Proof is in the pudding

[Douglas Brown]

On 17/05/13 10:29 AM, "Tristan Santore"
<tristan.santore at internexusconnect.net> wrote:

>On 17/05/13 01:03, Douglas Brown wrote:
>> Hi all,
>>
>> You may have seen this vulnerability talked about recently:
>> 
>>http://arstechnica.com/security/2013/05/critical-linux-vulnerability-impe
>>rils-users-even-after-silent-fix/
>>
>> After a long time of evangelising about SELinux to my sceptical
>> colleagues, this seemed like the perfect opportunity to test it.
>>
>> We tried the exploit with SELinux in permissive mode and it worked then
>> in enforcing and SELinux prevented it! Not that I'm surprised, but it's
>> nice to have a real-world exploit to demonstrate.
>>
>> Cheers,
>> Doug

>Actually, it is quite irrelevant, if the user is confined, because the
>exploit can be modified to disable selinux, giving full access to the
>system. Fact is, this exploit is quite nasty in that respect, as you can
>pretty much modify anything.
>So, in other words, it just makes the attackers life a tiny bit harder,
>unless she is a script kiddie.

If you think this is the case, please demonstrate.

Cheers,
Doug