Arbitrary Code Execution Vulnerability in NETGEAR Nighthawk Router

CVE-2021-27253

Summary

A vulnerability exists in the NETGEAR Nighthawk R7800 that enables network-adjacent attackers to execute arbitrary code on affected devices. Although authentication is needed to exploit this vulnerability, the current authentication mechanism can be bypassed. The flaw is due to the improper validation of a user-supplied string within the rc_service parameter in apply_bind.cgi, allowing attackers to execute commands in the context of root. This issue poses a significant risk to the security of network environments where the router is deployed.

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