full-disclosure - Re: Ubuntu 11.10 now unsecure by default

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Message-Id: <4C3C0E35-D891-461F-BD77-EAFAB8E6657E@doxpara.com>
Date: Sat, 19 Nov 2011 11:54:33 -0800
From: Dan Kaminsky <dan@...para.com>
To: "james@...o-internet.org.uk" <james@...o-internet.org.uk>
Cc: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>,
	"full-disclosure-bounces@...ts.grok.org.uk"
	<full-disclosure-bounces@...ts.grok.org.uk>
Subject: Re: Ubuntu 11.10 now unsecure by default

Er, sudo bash gives you /dev/kmem, access to the hard drive block device...

Sent from my iPhone

On Nov 19, 2011, at 11:44 AM, james@...o-internet.org.uk wrote:

> Effective user id as a short answer; compare sudo whoami and su - whoami
> 
> 
> Sent from my BlackBerry® wireless device
> 
> -----Original Message-----
> From: Dan Kaminsky <dan@...para.com>
> Date: Sat, 19 Nov 2011 11:36:47 
> To: james@...o-internet.org.uk<james@...o-internet.org.uk>
> Cc: Johan Nestaas<johannestaas@...il.com>; full-disclosure-bounces@...ts.grok.org.uk<full-disclosure-bounces@...ts.grok.org.uk>; Olivier<feuille@...ibox.fr>; full-disclosure@...ts.grok.org.uk<full-disclosure@...ts.grok.org.uk>
> Subject: Re: [Full-disclosure] Ubuntu 11.10 now unsecure by default
> 
> What is the security differential between su and sudo bash?
> 
> Sent from my iPhone
> 
> On Nov 19, 2011, at 6:15 AM, james@...o-internet.org.uk wrote:
> 
>> I'll second that; the isp I work at has a sizeable ubuntu customer base and these are customers who have made an informed decision.
>> 
>> Now; let's consider ubuntu's inherited security from debian such as configuring a 'mortal account' (admittedly can be ignored in the preseed) and then the lack of perms on su; must use sudo.
>> 
>> This is a distro that is newbie friendly but is not designed specifically for them.
>> 
>> Unfortunately, though, you make a distro with simplified tasks (printer installation a fantastic example) and people, especially long term linuxers- though I ought to be included I guess, remember back all too easily to when everything was an uphill struggle: "what do you mean I don't have to compile this as a flipping module? That's not freedom!" Being all too familiar.
>> 
>> Just my tuppence worth anyway.
>> 
>> Sent from my BlackBerry® wireless device
>> 
>> -----Original Message-----
>> From: Johan Nestaas <johannestaas@...il.com>
>> Sender: full-disclosure-bounces@...ts.grok.org.uk
>> Date: Fri, 18 Nov 2011 12:04:46 
>> To: Olivier<feuille@...ibox.fr>
>> Cc: <full-disclosure@...ts.grok.org.uk>
>> Subject: Re: [Full-disclosure] Ubuntu 11.10 now unsecure by default
>> 
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