def get_vnc_hash(password):
passpadd = (password + '\x00' * 8)[:8]
strkey = ''.join([chr(x) for x in d.vnckey])
ekey = d.deskey(strkey, False)
hashed = d.desfunc(passpadd, ekey)
return hashed.encode('hex')
def get_vnc_enc(password):
import d3des
passpadd = (password + '\x00' * 8)[:8]
strkey = ''.join([chr(x) for x in d3des.vnckey])
ekey = d3des.deskey(strkey, False)
ctext = d3des.desfunc(passpadd, ekey)
return ctext.encode('hex')
def get_vnc_hash(password):
'''
Given a password, return a UltraVNC compatible hash from its first
eight chars.
Arguments:
password
Returns:
hash string.
Requires:
d3des module to be available.
http://vnc2flv.googlecode.com/svn-history/r2/trunk/vnc2flv/vnc2flv/d3des.py
'''
hashstr = None
try:
import d3des as d
except ImportError:
_log.warn(
'Hash algorithm module not found, skipping VNC password set.')
else:
passpadd = (password + '\x00' * 8)[:8]
strkey = ''.join([chr(x) for x in d.vnckey])
ekey = d.deskey(strkey, False)
hashed = d.desfunc(passpadd, ekey)
hashstr = hashed.encode('hex')
_log.info('VNC password hash: ' + hashstr)
return hashstr
def get_vnc_hash(password):
passpadd = (password + "\x00" * 8)[:8]
strkey = "".join([chr(x) for x in d.vnckey])
ekey = d.deskey(strkey, False)
hashed = d.desfunc(passpadd, ekey)
return hashed.encode("hex")
def get_vnc_hash(password):
'''
Given a password, return a UltraVNC compatible hash from its first
eight chars.
Arguments:
password
Returns:
hash string.
Requires:
d3des module to be available.
http://vnc2flv.googlecode.com/svn-history/r2/trunk/vnc2flv/vnc2flv/d3des.py
'''
hashstr = None
try:
import d3des as d
except ImportError:
_log.warn('Hash algorithm module not found, skipping VNC password set.')
else:
passpadd = (password + '\x00'*8)[:8]
strkey = ''.join([ chr(x) for x in d.vnckey ])
ekey = d.deskey(strkey, False)
hashed = d.desfunc(passpadd, ekey)
hashstr = hashed.encode('hex')
_log.info('VNC password hash: ' + hashstr)
return hashstr
def encode_password(password):
if not isinstance(password, bytes):
raise ValueError('Password should be passed as bytes')
passpadd = (password + b'\x00' * 8)[:8]
strkey = bytes(d3des.vnckey)
ekey = d3des.deskey(strkey, False)
ctext = d3des.desfunc(passpadd, ekey)
return ctext
def apply_vncpasswd_configuration(item, value, root_path):
file = item.get("file")
if not file: return
check_pathelement_security(file)
ek = d3des.deskey(pack('8B', *d3des.vnckey), False)
encrypted = d3des.desfunc((value + '\x00' * 8)[:8], ek)
target_file = "%s/%s" % (root_path, file)
with open(target_file, "w") as vncpasswd:
vncpasswd.write(encrypted)
os.chmod(target_file, stat.S_IRUSR | stat.S_IWUSR)
def apply_vncpasswd_configuration(item, value, root_path):
file = item.get("file")
if not file:
return
check_pathelement_security(file)
ek = d3des.deskey(pack("8B", *d3des.vnckey), False)
encrypted = d3des.desfunc((value + "\x00" * 8)[:8], ek)
target_file = "%s/%s" % (root_path, file)
with open(target_file, "w") as vncpasswd:
vncpasswd.write(encrypted)
os.chmod(target_file, stat.S_IRUSR | stat.S_IWUSR)
def vnc_crypt(vncpass, decrypt=False):
if decrypt:
try:
passpadd = vncpass.decode("hex")
except TypeError as e:
if e.message == "Odd-length string":
module_logger.warning('WARN: %s . Chopping last char off... "%s"' % (e.message, vncpass[:-1]))
passpadd = vncpass[:-1].decode("hex")
else:
raise
else:
passpadd = (vncpass + "\x00" * 8)[:8]
strkey = "".join([chr(x) for x in d3des.vnckey])
key = d3des.deskey(strkey, decrypt)
crypted = d3des.desfunc(passpadd, key)
if decrypt:
return crypted.encode("hex").decode("hex")
else:
return crypted.encode("hex")
def obfuscate(self):
"""Obfuscate a plaintext password in VNC format"""
password = self
# pad password up to 8 chars, truncate anything over 8
passpadd = (password + '\x00' * 8)[:8]
# load the vnckey from library and change encoding to ascii
strkey = ''.join([chr(x) for x in d3des.vnckey])
ekey = d3des.deskey(bytearray(strkey, encoding="ascii"), False)
# encrypt the passpadd section from above
ctext = d3des.desfunc(bytearray(passpadd, encoding="ascii"), ekey)
# if the password was longer than 8 chars, then recurse, this will chunk the
# password into 8 character obfuscated sections. versions older than 5 will ignore 8+
# this method is used by RealVNC but most other implementations truncate at 8
# if len(password) > 8:
# ctext += self.obfuscate(password[8:])
return ctext
def vnc_crypt(vncpass, decrypt=False):
if (decrypt):
try:
passpadd = vncpass.decode('hex')
except TypeError as e:
if e.message == 'Odd-length string':
module_logger.warning(
'WARN: %s . Chopping last char off... "%s"' %
(e.message, vncpass[:-1]))
passpadd = vncpass[:-1].decode('hex')
else:
raise
else:
passpadd = (vncpass + '\x00' * 8)[:8]
strkey = ''.join([chr(x) for x in d3des.vnckey])
key = d3des.deskey(strkey, decrypt)
crypted = d3des.desfunc(passpadd, key)
if (decrypt):
return crypted.encode('hex').decode('hex')
else:
return crypted.encode('hex')
def do_crypt(password, decrypt):
passpadd = (password + '\x00'*8)[:8]
strkey = ''.join([ chr(x) for x in d.vnckey ])
key = d.deskey(strkey, decrypt)
crypted = d.desfunc(passpadd, key)
return crypted
def do_crypt(self, password, decrypt):
passpadd = (password + '\x00' * 8)[:8]
strkey = ''.join([chr(x) for x in self.vnckey])
key = d.deskey(strkey, decrypt)
crypted = d.desfunc(passpadd, key)
return crypted
def get_vnc_enc(password):
passpadd = (password + '\x00' * 8)[:8]
strkey = ''.join([chr(x) for x in d.vnckey])
ekey = d.deskey(strkey, False)
ctext = d.desfunc(passpadd, ekey)
return ctext
