# CVE-2021-46006
## Test page exists in Totolink A3100R V5.9c.4577
by KVS
* Description
Missing Authentication for Critical Function. "test.asp" contains an API-like function, which is not authenticated. Using this function, an attacker can configure multiple settings without authentication.
* Affected version
Totolink A3100R V5.9c.4577
* Root Cause Analysis
The test page,test.asp, exists in the target device. It offers an API-like function, which is accessible by any user. An attacker with access to the victim device can configure all settings without any authentication, such as enable telnet.
* Proof-of-Concept
{%youtube Cw-LTTyRLXk %}