A vulnerability in the local status page functionality of the Cisco Meraki MR, MS, MX, Z1, and Z3 product lines could allow an authenticated, remote attacker to modify device configuration files. The vulnerability occurs when handling requests to the local status page. An exploit could allow the attacker to establish an interactive session to the device with elevated privileges. The attacker could then use the elevated privileges to further compromise the device or obtain additional configuration data from the device that is being exploited.

Cisco-Meraki MS, MR, and MX devices with firmware before 2014-09-24 allow remote authenticated users to install arbitrary firmware by leveraging unspecified HTTP handler access on the local network, aka Cisco-Meraki defect ID 00478565.

Cisco-Meraki MS, MR, and MX devices with firmware before 2014-09-24 allow physically proximate attackers to obtain shell access by opening a device's case and connecting a cable to a serial port, aka Cisco-Meraki defect ID 00302077.

Cisco-Meraki MS, MR, and MX devices with firmware before 2014-09-24 allow remote attackers to obtain sensitive credential information by leveraging unspecified HTTP handler access on the local network, aka Cisco-Meraki defect ID 00302012.

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.

A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z3 Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of client-supplied parameters while establishing an SSL VPN session. An attacker could exploit this vulnerability by crafting a malicious request and sending it to the affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to crash and restart, resulting in the failure of the established SSL VPN connections and forcing remote users to initiate a new VPN connection and re-authenticate. A sustained attack could prevent new SSL VPN connections from being established. Note: When the attack traffic stops, the Cisco AnyConnect VPN server recovers gracefully without requiring manual intervention. Cisco Meraki has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meraki-mx-vpn-dos-vnESbgBf