bug#3712: marked as done (23.1.50; SECURITY: Tramp creates -rwxrwxrwx permission files with /su and /sudo method)

[Emacs bug Tracking System]

Your message dated Tue, 30 Jun 2009 19:36:32 +0300
with message-id <878wj9fzlb.fsf@iki.fi>
and subject line Re: bug#3712: 23.1.50; SECURITY: Tramp creates -rwxrwxrwx 
permission files with /su and /sudo method
has caused the Emacs bug report #3712,
regarding 23.1.50; SECURITY: Tramp creates -rwxrwxrwx permission files with /su 
and /sudo method
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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-- 
3712: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=3712
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems
> --- Begin Message ---
>
>
>
> Subject: 
>
> 23.1.50; SECURITY: Tramp creates -rwxrwxrwx permission files with /su and /sudo method
>
>
>
>
> Date: 
>
> Mon, 29 Jun 2009 18:16:30 +0300
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)
>
>
>
>
> When method /su: or /sudo: is used to _create_ a file the file's
> permission will be set to -rwxrwxrwx (777), that is, allow everything
> for everyone. Obviously this is serious security bug. Steps to
> reproduce:
>
>  1. Start Emacs as a normal user:
>
>         emacs -Q
>
>  2. Create a file in a directory to which the user who launched this
>     Emacs session doesn't have write access.
>
>         C-x C-f /su::/root/test.txt
>
>  3. Write some content to the file and save it with "C-x C-s".
>
>  4. Check file's permissions. It has 777 permission bits:
>
>         $ ls -l /root/test.txt
>         -rwxrwxrwx 1 root root 5 2009-06-29 17:58 /root/test.txt
>
> For some reason, if I create similar file to the same user's home
> directory who launched this Emacs session (/su::$HOME/test.txt) then it
> gets 644 permissions (probably honoring umask settings).
>
>
> In GNU Emacs 23.1.50.4 (i686-pc-linux-gnu, GTK+ Version 2.12.12)
>  of 2009-06-29 on mithlond
> Windowing system distributor `The X.Org Foundation', version 11.0.10402000
> configured using `configure  '--prefix=/home/dtw/local''
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#3712: 23.1.50; SECURITY: Tramp creates -rwxrwxrwx permission files with /su and /sudo method
>
>
>
>
> Date: 
>
> Tue, 30 Jun 2009 19:36:32 +0300
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)
>
>
>
>
> On 2009-06-30 17:34 (+0200), Michael Albinus wrote:
>
> > OK, you've convinced me. Execution bits are removed now for newly
> > created remote files.
>
> > If it works also for you it is OK for me.
>
> It seems to work perfectly now. Huge thanks! I'm happy to close this
> bug.
>
> --- End Message ---