The web management interface of Ubiquiti airMAX, airFiber, airGateway and EdgeSwitch XP (formerly TOUGHSwitch) allows an unauthenticated attacker to upload and write arbitrary files using directory traversal techniques. An attacker can exploit this vulnerability to gain root privileges. This vulnerability is fixed in the following product versions (fixes released in July 2015, all prior versions are affected): airMAX AC 7.1.3; airMAX M (and airRouter) 5.6.2 XM/XW/TI, 5.5.11 XM/TI, and 5.5.10u2 XW; airGateway 1.1.5; airFiber AF24/AF24HD 2.2.1, AF5x 3.0.2.1, and AF5 2.2.1; airOS 4 XS2/XS5 4.0.4; and EdgeSwitch XP (formerly TOUGHSwitch) 1.3.2.

A malicious actor in Wi-Fi range of the affected product could leverage a vulnerability in the airMAX Wireless Protocol to achieve a remote code execution (RCE) within the affected product.

An improper access validation vulnerability exists in airMAX AC <8.7.11, airFiber 60/LR <2.6.2, airFiber 60 XG/HD <v1.0.0 and airFiber GBE <1.4.1 that allows a malicious actor to retrieve status and usage data from the UISP device.