[12253] in bugtraq

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Re: PAM applications running as root (Was Re: WebTrends Enterprise

daemon@ATHENA.MIT.EDU (Alan Cox)
Fri Oct 15 20:59:06 1999

Content-Type: text
Message-Id:  <E11cAZY-0004s7-00@the-village.bc.nu>
Date:         Fri, 15 Oct 1999 17:51:15 +0100
Reply-To: Alan Cox <alan@LXORGUK.UKUU.ORG.UK>
From: Alan Cox <alan@LXORGUK.UKUU.ORG.UK>
X-To:         darren.moffat@sunuk.UK.Sun.COM
To: BUGTRAQ@SECURITYFOCUS.COM
In-Reply-To:  <199910142152.WAA08467@otis.UK.Sun.COM> from "Darren Moffat" at
              Oct 14, 99 02:52:59 pm

> It is NOT a requirement of the PAM framework that application be running as
> root.  There are two cases though that make login type applications need to
> run as root.
>
> 	1) The password is stored in /etc/shadow which only root can read
> 	   If the password was in NIS/NIS+/LDAP then the authentication
> 	   could succeed are an ordinary user.

This is not correct either. A good PAM implementation supports shadow
authentication (although not update) via setuid helpers

Alan

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