Improper certificate
validation in firmware update logic in NETGEAR RAX30 (Nighthawk AX5 5-Stream
AX2400 WiFi 6 Router) and RAXE300 (Nighthawk AXE7800 Tri-Band
WiFi 6E Router) allows attackers with the ability to intercept and
tamper traffic destined to the device to execute arbitrary commands on the
device.
Devices
with automatic updates enabled may already have this patch applied. If not,
please check the firmware version and update to the
latest.
Fixed in:
RAX30 firmware
1.0.14.108 or later.
RAXE300 firmware
1.0.9.82 or later
When uploading a firmware image to a Netgear Nighthawk Wifi6 Router (RAX30), a hidden “forceFWUpdate” parameter may be provided to force the upgrade to complete and bypass certain validation checks. End users can use this to upload modified, unofficial, and potentially malicious firmware to the device.
Any request send to a Netgear Nighthawk Wifi6 Router (RAX30)'s web service containing a “Content-Type” of “multipartboundary=” will result in the request body being written to “/tmp/mulipartFile” on the device itself. A sufficiently large file will cause device resources to be exhausted, resulting in the device becoming unusable until it is rebooted.