The default configuration of sshd_config in Cisco Mobility Services Engine (MSE) through 8.0.120.7 allows logins by the oracle account, which makes it easier for remote attackers to obtain access by entering this account's hardcoded password in an SSH session, aka Bug ID CSCuv40501.
http://www.securitytracker.com/id/1034065
http://www.securityfocus.com/bid/77432
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151104-mse-cred