How to extract saved password from Remmina?
Solution 1:
I was able to use the Go solution by @michaelcochez to decrypt it with 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)
Solution 2:
They are stored in Gnome-Keyring.
Dash->type "keys"->Passwords&Keys.
In newer versions of seahorse (a.k.a. "Passwords and Keys") one has to select "View" -> "Show any" to see the keys. Search for "remmina".
Solution 3:
I found the key in a file called ~/.remmina/remmina.prefs
and the encrypted passwords are in ~/.remmina/nnnnnnnnnnn.remmina
.
I wrote a code (in Go) which can be used for decryption:
//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))
}
The code can be run online, but then you are trusting golang.org.
Solution 4:
I made a script that automatically decrypt your password files. The most recent version is at 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]
Solution 5:
Remmina (1.3.3) store passwords thanks to libsecret
, the libsecret-tools
package can help you retrieve the stored password.
I was looking for the password of a Windows RDP connection with user password saved; I finnaly found the password with the command
secret-tool search key password