VAR-200409-0092
Vulnerability from variot - Updated: 2022-05-17 01:50Dynalink RTA 230 is a Linux-based ADSL router. The Dynalink RTA 230 has a default backdoor account that an attacker can use to control the entire ADSL device. According to the check /etc/passwd, you can find two default accounts: # cat /etc/passwd admin:xxxxx(obscured)xxxxx:0:0:Administrator:/:/bin/sh userNotUsed:YNf8oSCwK/0/Y:0: 0: Technical Support: /:/bin/sh These accounts cannot be modified and visible in the web configuration application. However, the WEB configuration application and the telnet service do not listen on the WAN interface by default. An attacker with access to the internal interface can fully control the ADSL device. Other devices that use similar firmware may also have this problem. Devices that may be affected by this vulnerability are: - US Robotics 9105 and 9106 - Siemens SE515 - Buffalo WMR-G54. It is reported that the firmware contains a backdoor account. This account is not visible or modifiable from the web administration interface
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