Re: [Full-disclosure] Facebook Attach EXE Vulnerability

[Pablo Ximenes <pablo@xxxxxxxx>]

I see. I have seen this kinda behavior from vendors too often. I supose the
reason for this is the flood of false positives. I think they need a better
way to sift the wheat from the chaff.

Congrats for your work!

2011/10/28 Nathan Power <np@xxxxxxxxxxxxxxxxxxx>

> I was basically told that Facebook didn't see it as an issue and I was
> puzzled by that. Ends up the Facebook security team had issues reproducing
> my work and that's why they initially disgarded it. After publishing, the
> Facebook security team re-examined the issue and by working with me they
> seem to have been able to reproduce the bug.
>
>
> Nathan Power
> www.securitypentest.com
>
>
> On Fri, Oct 28, 2011 at 11:18 AM, Pablo Ximenes <pablo@xxxxxxxx> wrote:
>
>> Not fixed yet. At least not yesterday when I checked.
>>
>> Nathan, didn't Facebook ask for some time to fix this bug after they have
>> acknowledged it?
>>
>>
>> Pablo Ximenes
>> <http://ximen.es/>http://ximen.es/
>> <http://twitter.com/pabloximenes>http://twitter.com/pabloximenes
>>
>> Em 27/10/2011, às 19:29, Joshua Thomas < <rappercrazzy@xxxxxxxxx>
>> rappercrazzy@xxxxxxxxx> escreveu:
>>
>>  can't believe such was on FB  .... wahahaha !!! lol ....rofl ...
>>
>> When was this discovered and fixed ?
>>
>>
>> On Thu, Oct 27, 2011 at 1:02 AM, Nathan Power < 
>> <np@xxxxxxxxxxxxxxxxxxx><np@xxxxxxxxxxxxxxxxxxx>
>> np@xxxxxxxxxxxxxxxxxxx> wrote:
>>
>>>
>>> ---------------------------------------------------------------------------------
>>> 1. Summary:
>>>
>>> When using the Facebook 'Messages' tab, there is a feature to attach a
>>> file.
>>> Using this feature normally, the site won't allow a user to attach an
>>> executable file.
>>> A bug was discovered to subvert this security mechanisms. Note, you do
>>> NOT have
>>> to be friends with the user to send them a message with an attachment.
>>>
>>>
>>> ---------------------------------------------------------------------------------
>>>
>>> Read the rest of this advisory here:
>>>
>>> <http://www.securitypentest.com/2011/10/facebook-attach-exe-vulnerability.html><http://www.securitypentest.com/2011/10/facebook-attach-exe-vulnerability.html>
>>> http://www.securitypentest.com/2011/10/facebook-attach-exe-vulnerability.html
>>>
>>>
>>> Enjoy :)
>>>
>>>
>>> Nathan Power
>>> <http://www.securitypentest.com> <http://www.securitypentest.com>
>>> www.securitypentest.com
>>>
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>>
>> _______________________________________________
>> Full-Disclosure - We believe in it.
>> Charter: 
>> <http://lists.grok.org.uk/full-disclosure-charter.html><http://lists.grok.org.uk/full-disclosure-charter.html>
>> http://lists.grok.org.uk/full-disclosure-charter.html
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>>
>

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Full-Disclosure - We believe in it.
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