lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Thu, 11 Mar 2010 17:53:19 -0800
From:	Jeremy Allison <jra@...ba.org>
To:	Michael Adam <obnox@...ba.org>
Cc:	Jeff Layton <jlayton@...ba.org>,
	Jon Severinsson <jon@...erinsson.net>,
	linux-cifs-client@...ts.samba.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, vl@...ba.org
Subject: Re: [linux-cifs-client] [RFC PATCH] CIFS posix acl permission
	checking

On Thu, Mar 11, 2010 at 11:45:29PM +0100, Michael Adam wrote:
> 
> When discussing this with Volker today, he had a different idea:
> One could implement a trans2 impersonate call in samba (as a new
> call in the unix extensions) that could be used to transfer the
> session established by the privileged user (root, say) to a
> different user specified as an argument to the call -- without
> the need to give credentials! Then this call could be used in
> the multi user mount scenario: when uid 1000 accesse the cifs
> mount then the root-dispatcher mount would create a new session
> initially as root and issue an impersonate call to user 1000
> directly afterwards.
> 
> Wouldn't that be something worth considering?

This world work, but protocol cleanliness-wise it's
*really* horrible :-).

Jeremy.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists