[juneau-lug] Re: visudo

  • From: James Zuelow <e5z8652@xxxxxxxxxx>
  • To: juneau-lug@xxxxxxxxxxxxx
  • Date: Tue, 03 Feb 2004 16:35:03 -0900

On Tue, 03 Feb 2004 10:27:03 -0900
Stephen <sbodnar@xxxxxxx> wrote:

> The scripts, if I remember correctly, mostly used !/bin/sh but called
> up RCS so the file could only be editted by one session at a time. This
> was to prevent corruption of live system files, but also prevented the
> security problems mentioned above.
> 
> Stephen

System security tricks like that would be an interesting thing to go over at a 
meeting sometime.  I'd like to see someone demo an exploit taking advantage of 
editing /etc/passwd or /etc/sudoers insecurely, and then some ways of 
preventing that aside from "use visudo".  I know that my knowledge in the area 
is really very weak.

Cheers,

James

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