Windows 10 WSLのKali Linuxにsshを追加といろいろ

先日､インストールしたWindows 10のWindows Subsystem for Linux(WSL)上で動作するKali Linuxにsshが無いので追加しました｡

Windows 10のWSLでKali Linuxを動作させてみる

sshのインストール

rootlinks@Win10:~$ apt-cache search ssh | grep ^ssh
ssh - secure shell client and server (metapackage)
ssh-agent-filter - filtering proxy for ssh-agent
ssh-askpass - under X, asks user for a passphrase for ssh-add
ssh-askpass-fullscreen - Under Gnome2, asks user for a passphrase for ssh-add
ssh-askpass-gnome - interactive X program to prompt users for a passphrase for ssh-add
ssh-audit - tool for ssh server auditing
ssh-contact - establish SSH connections to your IM contacts using Telepathy (metapackage)
ssh-contact-client - establish SSH connections to your IM contacts using Telepathy (client)
ssh-contact-service - establish SSH connections to your IM contacts using Telepathy (server)
ssh-cron - cron daemon allowing ssh keys with passphrases to be used
ssh-import-id - securely retrieve an SSH public key and install it locally
sshcommand - turn SSH into a thin client specifically for your command
sshfp - DNS SSHFP records generator
sshfs - filesystem client based on SSH File Transfer Protocol
sshguard - Protects from brute force attacks against ssh
sshpass - Non-interactive ssh password authentication
sshuttle - Transparent proxy server for VPN over SSH

rootlinks@Win10:~$ sudo apt-get install -y ssh
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  ncurses-term openssh-client openssh-server openssh-sftp-server
Suggested packages:
  keychain libpam-ssh monkeysphere ssh-askpass molly-guard rssh ufw
The following NEW packages will be installed:
  ncurses-term openssh-client openssh-server openssh-sftp-server ssh
0 upgraded, 5 newly installed, 0 to remove and 0 not upgraded.
Need to get 1,829 kB of archives.
After this operation, 9,722 kB of additional disk space will be used.
(snip)

rootlinks@Win10:~$ apt-cache search ssh | grep ^ssh

ssh - secure shell client and server (metapackage)

ssh-agent-filter - filtering proxy for ssh-agent

ssh-askpass - under X, asks user for a passphrase for ssh-add

ssh-askpass-fullscreen - Under Gnome2, asks user for a passphrase for ssh-add

ssh-askpass-gnome - interactive X program to prompt users for a passphrase for ssh-add

ssh-audit - tool for ssh server auditing

ssh-contact - establish SSH connections to your IM contacts using Telepathy (metapackage)

ssh-contact-client - establish SSH connections to your IM contacts using Telepathy (client)

ssh-contact-service - establish SSH connections to your IM contacts using Telepathy (server)

ssh-cron - cron daemon allowing ssh keys with passphrases to be used

ssh-import-id - securely retrieve an SSH public key and install it locally

sshcommand - turn SSH into a thin client specifically for your command

sshfp - DNS SSHFP records generator

sshfs - filesystem client based on SSH File Transfer Protocol

sshguard - Protects from brute force attacks against ssh

sshpass - Non-interactive ssh password authentication

sshuttle - Transparent proxy server for VPN over SSH

rootlinks@Win10:~$ sudo apt-get install -y ssh

Reading package lists... Done

Building dependency tree

Reading state information... Done

The following additional packages will be installed:

ncurses-term openssh-client openssh-server openssh-sftp-server

Suggested packages:

keychain libpam-ssh monkeysphere ssh-askpass molly-guard rssh ufw

The following NEW packages will be installed:

ncurses-term openssh-client openssh-server openssh-sftp-server ssh

0 upgraded, 5 newly installed, 0 to remove and 0 not upgraded.

Need to get 1,829 kB of archives.

After this operation, 9,722 kB of additional disk space will be used.

(snip)

sshクライアント

当たり前ですが､他のサーバに接続できました｡

rootlinks@Win10:~$ ssh -V
OpenSSH_7.6p1 Debian-4, OpenSSL 1.0.2n  7 Dec 2017

rootlinks@Win10:~$ ssh
usage: ssh [-46AaCfGgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]
           [-D [bind_address:]port] [-E log_file] [-e escape_char]
           [-F configfile] [-I pkcs11] [-i identity_file]
           [-J [user@]host[:port]] [-L address] [-l login_name] [-m mac_spec]
           [-O ctl_cmd] [-o option] [-p port] [-Q query_option] [-R address]
           [-S ctl_path] [-W host:port] [-w local_tun[:remote_tun]]
           [user@]hostname [command]

rootlinks@Win10:~$ ssh -V

OpenSSH_7.6p1 Debian-4, OpenSSL 1.0.2n 7 Dec 2017

rootlinks@Win10:~$ ssh

usage: ssh [-46AaCfGgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]

[-D [bind_address:]port] [-E log_file] [-e escape_char]

[-F configfile] [-I pkcs11] [-i identity_file]

[-J [user@]host[:port]] [-L address] [-l login_name] [-m mac_spec]

[-O ctl_cmd] [-o option] [-p port] [-Q query_option] [-R address]

[-S ctl_path] [-W host:port] [-w local_tun[:remote_tun]]

[user@]hostname [command]

sshサーバ

rootlinks@Win10:~$ cat /etc/ssh/sshd_config
#       $OpenBSD: sshd_config,v 1.101 2017/03/14 07:19:07 djm Exp $

# This is the sshd server system-wide configuration file.  See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented.  Uncommented options override the
# default value.

#Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key
#HostKey /etc/ssh/ssh_host_ed25519_key

# Ciphers and keying
#RekeyLimit default none

# Logging
#SyslogFacility AUTH
#LogLevel INFO

# Authentication:

#LoginGraceTime 2m
#PermitRootLogin prohibit-password
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10

#PubkeyAuthentication yes

# Expect .ssh/authorized_keys2 to be disregarded by default in future.
#AuthorizedKeysFile     .ssh/authorized_keys .ssh/authorized_keys2

#AuthorizedPrincipalsFile none

#AuthorizedKeysCommand none
#AuthorizedKeysCommandUser nobody

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes

# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no

# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
ChallengeResponseAuthentication no

# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no

# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no

# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication.  Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM yes

#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PermitTTY yes
PrintMotd no
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS no
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none

# no default banner path
#Banner none

# Allow client to pass locale environment variables
AcceptEnv LANG LC_*

# override default of no subsystems
Subsystem       sftp    /usr/lib/openssh/sftp-server

# Example of overriding settings on a per-user basis
#Match User anoncvs
#       X11Forwarding no
#       AllowTcpForwarding no
#       PermitTTY no
#       ForceCommand cvs server

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rootlinks@Win10:~$ cat /etc/ssh/sshd_config

# $OpenBSD: sshd_config,v 1.101 2017/03/14 07:19:07 djm Exp $

# This is the sshd server system-wide configuration file. See

# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin

# The strategy used for options in the default sshd_config shipped with

# OpenSSH is to specify options with their default value where

# possible, but leave them commented. Uncommented options override the

# default value.

#Port 22

#AddressFamily any

#ListenAddress 0.0.0.0

#ListenAddress ::

#HostKey /etc/ssh/ssh_host_rsa_key

#HostKey /etc/ssh/ssh_host_ecdsa_key

#HostKey /etc/ssh/ssh_host_ed25519_key

# Ciphers and keying

#RekeyLimit default none

# Logging

#SyslogFacility AUTH

#LogLevel INFO

# Authentication:

#LoginGraceTime 2m

#PermitRootLogin prohibit-password

#StrictModes yes

#MaxAuthTries 6

#MaxSessions 10

#PubkeyAuthentication yes

# Expect .ssh/authorized_keys2 to be disregarded by default in future.

#AuthorizedKeysFile .ssh/authorized_keys .ssh/authorized_keys2

#AuthorizedPrincipalsFile none

#AuthorizedKeysCommand none

#AuthorizedKeysCommandUser nobody

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts

#HostbasedAuthentication no

# Change to yes if you don't trust ~/.ssh/known_hosts for

# HostbasedAuthentication

#IgnoreUserKnownHosts no

# Don't read the user's ~/.rhosts and ~/.shosts files

#IgnoreRhosts yes

# To disable tunneled clear text passwords, change to no here!

#PasswordAuthentication yes

#PermitEmptyPasswords no

# Change to yes to enable challenge-response passwords (beware issues with

# some PAM modules and threads)

ChallengeResponseAuthentication no

# Kerberos options

#KerberosAuthentication no

#KerberosOrLocalPasswd yes

#KerberosTicketCleanup yes

#KerberosGetAFSToken no

# GSSAPI options

#GSSAPIAuthentication no

#GSSAPICleanupCredentials yes

#GSSAPIStrictAcceptorCheck yes

#GSSAPIKeyExchange no

# Set this to 'yes' to enable PAM authentication, account processing,

# and session processing. If this is enabled, PAM authentication will

# be allowed through the ChallengeResponseAuthentication and

# PasswordAuthentication. Depending on your PAM configuration,

# PAM authentication via ChallengeResponseAuthentication may bypass

# the setting of "PermitRootLogin without-password".

# If you just want the PAM account and session checks to run without

# PAM authentication, then enable this but set PasswordAuthentication

# and ChallengeResponseAuthentication to 'no'.

UsePAM yes

#AllowAgentForwarding yes

#AllowTcpForwarding yes

#GatewayPorts no

X11Forwarding yes

#X11DisplayOffset 10

#X11UseLocalhost yes

#PermitTTY yes

PrintMotd no

#PrintLastLog yes

#TCPKeepAlive yes

#UseLogin no

#PermitUserEnvironment no

#Compression delayed

#ClientAliveInterval 0

#ClientAliveCountMax 3

#UseDNS no

#PidFile /var/run/sshd.pid

#MaxStartups 10:30:100

#PermitTunnel no

#ChrootDirectory none

#VersionAddendum none

# no default banner path

#Banner none

# Allow client to pass locale environment variables

AcceptEnv LANG LC_*

# override default of no subsystems

Subsystem sftp /usr/lib/openssh/sftp-server

# Example of overriding settings on a per-user basis

#Match User anoncvs

# X11Forwarding no

# AllowTcpForwarding no

# PermitTTY no

# ForceCommand cvs server

起動してみます｡起動にはinitd経由でのスクリプトが用意されています｡

rootlinks@Win10:~$ sudo /etc/init.d/ssh start
[ ok ] Starting OpenBSD Secure Shell server: sshd.

rootlinks@Win10:~$ ps aux
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.0  0.0  10356   104 ?        Ss   10:19   0:00 /init
rootlin+     2  0.0  0.0  24408  1496 tty1     Ss   10:19   0:01 -bash
root      1677  0.0  0.0  79292   820 ?        Ss   11:16   0:00 /usr/sbin/sshd
rootlin+  1695  0.0  0.0  39720  1884 tty1     R    11:16   0:00 ps aux

rootlinks@Win10:~$ sudo /etc/init.d/ssh start

[ ok ] Starting OpenBSD Secure Shell server: sshd.

rootlinks@Win10:~$ ps aux

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND

root 1 0.0 0.0 10356 104 ? Ss 10:19 0:00 /init

rootlin+ 2 0.0 0.0 24408 1496 tty1 Ss 10:19 0:01 -bash

root 1677 0.0 0.0 79292 820 ? Ss 11:16 0:00 /usr/sbin/sshd

rootlin+ 1695 0.0 0.0 39720 1884 tty1 R 11:16 0:00 ps aux

ちなみにsystemd経由ではsystemdが起動されていないのでエラーになります｡

rootlinks@Win10:~$ systemctl list-unit-files --type=service | grep ssh
ssh.service                                disabled
ssh@.service                               static

rootlinks@Win10:~$ sudo systemctl start ssh
System has not been booted with systemd as init system (PID 1). Can't operate.

rootlinks@Win10:~$ systemctl list-unit-files --type=service | grep ssh

ssh.service disabled

ssh@.service static

rootlinks@Win10:~$ sudo systemctl start ssh

System has not been booted with systemd as init system (PID 1). Can't operate.

ローカルでsshサーバに接続

ローカルからsshサーバに接続してみます｡

rootlinks@Win10:~$ ssh rootlinks@localhost
The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is SHA256:030Sshosdflksjidrklwfsfosadifsadkfjv.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'localhost' (ECDSA) to the list of known hosts.
rootlinks@localhost's password:

The programs included with the Kali GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Kali GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
rootlinks@Win10:~$ exit
logout
Connection to localhost closed.

rootlinks@Win10:~$ ssh rootlinks@localhost

The authenticity of host 'localhost (127.0.0.1)' can't be established.

ECDSA key fingerprint is SHA256:030Sshosdflksjidrklwfsfosadifsadkfjv.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'localhost' (ECDSA) to the list of known hosts.

rootlinks@localhost's password:

The programs included with the Kali GNU/Linux system are free software;

the exact distribution terms for each program are described in the

individual files in /usr/share/doc/*/copyright.

Kali GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent

permitted by applicable law.

rootlinks@Win10:~$ exit

logout

Connection to localhost closed.

リモートからsshサーバに接続

他のWindowsパソコンからKali Linuxにssh接続してみます｡
Windows Firewallが有効な場合はポート22への接続を許可するルールを追加して下さい｡

Kali LinuxにTeraTermで接続してみます｡

rootのパスワード設定

デフォルトではrootのパスワードはtoorの設定なのですが､エラーになりました｡
Kali Linux Default Passwords
https://docs.kali.org/introduction/kali-linux-default-passwords

どちらにしろ変更は必要なので変更しました｡

rootlinks@Win10:~$ su -
Password:
su: Authentication failure
rootlinks@Win10:~$ sudo passwd root
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
rootlinks@Win10:~$ su -
Password:
root@Win10:~#

rootlinks@Win10:~$ su -

Password:

su: Authentication failure

rootlinks@Win10:~$ sudo passwd root

Enter new UNIX password:

Retype new UNIX password:

passwd: password updated successfully

rootlinks@Win10:~$ su -

Password:

root@Win10:~#

ipコマンドがエラー

ipコマンドがエラーになります｡

rootlinks@Win10:~$ ip addr
DONE truncated
Dump terminated

rootlinks@Win10:~$ ip addr

DONE truncated

Dump terminated

代わりにifconfigなど使いそうなプログラムをインストールしました｡

rootlinks@Win10:~$ sudo apt-get install -y file curl git net-tools

rootlinks@Win10:~$ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.1  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 2408:212:d01:b100:103d:4454:549a:596b  prefixlen 64  scopeid 0x0<global>
        inet6 2408:212:d01:b100:257d:4b7:8ac3:8842  prefixlen 128  scopeid 0x0<global>
        inet6 fe80::103d:4454:549a:596c  prefixlen 64  scopeid 0xfd<compat,link,site,host>
        ether 00:0c:28:bc:0a:54  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 1500
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x0<global>
        loop  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

rootlinks@Win10:~$ sudo apt-get install -y file curl git net-tools

rootlinks@Win10:~$ ifconfig

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500

inet 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255

inet6 2408:212:d01:b100:103d:4454:549a:596b prefixlen 64 scopeid 0x0<global>

inet6 2408:212:d01:b100:257d:4b7:8ac3:8842 prefixlen 128 scopeid 0x0<global>

inet6 fe80::103d:4454:549a:596c prefixlen 64 scopeid 0xfd<compat,link,site,host>

ether 00:0c:28:bc:0a:54 (Ethernet)

RX packets 0 bytes 0 (0.0 B)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 0 bytes 0 (0.0 B)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 1500

inet 127.0.0.1 netmask 255.0.0.0

inet6 ::1 prefixlen 128 scopeid 0x0<global>

loop (Local Loopback)

RX packets 0 bytes 0 (0.0 B)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 0 bytes 0 (0.0 B)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RootLinks Co., Ltd.

Windows 10 WSLのKali Linuxにsshを追加といろいろ

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Windows 10 WSLのKali Linuxにsshを追加といろいろ

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