-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Response: Cisco Smart Install Protocol Misuse Response ID: cisco-sr-20170214-smi Revision 1.0 For Public Release 2017 February 14 16:00 UTC (GMT) +--------------------------------------------------------------------- Summary ======= Several researchers have reported on the use of Smart Install (SMI) protocol messages toward Smart Install clients, also known as integrated branch clients (IBC), allowing an unauthenticated, remote attacker to change the startup-config file and force a reload of the device, upgrade the IOS image on the device, and execute high-privilege CLI commands on switches running Cisco IOS and IOS XE Software. Cisco does not consider this a vulnerability in Cisco IOS, IOS XE, or the Smart Install feature itself but a misuse of the Smart Install protocol that by design does not require authentication. Customers who seek more than zero-touch deployment should consider deploying the Cisco Network Plug and Play solution instead. Cisco has updated the Smart Install Configuration Guide to include security best practices regarding the deployment of the Cisco Smart Install feature within customer infrastructures: http://www.cisco.com/c/en/us/td/docs/switches/lan/smart_install/configuration/guide/smart_install/concepts.html#23355 This response is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityResponse/cisco-sr-20170214-smi -----BEGIN PGP SIGNATURE----- iQIVAwUBWKMqP689gD3EAJB5AQIhmg//bOM1Zdt3KCjzNpQ2dCyOVDA8l1yM6h4w MJMUE8kqxUHKtKP9dCqDNKJt18XEWX1hOBNitiUqCIksaLDntRDjlkuA9dAayAHE s7zvlrjV0OWJ9gNjUAc7Kb8fhwQVf3FIBiuRciy14y+8WBeTBGejYZgdK6vax0BQ /uP16dlViu+dUSmS3+K79lZ+7oJUKJWEcniA1dmvT6Rn5V5asj7sy9W6CA+X9ehm kahOFeZJibnynFX6cDH1V7gvnWbo62PtgZ+NPkRFscXIlJhAYUOxFLOdF227GBRo sTvjfitx64uWVd2u3HFDPmFAw1V2dX86AlNm8P8Bp6S2+jvJ3SprZZ1j3+vt1AEn j5L5sc7IJpjCjj/JLxFI3iQOBZBnXQXU4XHxvdorMt067CijcwQbPYSM52oAdG8d Bemos1BvBt5q/yIUV/tkYchdFMNsUrPBEjma4xf3l4RQQsrYvDhbJRTVi/z4Tjhw fT6I3NHax2rxIc936l3zMXsPSPCbpjKYMWPA0xraIfceCi6Ujkm/0aX5Lxx/rAa7 Utcg/pMDFNpl+LWyPhJ1egTvRjNm8XDnIsDmybmUdssxjp0RtJHAUDyKlu+OKK4g X3/8i+Ke0XrYFj2aag809ykRhwydveIJ3BFoUp7HiiAA5lOslR0g7hs30WgTW5UK rsLWNm4W6vw= =4PAE -----END PGP SIGNATURE-----
