Passwd file

[heilpern at BRL.MIL]

In article <3474 at altos86.Altos.COM> uunet!ncar.UCAR.EDU!boulder!fred!bobk (Bob Kinne) writes:
>What is the purpose of the following /etc/passwd entry?
>
>::0:0:::    (null login, password, and shell)

There is no good purpose of this line, it is a pretty serious
security flaw. It was caused when 1) a blank line existed in the
passwd file, and then 2) someone ran the passwd (change passwd)
command. Remove this line (or have your adminitrator do it)
immediately, and make sure there is never any blank lines in your
passwd file again.

>Thanks.

You're welcome,
	Mark A. Heilpern
	--M.
	heilpern at brl.mil