A vulnerability was detected in Linksys E5350 1.0.00.037. This affects the function system of the file /wizard/apply.cgi. Performing a manipulation of the argument pingip/tracerouteip results in os command injection. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A flaw has been found in Linksys E5350 1.0.00.037. This impacts the function savesettings of the file /wizard/apply.cgi of the component Setup Wizard. Executing a manipulation of the argument wizardrouterpwd can lead to missing authentication. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

On Linksys E5350 WiFi Router with firmware version 1.0.00.037 and lower, (and potentially other vendors/devices due to code reuse), the /SysInfo.htm URI does not require a session ID. This web page calls a showsysinfo function which retrieves WPA passwords, SSIDs, MAC Addresses, serial numbers, WPS Pins, and hardware/firmware versions, and prints this information into the web page. This web page is visible when remote management is enabled. A user who has access to the web interface of the device can extract these secrets. If the device has remote management enabled and is connected directly to the internet, this vulnerability is exploitable over the internet without interaction.