OSEC

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Re: Checking for SQL Injection

From: kevin horvath (kevin.horvathgmail.com)
Date: Wed Sep 03 2008 - 15:21:07 CDT


Just to clarify when I say delay I meant what the tool is using for a
waitfor delay. That is of course if this is what its using for its
blind sql injection. so if its using a delay of 10 seconds you should
verify by doing the same command and see if you dont get a response
until the 10 second delay is over. Also to clarify you need to
manually do this multiple times if your doing this over a WAN to make
sure latency isnt an issue since this is a time based attack. Good
luck.

On Wed, Sep 3, 2008 at 4:17 PM, kevin horvath <kevin.horvathgmail.com> wrote:
> a couple of points here. It could be using a time based injection
> (waitfor delay). Its possible that its injecting this into one of the
> vid parameters but you would need to decode/decrypt these parameters
> to see (or look at the tool and see what and how its doing its
> injecting. Its not doing it on the basic authorization so it must be
> the vid as the injection point. But to verify this you need to know
> what the delay is and verify that it is working by doing these
> mulitple times (to take into account any delay over the WAN). So you
> should do this test manually to see if this is the case. It could also
> be comparing responses for differences but you need to verify this
> manually and try your own injection and compare to see if there is any
> difference (note burp suite is an excellent tool for this).
>
> Kevin
>
> On Mon, Sep 1, 2008 at 4:35 AM, GT GERONIMO, Frederick Joseph B.
> <fbgeronimoglobetel.com.ph> wrote:
>> Hello,
>>
>> I ran a tool to verify if a website had SQL Injection. The tool detected
>> Blind SQL Injection vulnerability. I have pasted the request and
>> response below.
>>
>> Would you say that the tool's evaluation is accurate?
>>
>> Is there anything that the web application can be doing to make this a
>> false-positive?
>>
>> Thanks.
>>
>>
>> HTTP REQUEST
>> ============
>>
>> GET /prototype03/vulnerable.php?vid=zJrt&act=viewed&page=0.01 HTTP/1.0
>> Accept: */*
>> User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR
>> 1.1.4322)
>> Host: www.victim.com
>> Authorization: Basic dTI0Y29tcGg6PCEzIzw3PjlBQnVu
>> Cookie:
>> PHPSESSID=b4499547c0c4f399ba649181d5e67f5c;vid11=6512bd43d9caa6e02c990b0
>> a82652dca;vid2=c81e728d9d4c2f636f067f89cc14862c;vid4=a87ff679a2f3e71d918
>> 1a67b7542122c;vid8=c9f0f895fb98ab9159f51fd0297e236d;vid9=45c48cce2e2d7fb
>> dea1afc51c7c6ad26;vid7=8f14e45fceea167a5a36dedd4bea2543
>> Connection: Close
>> Pragma: no-cache
>>
>>
>> HTTP RESPONSE
>> =============
>>
>> HTTP/1.1 200 OK
>> Date: Fri, 29 Aug 2008 10:00:08 GMT
>> Server: Apache/2.2.9 (Unix) mod_ssl/2.2.9 OpenSSL/0.9.8b
>> mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635
>> PHP/5.2.6
>> X-Powered-By: PHP/5.2.6
>> Expires: Thu, 19 Nov 1981 08:52:00 GMT
>> Cache-Control: no-store, no-cache, must-revalidate, post-check=0,
>> pre-check=0
>> Pragma: no-cache
>> Connection: close
>> Content-Type: text/html
>>
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