174
- Westerndigital My Cloud dl4100 Firmware < 2.31.174
- Westerndigital My Cloud pr2100 Firmware < 2.31.174
Attack profile CVSS 3.0 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-9950.md and follow it. Check whether this project is affected by CVE-2019-9950. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-174-3-26-19/235932
- https://support.wdc.com/downloads.aspx?g=2702&lang=en
- https://community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-174-3-26-19/235932
- https://support.wdc.com/downloads.aspx?g=2702&lang=en
References
- https://bnbdr.github.io/posts/wd/
- https://community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-174-3-26-19/235932
- https://github.com/bnbdr/wd-rce/
- https://support.wdc.com/downloads.aspx?g=2702&lang=en
- https://bnbdr.github.io/posts/wd/
- https://community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-174-3-26-19/235932
- https://github.com/bnbdr/wd-rce/
- https://support.wdc.com/downloads.aspx?g=2702&lang=en