Bagaimana cara mengekstrak kata sandi yang disimpan dari Remmina?

Saya tidak ingat kata sandi saya untuk salah satu server saya. Saya memiliki koneksi yang berfungsi disimpan dan ingin mendapatkan kata sandi dari itu

Dari Remmina faq:

T: Bagaimana kata sandi saya disimpan? Apakah mereka aman?
A: Mereka dienkripsi menggunakan 3DES dengan kunci 256bit yang dibuat secara acak. Anda harus menjaga kunci Anda tetap aman.

Jadi di mana saya mendapatkan kunci dan di mana kata sandi disimpan?

EDIT: Ok menemukan bahwa mereka hanya ada di folder beranda pengguna Anda di bawah .remmina. kedua kunci pribadi ada di base64 dan sepertinya saya tidak bisa mendapatkan kata sandi dengan benar ketika mendekripsi ......

Saya dapat menggunakan solusi Go oleh @michaelcochez untuk mendekripsi dengan Python:

import base64
from Crypto.Cipher import DES3

secret = base64.decodestring('<STRING FROM remmina.prefs>')
password = base64.decodestring('<STRING FROM XXXXXXX.remmina>')

print DES3.new(secret[:24], DES3.MODE_CBC, secret[24:]).decrypt(password)

Saya menemukan kunci dalam file yang dipanggil ~/.remmina/remmina.prefsdan kata sandi terenkripsi berada di ~/.remmina/nnnnnnnnnnn.remmina.

Saya menulis kode (dalam Go) yang dapat digunakan untuk dekripsi:

//Decrypts obfuscated passwords by Remmina - The GTK+ Remote Desktop Client
//written by Michael Cochez
package main

import (
    "crypto/cipher"
    "crypto/des"
    "encoding/base64"
    "fmt"
    "log"
)

//set the variables here

var base64secret = "yoursecret"
var base64password = "theconnectionpassword"

//The secret is used for encrypting the passwords. This can typically be found from ~/.remmina/remmina.pref on the line containing 'secret='.
//"The encrypted password used for the connection. This can typically be found from /.remmina/dddddddddddd.remmina " on the line containing 'password='.
//Copy everything after the '=' sign. Also include final '=' signs if they happen to be there.

//returns a function which can be used for decrypting passwords
func makeRemminaDecrypter(base64secret string) func(string) string {
    //decode the secret
    secret, err := base64.StdEncoding.DecodeString(base64secret)
    if err != nil {
        log.Fatal("Base 64 decoding failed:", err)
    }
    if len(secret) != 32 {
        log.Fatal("the secret is not 32 bytes long")
    }
    //the key is the 24 first bits of the secret
    key := secret[:24]
    //3DES cipher
    block, err := des.NewTripleDESCipher(key)
    if err != nil {
        log.Fatal("Failed creating the 3Des cipher block", err)
    }
    //the rest of the secret is the iv
    iv := secret[24:]
    decrypter := cipher.NewCBCDecrypter(block, iv)

    return func(encodedEncryptedPassword string) string {
        encryptedPassword, err := base64.StdEncoding.DecodeString(encodedEncryptedPassword)
        if err != nil {
            log.Fatal("Base 64 decoding failed:", err)
        }
        //in place decryption
        decrypter.CryptBlocks(encryptedPassword, encryptedPassword)
        return string(encryptedPassword)
    }
}

func main() {

    if base64secret == "yoursecret" || base64password == "theconnectionpassword" {

        log.Fatal("both base64secret and base64password variables must be set")
    }

    decrypter := makeRemminaDecrypter(base64secret)

    fmt.Printf("Passwd : %v\n", decrypter(base64password))

}

Kode dapat dijalankan secara online, tetapi kemudian Anda mempercayai golang.org.

Mereka disimpan di Gnome-Keyring.

Dash-> ketik "kunci" -> Kata Sandi & Kunci.

Dalam versi kuda laut yang lebih baru (alias "Kata Sandi dan Kunci") kita harus memilih "Lihat" -> "Tampilkan" untuk melihat kunci. Cari "remmina".

Saya membuat skrip yang secara otomatis mendekripsi file kata sandi Anda. Versi terbaru ada di https://github.com/peppelinux/remmina_password_exposer .

#!/usr/bin/python
from Crypto.Cipher import DES3
import base64
import os
import re

from os.path import expanduser
home = expanduser("~")

# costanti :)
REMMINA_FOLDER = os.getenv('REMMINA_FOLDER', home+'/'+'.remmina/')
REMMINA_PREF   = 'remmina.pref'

REGEXP_ACCOUNTS = r'[0-9]{13}\.remmina(.swp)?'
REGEXP_PREF     = r'remmina.pref'

diz = {}

fs = open(REMMINA_FOLDER+REMMINA_PREF)
fso = fs.readlines()
fs.close()

for i in fso:
    if re.findall(r'secret=', i):
        r_secret = i[len(r'secret='):][:-1]
        print 'found secret', r_secret

for f in os.listdir(REMMINA_FOLDER):
    if re.findall(REGEXP_ACCOUNTS, f): 

        o = open( REMMINA_FOLDER+f, 'r')
        fo = o.readlines()
        o.close()

        for i in fo:
            if re.findall(r'password=', i):
                r_password = i[len(r'password='):][:-1]
            if re.findall(r'^name=', i):
                r_name = i.split('=')[1][:-1]
            if re.findall(r'username=', i):
                r_username = i.split('=')[1][:-1]
        #~ print fo
        #~ print 'found', f

        password = base64.decodestring(r_password)
        secret = base64.decodestring(r_secret)

        diz[r_name] = DES3.new(secret[:24], DES3.MODE_CBC, secret[24:]).decrypt(password)
        # print the username and password of the last decryption
        print r_name, r_username, diz[r_name]

Saya membuat skrip perl untuk menerjemahkan sandi remmina. Ekstrak kunci Anda dan decode semua kata sandi Anda yang disimpan (secara lokal).

https://github.com/lepe/scripts/blob/master/decode_remmina.pl (periksa versi yang diperbarui)

#!/usr/bin/perl

use strict;
use warnings;
use Crypt::CBC; #Crypt::DES_EDE3
use MIME::Base64;
use File::Slurp;

my $remmina_dir = $ENV{"HOME"} . "/.remmina";
my $remmina_cfg = $remmina_dir . "/remmina.pref";

my $content = read_file($remmina_cfg);
if($content) {
    my ($secret) = $content =~ /^secret=(.*)/m;
    if($secret) {
        my $secret_bin = decode_base64($secret);
        my ($key, $iv) = ( $secret_bin =~ /.{0,24}/gs );
        my @files = <$remmina_dir/*.remmina>;

        my $des = Crypt::CBC->new( 
                -cipher=>'DES_EDE3', 
                -key=>$key, 
                -iv=>$iv,
                -header=>'none', 
                -literal_key=>1,
                -padding=>'null'
        ); 
        if(@files > 0) {
            foreach my $file (@files) {
                my $config = read_file($file);
                my ($password) = $config =~ /^password=(.*)/m;
                my ($name) = $config =~ /^name=(.*)/m;
                my ($host) = $config =~ /^server=(.*)/m;
                my ($user) = $config =~ /^username=(.*)/m;
                my $pass_bin = decode_base64($password);
                my $pass_plain = $des->decrypt( $pass_bin );
                if($pass_plain) {
                    print "$name    $host   $user   $pass_plain\n";
                }
            }
        } else {
            print "Unable to find *.remmina files \n";
        }
    } else {
        print "No secret key found...\n";
    }
} else {
    print "Unable to read content from remmina.pref\n";
}

Anda akan perlu menginstal paket ini (misalnya, menggunakan cpan <PACKAGE>): Crypt::CBC, Crypt::DES_EDE3, MIME::Base64,File::Slurp

Output sampel:

(Nama, host, pengguna, kata sandi: dipisahkan tab)

Server1 192.168.1.25    administrator   jM822Azss2fake
Server2 192.168.1.88:2899   admin   JaxHaxFakez90

Saya perlu melakukan sebaliknya dan mengenkripsi kata sandi untuk Remmina menggunakan skrip Python. Jika ada yang membutuhkannya, inilah kodenya:

import base64    
from Crypto.Cipher import DES3

REMMINAPREF_SECRET_B64=b'G5XKhImmX+3MaRAWU920B31AtQLDcWEq+Geq4L+7sES='

def encryptRemminaPass(plain):
    plain = plain.encode('utf-8')
    secret = base64.b64decode(REMMINAPREF_SECRET_B64)
    key = secret[:24]
    iv = secret[24:]
    plain = plain + b"\0" * (8 - len(plain) % 8)
    cipher = DES3.new(key, DES3.MODE_CBC, iv)
    result = cipher.encrypt(plain)
    result = base64.b64encode(result)
    result = result.decode('utf-8')
    return result