delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2002/01/21/04:40:23

Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Date: Mon, 21 Jan 2002 10:39:59 +0100
From: Corinna Vinschen <cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: security with the ftp daemon
Message-ID: <20020121103959.G11608@cygbert.vinschen.de>
Mail-Followup-To: cygwin AT cygwin DOT com
References: <002c01c1a23f$ac0f2e80$2801a8c0 AT DCUTHBERT2K>
Mime-Version: 1.0
In-Reply-To: <002c01c1a23f$ac0f2e80$2801a8c0@DCUTHBERT2K>
User-Agent: Mutt/1.3.22.1i

On Mon, Jan 21, 2002 at 02:51:29PM +0900, Dylan Cuthbert wrote:
> Hi there,
> 
> I've set up the ftp server with inetutils on win2k, but I get a strange
> security hole.
> 
> I've set permissions so that only "Administrators" can access the cygwin
> directories.  The home directories are only accessible by their respective
> users and /bin is Everyone and read-only.
> 
> However, after setting this up and rebooting the machine once, if I ftp in
> as a regular user I can access all the administrator priviledge directories
> (in read/write mode!) with no problem at all.  Is this a known problem and
> is there a way to get it to work securely?  Surely the ftp daemon should
> switch its user to the id of the person logging in?

Check if your /etc/group is setup correctly.  If the group of
the user doesn't exist,  setgid() falls back to the admins group
currently.

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019