full-disclosure - Re: Advisory: sudo 1.8 Format String Vulnerability

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Date: Tue, 31 Jan 2012 17:45:32 +0100
From: joernchen of Phenoelit <joernchen@...noelit.de>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: Advisory: sudo 1.8 Format String Vulnerability

Hi,

On 01/31/2012 05:14 PM, Todd C. Miller wrote:
>
> joernchen is correct, it is probably still possible to exploit with
> -D_FORTIFY_SOURCE=2, though it is more difficult.  On systems with
> ASLR and a non-executable stack it should be even harder.

nasty thing is: it's a local exploit so you got nearly unlimited tries
for free =). It will just be noisy in dmesg due to all the segfaults
while brute forcing the right values.

cheers,

joernchen
-- 
joernchen ~ Phenoelit
<joernchen@...noelit.de> ~ C776 3F67 7B95 03BF 5344
http://www.phenoelit.de  ~ A46A 7199 8B7B 756A F5AC

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