VU#914124: Arcadyan-based routers and modems vulnerable to authentication bypass

Overview A path traversal vulnerability exists in numerous routers manufactured by multiple vendors using Arcadyan based software. This vulnerability allows an unauthenticated user access to sensitive information and allows for the alteration of the router configuration. Description The vulnerability, identified as CVE-2021-20090, is a path traversal vulnerability. An unauthenticated attacker is able to leverage this vulnerability to access resources that would normally be protected. The researcher initially thought it was limited to one router manufacturer and published their findings, but...