Unfiltered Telnet and FTP Ports on ZyXEL Prestige 642R and 642R-I Routers Allow Unauthorized Internal Access

CVE-2001-1135 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

ZyXEL Prestige 642R and 642R-I routers do not filter the routers' Telnet and FTP ports on the external WAN interface from inside access, allowing someone on an internal computer to reconfigure the router, if the password is known.

Learn more about our External Network Penetration Testing.