Re: Orange Spain disclosing user phone number

["xufi ." <xufxuf () gmail com>]

Orange Spain has updated it´s GW configuration and it´s not adding the
user MSISDN by default anymore.
Another example that responsible disclosure is not always enough.
Thanks for helping fixing this
@xuf_


On Mon, Aug 30, 2010 at 4:48 PM, B1towel <ben () b1towel com> wrote:
> It would be funny to see advertisers send targeted SMS ads using this. I bet
> that the advertisers of web sites that participate in iframe ads would also
> get this information, assuming the Phone would load up iframe ads.
> I think the provider should fix this, because if someone developed an
> exploit similar to the one that was able to compromise the iPhone a while
> back just by sending a maliciously formed SMS message, your phone could be
> compromised just by going to a website where this information is sent to the
> web server.
> I know this is pretty obvious, just my 2 cents.
> On Aug 30, 2010, at 7:00 AM, full-disclosure-request () lists grok org uk
> wrote:
>
>
> Message: 2
> Date: Sun, 29 Aug 2010 21:09:50 +0200
> From: "xufi ." <xufxuf () gmail com>
> Subject: [Full-disclosure] Orange Spain disclosing user phone number
> To: full-disclosure () lists grok org uk
> Message-ID:
> <AANLkTinKy8UsAkPd0gg5UoSESdfeNE8bhjAA-OepKO1Q () mail gmail com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi,
> Doing an assessment on mobile GWs I found that Orange Spain is adding
> the user MSISDN in any HTTP request sent in it?s network. That means
> that is really simple to get the user phone number from a Orange Spain
> user. On one hand, I saw that Orange Spain uses the header
> x-up-calling-line-id to add a user temporary ID that changes every 24h
> but I also found that in any HTTP request they will add the user phone
> number in the header X-Network-info. In particular the HTTP header
> looks like as follow:
>
> X-Network-info: CSD,34xxxxxxxxx,unsecured
>
> where xxxxxxxxx is the user MSISDN
>
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/