An improper protection of authentication tokens vulnerability exists in
certain Ebyte gateway products. Authentication tokens used by the web
management interface are insufficiently protected during client-side
session handling, which may allow an attacker with access to exposed
session information to obtain and reuse a valid token. Successful
exploitation could allow an attacker to impersonate an authenticated
user and gain unauthorized access to device management functionality.
Ebyte acknowledged receipt of the reported vulnerabilities and indicated
that a patch was under development. However, the vendor has not
responded to subsequent requests for coordination, and CISA has not been
informed of the status or availability of the patch. Users are
encouraged to reach out to Ebyte for more information.