CVE-2020-29563: (Pwn2Own) Western Digital MyCloud PR4100 nasAdmin Incorrect Authorization Authentication Bypass Vulnerability
An issue was discovered on Western Digital My Cloud OS 5 devices before 5.07.118. A NAS Admin authentication bypass vulnerability could allow an unauthenticated user to gain access to the device.
Other sources
This vulnerability allows remote attackers to bypass authentication on affected installations of Western Digital MyCloud PR4100. Authentication is not required to exploit this vulnerability. The specific flaw exists within the modrewrite module. The issue results from the way the software parses URLs to make authorization decisions. An attacker can leverage this vulnerability to bypass authentication on the system.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2020-29563.
What is the severity of CVE-2020-29563?
The severity of CVE-2020-29563 is critical, with a severity score of 9.8.
Which software is affected by CVE-2020-29563?
CVE-2020-29563 affects Western Digital MyCloud PR4100 with My Cloud OS 5 up to version 5.07.118.
How does the vulnerability in CVE-2020-29563 allow attackers to bypass authentication?
The vulnerability allows remote attackers to bypass authentication on affected installations of Western Digital MyCloud PR4100.
Is authentication required to exploit CVE-2020-29563?
No, authentication is not required to exploit CVE-2020-29563.