WebApp Sec mailing list archives

Re: htaccess with apache


From: António Vasconcelos <vasco () all-2-it com>
Date: Fri, 07 Nov 2003 14:12:34 +0000

Tim Greer wrote:

the traditional buffer overflow in malloc() and memcpy() or strcpy() shows just that.

How is this relevant to the permissions on passwd?

Just to show how easy is to do something that looks to be inocent and turns out to be a major security problem.

(unless your server isn't set up well), and save the resources since
your server is secured properly.  Oh well, to each their own, but I have
to wonder when people make a big deal about something that's not.
I'm not talking about good/bad server setup.
It's just that the username/password authentication mecanism is a weak one, and I know that, if possible, users will use a bad or easy to guess password. My experience tells me that about 10% of the users _do_ choose a pasword that can be retrived just from the username and GECOS fields, plus one or two digits.

So, disclosing the /etc/passwd file is something that should not be done, and should not be regarded as trivial. As it _may_ contain info valuable for someone that wants to break into your sistem. You should not regard anithing as trivial just because you don't know how (or if) it can be used against you.
--

António  Vasconcelos
/(Administrador de Sistemas)
ALL2IT-Infocomunicações, SA
Torre de Monsanto, 6º Piso
Miraflores, Algés
PORTUGAL
Telf.: + 351 21 412 39 50
Fax.: + 351 21 410 51 94/



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