找回SecureCRT密码

爱被打了一巴掌 2023-10-03 03:13 2阅读 0赞

## 使用 ##

**先看后面的安装，Python脚本保存为SecureCRTDecrypt.py**  
用法  
`python SecureCRTDecrypt.py [filename...]`  
例子

[@bx_5_219 /tmp]# python SecureCRTDecrypt.py 10.10.123.123.ini   
    10.10.123.123.ini
    ssh root@10.10.70.30 # I'mpassword

## 依赖包 ##

安装解密依赖包pycrypto  
下载

https://pypi.python.org/pypi/pycrypto
    wget https://pypi.python.org/packages/source/p/pycrypto/pycrypto-2.6.1.tar.gz

解压安装

tar -zxvf pycrypto-2.6.1.tar.gz
    cd pycrtyto-2.6.1
    python setup.py build
    python setup.py install

## 密文解密程序 ##

保存为SecureCRTDecrypt.py

from Crypto.Cipher import Blowfish
    import argparse
    import re
    
    def decrypt(password) :
        c1 = Blowfish.new('5F B0 45 A2 94 17 D9 16 C6 C6 A2 FF 06 41 82 B7'.replace(' ','').decode('hex'), Blowfish.MODE_CBC, '\x00'*8)
        c2 = Blowfish.new('24 A6 3D DE 5B D3 B3 82 9C 7E 06 F4 08 16 AA 07'.replace(' ','').decode('hex'), Blowfish.MODE_CBC, '\x00'*8)
        padded = c1.decrypt(c2.decrypt(password.decode('hex'))[4:-4])
        p = ''
        while padded[:2] != '\x00\x00' :
            p += padded[:2]
            padded = padded[2:]
        return p.decode('UTF-16')
    
    REGEX_HOSTNAME = re.compile(ur'S:"Hostname"=([^\r\n]*)')
    REGEX_PASWORD = re.compile(ur'S:"Password"=u([0-9a-f]+)')
    REGEX_PORT = re.compile(ur'D:"\[SSH2\] Port"=([0-9a-f]{8})')
    REGEX_USERNAME = re.compile(ur'S:"Username"=([^\r\n]*)')
    
    def hostname(x) :
        m = REGEX_HOSTNAME.search(x)
        if m :
            return m.group(1)
        return '???'
    
    def password(x) :
        m = REGEX_PASWORD.search(x)
        if m :
            return decrypt(m.group(1))
        return '???'
    
    def port(x) :
        m = REGEX_PORT.search(x)
        if m :
            return '-p %d '%(int(m.group(1), 16))
        return ''
    
    def username(x) :
        m = REGEX_USERNAME.search(x)
        if m :
            return m.group(1) + '@'
        return ''
    
    parser = argparse.ArgumentParser(description='Tool to decrypt SSHv2 passwords in VanDyke Secure CRT session files')
    parser.add_argument('files', type=argparse.FileType('r'), nargs='+',
        help='session file(s)')
    
    args = parser.parse_args()
    
    for f in args.files :
        c = f.read().replace('\x00', '')
        print f.name
        print "ssh %s%s%s # %s"%(port(c), username(c), hostname(c), password(c))