bugtraq - Re: Red Hat 9: free tickets

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 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <3F0F0234.4020808@bcgreen.com>
Date: Fri, 11 Jul 2003 11:30:12 -0700
From: Stephen Samuel <samuel@...reen.com>
To: Jon Hart <warchild@...ofed.org>
Cc: vuln-dev@...urityfocus.com, bugtraq@...urityfocus.com
Subject: Re: Red Hat 9: free tickets

Jon Hart wrote:
> On Sun, Jul 06, 2003 at 12:30:34PM -0700, Stephen Samuel wrote:

>>Proof of concept:
>>
>>as youreslf:
>>ln -s /var/run/sudo/$USER/unknown:root /tmp/oops
>>
>>as root:
>>touch /tmp/oops

> Actually, I'm not sure this entirely true.  Well, it is, but there is
> another important condition that must be met for this (or similar)
> attacks to work properly -- /var/run/sudo/$USER/ must exist.  This means
> that the user must have previously sudo'd at lease once and
> /var/run/sudo/$USER/ will have been created.

Yep. that sounds accurate, but it just raised another point for me
(not quite blazingly obvious, but an issue to remember, nontheless):

If, as an administrator, you use the GUI password thing to acces
an admin function, you have to remember to (must be done as root)(
remove the /var/run/sudo/$USER/* files -- or else the user has
(essentially) full root prives until the file expires.

I think that redhat should allow some way (and I really think
it should be the default state) for people to indicate that
they do *NOT* want the system to remember that authorization.

-- 
Stephen Samuel +1(604)876-0426                samuel@...reen.com
		   http://www.bcgreen.com/~samuel/
    Powerful committed communication. Transformation touching
        the jewel within each person and bring it to life.