AlstraSoft EPay Enterprise v4.0 Blind SQL Injection

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# Exploit Title: *AlstraSoft EPay Enterprise v4.0 Blind SQL Injection*
# Google Dork: *Copyright @ 2010 iPayGold.com*
# Date: *Decembar/6/2011*
# Author: *Don (BalcanCrew & BalcanHack)*
# Software Link: *http://www.alstrasoft.com/epay_enterprise.htm*
# Version: *4.0*
# Tested on: *Apache/1.3.37*
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# An attacker may execute arbitrary SQL statements on the vulnerable
system.
# This may compromise the integrity of your database and/or expose
sensitive information.
# Depending on the back-end database in use,
# SQL injection vulnerabilities lead to varying levels of data/system
access for the attacker.
# It may be possible to not only manipulate existing queries, but to UNION
in arbitrary data,
# use subselects, or append additional queries. In some cases,
# it may be possible to read in or write out to files, or to execute shell
commands on the underlying operating system.
# Certain SQL Servers such as Microsoft SQL Server contain stored and
extended procedures (database server functions).
# If an attacker can obtain access to these procedures it may be possible
to compromise the entire machine.
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Attack details:

URL encoded GET input product was set to 11-2+2*3-6

*Vulnerability:*
http://server/process.htm?action=product&member=justme&product=11-2%2b2*3-6&send=yes

*How to fix this vulnerability:*
Script should filter metacharacters from *user input*.

*Don*