Tenda AC8

Tenda AC8 Web UploadCfg route_set_user_policy_rule os command injection

Tenda AC8V4 V16.03.34.06` was discovered to contain heap overflow at /goform/GetParentControlInfo.The manipulation of the argument `mac` leads to heap-based buffer overflow.

Tenda AC8 V16.03.34.06 was discovered to contain a stack overflow via the src parameter in the function sub_47D878.

Tenda AC8 V16.03.34.06 is vulnerable to Buffer Overflow in the get_parentControl_list_Info function.

Tenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/WifiGuestSet. The manipulation of the argument `shareSpeed` leads to stack-based buffer overflow.

Tenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/SetSysTimeCfg. The manipulation of the argument `timeZone` and `timeType` leads to stack-based buffer overflow.

Tenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/fast_setting_wifi_set. The manipulation of the argument `timeZone` leads to stack-based buffer overflow.

An issue was discovered in Tenda AC8 v4.0 AC1200 Dual-band Gigabit Wireless Router AC8v4.0 Firmware 16.03.33.05. The root password of the device is calculated with a static string and the last two octets of the MAC address of the device. This allows an unauthenticated attacker to authenticate with network services on the device.