CVE-2020-27872: NETGEAR R7450 Password Recovery External Control of Critical State Data Authentication Bypass Vulnerability
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7450 1.2.0.621.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the minihttpd service, which listens on TCP port 80 by default. The issue results from improper state tracking in the password recovery process. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11365.
Other sources
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7450 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the minihttpd service, which listens on TCP port 80 by default. The issue results from improper state tracking in the password recovery process. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2020-27872.
What is the severity of CVE-2020-27872?
The severity of CVE-2020-27872 is high with a severity value of 8.8.
Which products are affected by CVE-2020-27872?
NETGEAR R7450 routers running firmware version 1.2.0.62_1.0.1 are affected by CVE-2020-27872.
Is authentication required to exploit CVE-2020-27872?
No, authentication is not required to exploit CVE-2020-27872.
How can I fix CVE-2020-27872?
NETGEAR has released a security advisory with instructions on how to mitigate the password recovery vulnerabilities. Please refer to the official NETGEAR advisory for guidance.