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ZKTeco ZKBioSecurity 3.0 (visLogin.jsp) Local Authorization Bypass


Vendor: ZKTeco Inc. | Xiamen ZKTeco Biometric Identification Technology Co.,ltd
Product web page: http://www.zkteco.com
Affected version: 3.0.1.0_R_230
                  Platform: 3.0.1.0_R_230
                  Personnel: 1.0.1.0_R_1916
                  Access: 6.0.1.0_R_1757
                  Elevator: 2.0.1.0_R_777
                  Visitor: 2.0.1.0_R_877
                  Video:2.0.1.0_R_489
                  Adms: 1.0.1.0_R_197

Summary: ZKBioSecurity3.0 is the ultimate "All in One" web based security
platform developed by ZKTeco. It contains four integrated modules: access
control, video linkage, elevator control and visitor management. With an
optimized system architecture designed for high level biometric identification
and a modern-user friendly UI, ZKBioSecurity 3.0 provides the most advanced
solution for a whole new user experience.

Desc: The issue exist due to the way visLogin.jsp script processes the login
request via the 'EnvironmentUtil.getClientIp(request)' method. It runs a check
whether the request is coming from the local machine and sets the ip variable
to '127.0.0.1' if equal to 0:0:0:0:0:0:0:1. The ip variable is then used as a
username value with the password '123456' to authenticate and disclose sensitive
information and/or do unauthorized actions. 

Tested on: Microsoft Windows 7 Ultimate SP1 (EN)
           Microsoft Windows 7 Professional SP1 (EN)
           Apache-Coyote/1.1
           Apache Tomcat/7.0.56


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2016-5367
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5367.php


18.07.2016

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C:\Program Files (x86)\BioSecurity\MainResource\tomcat\webapps\ROOT\visLogin.jsp:
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1:  <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
2:  <%@page import="com.zk.common.util.EnvironmentUtil"%>
3:  <%
4:  String path = request.getContextPath();
5:  String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
6:
7:  String ip= EnvironmentUtil.getClientIp(request);
8:  if("0:0:0:0:0:0:0:1".equals(ip))
9:  {
10:     ip = "127.0.0.1";
11: }
12:
13: %>
14: <jsp:include  page="login.jsp"/>
15:   <script type="text/javascript" src="/vis/js/jquery.cookie.js"></script>
16:
17:   <script>
18:       function autoLogin()
19:       {
20:                 $.cookie('backUrl', "visRegistrationAction!registrationTouch.action?type=touch", { expires: 1 });
21:                 $.cookie('customerBackUrl', "visRegistrationAction!registrationTouch.action?type=touch", { expires: 1 });
22:         var ip = "<%=ip%>";
23:         $("#userLoginForm input[name='username']").val(ip);
24:         $("#userLoginForm input[name='password']").val("123456");
25:         $('#userLoginForm').submit();
26:       }
27:       window.onload=autoLogin;
28: </script>

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