CVE-2017-20204

DBLTek GoIP devices models GoIP 1, 4, 8, 16, and 32 contain an undocumented vendor backdoor in the Telnet administrative interface that allows remote authentication as an undocumented user via a proprietary challenge–response scheme which is fundamentally flawed. Because the challenge response ca...

CVE-2017-20204

DBLTek GoIP devices models GoIP 1, 4, 8, 16, and 32 contain an undocumented vendor backdoor in the Telnet administrative interface that allows remote authentication as an undocumented user via a proprietary challenge–response scheme which is fundamentally flawed. Because the challenge response ca...

CVE-2017-20204

CVE-2017-20204 affects DBLTek GoIP voice gateway devices (GoIP 1, 4, 8, 16, 32). The Telnet admin interface contains an undocumented vendor backdoor that enables remote authentication as an undocumented user via a flawed challenge–response scheme. Because the challenge can be derived from itself,...