full-disclosure - Re: Buffer Overflow in dnsmap 0.22 - DNS Network Mapper by pagvac (gnucitizen.org)

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Date: Wed, 25 Feb 2009 11:33:02 -0500
From: Jason Starks <jstarks440@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: Buffer Overflow in dnsmap 0.22 - DNS Network
	Mapper by pagvac (gnucitizen.org)

Sweet. If that is true, you should get to work on an actual exploit right
away. We wouldn't want the immortal ./ segmentation fault doesn't affect
your stature on this list.

On Wed, Feb 25, 2009 at 11:24 AM, srl <security.research.labs@...il.com>wrote:

> Dear Jason Starks,
>
> It can be exploited remote via XXS it the attack vectors API's and
> framework made by PDP, btw great work PDP and gnucitizen.org security
> team, keep up the good work. I now try to attach gdb to javascript to do
> remove exploatation of dnsmap
>
>
>
> On Wed, Feb 25, 2009 at 6:10 PM, Jason Starks <jstarks440@...il.com>wrote:
>
>> I'm going to say dnsmap isn't suid or sguid, and a segmentation fault can
>> occur after triggering a simple programming error (you've shown no signs of
>> code execution). Terrrrrrrific.
>>
>> On Wed, Feb 25, 2009 at 10:36 AM, srl <security.research.labs@...il.com>wrote:
>>
>>>  Security Advisory:
>>>
>>> PRODUCT
>>> ************
>>> http://www.gnucitizen.org/blog/new-version-of-dnsmap-out/
>>> http://www.gnucitizen.org/static/blog/2009/02/dnsmap-022.tar
>>>
>>> This this is a great tool, used by the two pentesters, pagvac and pdp
>>>
>>> TECHNICAL DESCRIPTION
>>> ********************************
>>> A local buffer overflow exist in dnsmap 0.22.
>>> $ dnsmap -r `perl -e 'print "A"x250'`
>>> dnsmap 0.22 - DNS Network Mapper by pagvac (gnucitizen.org)
>>>
>>> Segmentation fault
>>>
>>> SOLUTION
>>> *************
>>> Wait until pagvac will learn about strncpy().
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
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>>
>>
>> _______________________________________________
>> Full-Disclosure - We believe in it.
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>
>

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