Campbell Scientific CR1000KD CR1000 Measurement and Control System - Page 72

Section 5. System Overview LoggerNet: • All datalogger functions and data are easily accessed via RS-232 and Ethernet using Campbell Scientific datalogger support software. • Cora command find-logger-security-code. Telnet: • Watch IP traffic in detail. IP traffic can reveal potentially sensitive information such as FTP login usernames and passwords, and server connection details including IP addresses and port numbers. • Watch serial traffic with other dataloggers and devices A Modbus capable power meter is an example. • View data in the Public and Status tables. • View the datalogger program, which may contain sensitive intellectual property, security codes, usernames, passwords, connection information, and detailed or revealing code comments. FTP: • Send and change datalogger programs. • Send data that have been written to a file. HTTP: • Send datalogger programs. • View table data. • Get historical records or other files present on the datalogger drive spaces. • More access is given when a .csipasswd is in place (so make sure users with administrative rights have strong log-in credentials) 5.1.10.2 Pass-code Lockout Pass-code lockouts (historically known simply as "security codes") are the oldest method of securing a Campbell Scientific datalogger. Pass-code lockouts can effectively lock out innocent tinkering and discourage wannabe hackers on non-IP based telecommunications links. However, any serious hacker with physical access to the datalogger or to the telecommunications hardware can, with only minimal trouble, overcome the five-digit pass-codes blocking access. Systems that can be adequately secured with pass-code lockouts are probably limited to: • private, non-IP radio networks • direct links (hardwire RS-232, short-haul, multidrop, fiber optic) • non-IP satellite • land-line, non-IP based telephone, where the telephone number is not published. • cellular phone wherein IP has been disabled, providing a strictly serial connection. 72