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0x01 Vulnerability description

A vulnerability is in the 'tftp.txt' page of the Wavlink-WiFi-Repeater,Firmware package version RPTA2-77W.M4300.01.GD.2017Sep19,The attacker can access the constructed page to obtain the telnet account password.

Unauthorized users can obtain the key information of the router by visiting:

http://xxx.xxx.xxx.xxx/tftp.txt

0x02 Affected version

Wavlink-WiFi-Repeater

0x03 Vulnerability

The txt text does not set reasonable access rights.

0x04 PoC verification

image-20220623150043519

image-20220623152150836

0x05 Acknowledgement

Penwei.Huang