#!/usr/bin/env python
# -*- coding: utf-8 -*-
import pytest, os
class TestSSH2(object):
@pytest.fixture(autouse=True)
def init(self, ssh_audit):
self.ssh = ssh_audit.SSH
self.ssh2 = ssh_audit.SSH2
self.rbuf = ssh_audit.ReadBuf
self.wbuf = ssh_audit.WriteBuf
def _kex_payload(self):
w = self.wbuf()
w.write(b'\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff')
w.write_list([u'curve25519-sha256@libssh.org', u'ecdh-sha2-nistp256', u'ecdh-sha2-nistp384', u'ecdh-sha2-nistp521', u'diffie-hellman-group-exchange-sha256', u'diffie-hellman-group14-sha1'])
w.write_list([u'ssh-rsa', u'rsa-sha2-512', u'rsa-sha2-256', u'ssh-ed25519'])
w.write_list([u'chacha20-poly1305@openssh.com', u'aes128-ctr', u'aes192-ctr', u'aes256-ctr', u'aes128-gcm@openssh.com', u'aes256-gcm@openssh.com', u'aes128-cbc', u'aes192-cbc', u'aes256-cbc'])
w.write_list([u'chacha20-poly1305@openssh.com', u'aes128-ctr', u'aes192-ctr', u'aes256-ctr', u'aes128-gcm@openssh.com', u'aes256-gcm@openssh.com', u'aes128-cbc', u'aes192-cbc', u'aes256-cbc'])
w.write_list([u'umac-64-etm@openssh.com', u'umac-128-etm@openssh.com', u'hmac-sha2-256-etm@openssh.com', u'hmac-sha2-512-etm@openssh.com', u'hmac-sha1-etm@openssh.com', u'umac-64@openssh.com', u'umac-128@openssh.com', u'hmac-sha2-256', u'hmac-sha2-512', u'hmac-sha1'])
w.write_list([u'umac-64-etm@openssh.com', u'umac-128-etm@openssh.com', u'hmac-sha2-256-etm@openssh.com', u'hmac-sha2-512-etm@openssh.com', u'hmac-sha1-etm@openssh.com', u'umac-64@openssh.com', u'umac-128@openssh.com', u'hmac-sha2-256', u'hmac-sha2-512', u'hmac-sha1'])
w.write_list([u'none', u'zlib@openssh.com'])
w.write_list([u'none', u'zlib@openssh.com'])
w.write_list([u''])
w.write_list([u''])
w.write_byte(False)
w.write_int(0)
return w.write_flush()
def test_kex_read(self):
kex = self.ssh2.Kex.parse(self._kex_payload())
assert kex is not None
assert kex.cookie == b'\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff'
assert kex.kex_algorithms == [u'curve25519-sha256@libssh.org', u'ecdh-sha2-nistp256', u'ecdh-sha2-nistp384', u'ecdh-sha2-nistp521', u'diffie-hellman-group-exchange-sha256', u'diffie-hellman-group14-sha1']
assert kex.key_algorithms == [u'ssh-rsa', u'rsa-sha2-512', u'rsa-sha2-256', u'ssh-ed25519']
assert kex.client is not None
assert kex.server is not None
assert kex.client.encryption == [u'chacha20-poly1305@openssh.com', u'aes128-ctr', u'aes192-ctr', u'aes256-ctr', u'aes128-gcm@openssh.com', u'aes256-gcm@openssh.com', u'aes128-cbc', u'aes192-cbc', u'aes256-cbc']
assert kex.server.encryption == [u'chacha20-poly1305@openssh.com', u'aes128-ctr', u'aes192-ctr', u'aes256-ctr', u'aes128-gcm@openssh.com', u'aes256-gcm@openssh.com', u'aes128-cbc', u'aes192-cbc', u'aes256-cbc']
assert kex.client.mac == [u'umac-64-etm@openssh.com', u'umac-128-etm@openssh.com', u'hmac-sha2-256-etm@openssh.com', u'hmac-sha2-512-etm@openssh.com', u'hmac-sha1-etm@openssh.com', u'umac-64@openssh.com', u'umac-128@openssh.com', u'hmac-sha2-256', u'hmac-sha2-512', u'hmac-sha1']
assert kex.server.mac == [u'umac-64-etm@openssh.com', u'umac-128-etm@openssh.com', u'hmac-sha2-256-etm@openssh.com', u'hmac-sha2-512-etm@openssh.com', u'hmac-sha1-etm@openssh.com', u'umac-64@openssh.com', u'umac-128@openssh.com', u'hmac-sha2-256', u'hmac-sha2-512', u'hmac-sha1']
assert kex.client.compression == [u'none', u'zlib@openssh.com']
assert kex.server.compression == [u'none', u'zlib@openssh.com']
assert kex.client.languages == [u'']
assert kex.server.languages == [u'']
assert kex.follows is False
assert kex.unused == 0
def _get_empty_kex(self, cookie=None):
kex_algs, key_algs = [], []
enc, mac, compression, languages = [], [], ['none'], []
cli = self.ssh2.KexParty(enc, mac, compression, languages)
enc, mac, compression, languages = [], [], ['none'], []
srv = self.ssh2.KexParty(enc, mac, compression, languages)
if cookie is None:
cookie = os.urandom(16)
kex = self.ssh2.Kex(cookie, kex_algs, key_algs, cli, srv, 0)
return kex
def _get_kex_variat1(self):
cookie = b'\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff'
kex = self._get_empty_kex(cookie)
kex.kex_algorithms.append('curve25519-sha256@libssh.org')
kex.kex_algorithms.append('ecdh-sha2-nistp256')
kex.kex_algorithms.append('ecdh-sha2-nistp384')
kex.kex_algorithms.append('ecdh-sha2-nistp521')
kex.kex_algorithms.append('diffie-hellman-group-exchange-sha256')
kex.kex_algorithms.append('diffie-hellman-group14-sha1')
kex.key_algorithms.append('ssh-rsa')
kex.key_algorithms.append('rsa-sha2-512')
kex.key_algorithms.append('rsa-sha2-256')
kex.key_algorithms.append('ssh-ed25519')
kex.server.encryption.append('chacha20-poly1305@openssh.com')
kex.server.encryption.append('aes128-ctr')
kex.server.encryption.append('aes192-ctr')
kex.server.encryption.append('aes256-ctr')
kex.server.encryption.append('aes128-gcm@openssh.com')
kex.server.encryption.append('aes256-gcm@openssh.com')
kex.server.encryption.append('aes128-cbc')
kex.server.encryption.append('aes192-cbc')
kex.server.encryption.append('aes256-cbc')
kex.server.mac.append('umac-64-etm@openssh.com')
kex.server.mac.append('umac-128-etm@openssh.com')
kex.server.mac.append('hmac-sha2-256-etm@openssh.com')
kex.server.mac.append('hmac-sha2-512-etm@openssh.com')
kex.server.mac.append('hmac-sha1-etm@openssh.com')
kex.server.mac.append('umac-64@openssh.com')
kex.server.mac.append('umac-128@openssh.com')
kex.server.mac.append('hmac-sha2-256')
kex.server.mac.append('hmac-sha2-512')
kex.server.mac.append('hmac-sha1')
kex.server.compression.append('zlib@openssh.com')
for a in kex.server.encryption:
kex.client.encryption.append(a)
for a in kex.server.mac:
kex.client.mac.append(a)
for a in kex.server.compression:
if a == 'none':
continue
kex.client.compression.append(a)
return kex
def test_key_payload(self):
kex1 = self._get_kex_variat1()
kex2 = self.ssh2.Kex.parse(self._kex_payload())
assert kex1.payload == kex2.payload