This script is Copyright (C) 2015 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
The CodeIgniter changelog reports :
Security: The xor_encode() method in the Encrypt Class has been
removed. The Encrypt Class now requires the Mcrypt extension to be
Security: The Session Library now uses HMAC authentication instead of
a simple MD5 checksum.
See also :
Update the affected package.
Risk factor :
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