An access control issue in Wavlink WiFi-Repeater RPTA2-77W.M4300.01.GD.2017Sep19 allows attackers to obtain the telnet password via accessing the page tftp.txt.Referenceshttps://www.wavlink.com/en_us/category/REPEATER.htmlhttps://github.com/pghuanghui/CVE_Request/blob/main/WiFi-Repeater/WiFi-Repeater_syslog.shtml.assets/WiFi-Repeater_tftp.md