I. VULNERABILITY ------------------------- XSS Reflected vulnerabilities in OS of FortiADC v3.2 II. BACKGROUND ------------------------- 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 ------------------------- 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 ------------------------- 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 ------------------------- That allows the execution attackers to hijack the authentication of administrators. VI. REQUIREMENTS ----------------------- An Attacker needs to know the IP of the device. An Administrator needs an authenticated connection to the device. VII. SYSTEMS AFFECTED ------------------------- FortiADC 3.2.0 and lower. VIII. SOLUTION ------------------------- Upgrade to FortiADC 3.2.1 or higher. IX. References ------------------------- http://www.fortiguard.com/advisory/FG-IR-14-004/ By William Costa.