Internet Security


Computer systems becoming more and more dependent on Internet

At same time becoming more and more vulnerable to attack via Internet

Test networks for vulnerability --

Try all possible forms of illegal access

Try to use legal access as loophole to illegal access

SATAN (Security Administrator Tool for Analyzing Networks)

Tool to help systems administrators --

Recognizes several common network-related security problems

Reports problems without exploiting them

SATAN explains each problem, what its impact could be, what can be done about problem

Sample problems --

Private file systems accessible to outsiders

Arbitrary files accessible via ftp

Password files accessible to outsiders

Old e-mail software with large security gaps