I. VULNERABILITY

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XSS Reflected vulnerabilities in OS of FortiADC v3.2



II. BACKGROUND

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Fortinet's industry-leading, Network Security Platforms deliver Next
Generation Firewall (NGFW) security with exceptional throughput, ultra
low latency, and multi-vector threat protection.



III. DESCRIPTION

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Has been detected a XSS Reflected vulnerability in FortiADC in
"/FortiADC/gui_partA/?locale=en" parameter "locale", that allows the
execution of arbitrary HTML/script code to be executed in the context
of the victim user's browser and/or Session Hijacking attack



IV. PROOF OF CONCEPT

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The application does not validate the parameter filter in "
/FortiADC/gui_partA/?locale=en ".

https://IP_FortiADC/FortiADC/gui_partA/?locale=en"><https://IP_FortiADC/FortiADC/gui_partA/?locale=aaaa></script>
--><script>alert(document.cookie);</script>



 V. BUSINESS IMPACT

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 That allows the execution attackers to hijack the authentication of
administrators.



VI. REQUIREMENTS

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An Attacker needs to know the IP of the device.

An Administrator needs an authenticated connection to the device.



VII. SYSTEMS AFFECTED

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FortiADC 3.2.0 and lower.


VIII. SOLUTION

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Upgrade to FortiADC 3.2.1 or higher.

IX. References

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http://www.fortiguard.com/advisory/FG-IR-14-004/

By William Costa.