Cisco-Meraki MS, MR, and MX devices with firmware before 2014-09-24 allow remote attackers to execute arbitrary commands by leveraging know…

Cisco-Meraki MS, MR, and MX devices with firmware before 2014-09-24 allow remote attackers to execute arbitrary commands by leveraging knowledge of a cross-device secret and a per-device secret, and sending a request to an unspecified HTTP handler on the local network, aka Cisco-Meraki defect ID 00301991.