#kali

How to enable sending scheduled email from OpenVAS on Kali ?

On default install of OpenVAS on Kali, email from scheduled tasks does not get sent. Here is the process of 2 steps on how to fix that.

There are 2 issues required to be solved with OpenVAS + Kali.

Versions used at this client:

root@kali:~# uname -a
Linux kali 4.13.0-kali1-amd64 #1 SMP Debian 4.13.10-1kali1 (2017-11-03) x86_64 GNU/Linux

root@kali:~# apt show openvas* | egrep "Package|Version"
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
Package: openvas
Version: 9~kali3
APT-Sources: http://http.kali.org/kali kali-rolling/main amd64 Packages
Package: openvas-manager
Version: 7.0.2-1
APT-Sources: http://http.kali.org/kali kali-rolling/main amd64 Packages
Package: openvas-scanner
Version: 5.1.1-2kali1
APT-Sources: http://http.kali.org/kali kali-rolling/main amd64 Packages
Package: openvas-cli
Version: 1.4.5-1+b1
APT-Sources: http://http.kali.org/kali kali-rolling/main amd64 Packages
Package: openvas-manager-common
Version: 7.0.2-1
APT-Sources: http://http.kali.org/kali kali-rolling/main amd64 Packages
Package: openvas-nasl
Version: 9.0.1-4
APT-Sources: http://http.kali.org/kali kali-rolling/main amd64 Packages
Package: openvas-scanner-dbgsym
Version: 5.1.1-2kali1
Auto-Built-Package: debug-symbols
APT-Sources: http://http.kali.org/kali kali-rolling/main amd64 Packages
Package: openvas-administrator
Package: openvas-plugins
Package: openvas-server
Package: openvas-client

1) ISSUE 1 - unable to send email from kali

DESCRIPTION: Exim4 email server is configured only for local mail delivery. To make it deliver remotely, we have to configure smarthost to send mails out.

For smarthost, I used SMTP server that answers on port 587. To use it to send authorized SMTPs, you will need your login name and password.

To monitor sending email, we will look file /var/log/exim4/mainlog:

tail -f /var/log/exim4/mainlog

PROCES SHORT DESCRIPTION: (longer example below)

To reconfigure exim4 MTA, we will do next steps:

Step 1. Run exim4 configuration script:

dpkg-reconfigure exim4-config

Select 'mail sent by smarthost; no local mail' (in the middle of menu).
system mail name: openvas
IP-addresses to listen on for incoming SMTP connections: 127.0.0.1 ; ::1
Other destinations for which mail is accepted: localhost.loaldomain
Visible domain name for local users: from.openvas.server.nedzadhrnjica.com
IP address or host name of the outgoing smarthost: mailserver.nedzadhrnjica.com::587
Keep number of DNS-queries minimal (Dial-on-Demand): No
Split configuration into small files? No

To save/reconfigure exim with data we entered, start:

update-exim4.conf

Step 2. Edit file to configure your outgoing SMTP username:password

vi passwd.client

Screenshot of actual session (testing failed):

root@kali:/etc/exim4# date
Sri Nov 15 23:21:29 EST 2017

root@kali:/etc/exim4# echo "test1" | mail -s "test1 subject" nhrnjica@gmail.com

root@kali:/etc/exim4# tail /var/log/exim4/mainlog
2017-11-15 23:21:39 1eFBgJ-0006B1-IF <= root@kali U=root P=local S=339
2017-11-15 23:21:39 1eFBgJ-0006B1-IF ** nhrnjica@gmail.com R=nonlocal: Mailing to remote domains not supported
2017-11-15 23:21:39 1eFBgJ-0006B3-Jh <= <> R=1eFBgJ-0006B1-IF U=Debian-exim P=local S=1492
2017-11-15 23:21:39 1eFBgJ-0006B1-IF Completed
2017-11-15 23:21:39 1eFBgJ-0006B3-Jh ** nedzad@nedzadhrnjica.com <root@kali> R=nonlocal: Mailing to remote domains not supported
2017-11-15 23:21:39 1eFBgJ-0006B3-Jh Frozen (delivery error message)

root@kali:/etc/exim4# cd /etc/exim4

root@kali:/etc/exim4# ls -l
total 92
drwxr-xr-x 9 root root  4096 Nov  7 14:43 conf.d
-rw-r--r-- 1 root root 78843 Mar  9  2017 exim4.conf.template
-rw-r--r-- 1 root root   204 Nov 15 23:21 passwd.client
-rw-r--r-- 1 root root  1043 Nov 15 23:15 update-exim4.conf.conf

root@kali:/etc/exim4# cat passwd.client
# password file used when the local exim is authenticating to a remote
# host as a client.
#
# see exim4_passwd_client(5) for more documentation
#
# Example:
### target.mail.server.example:login:password

Screenshot of actual session (fixing things up):

root@kali:/etc/exim4# cd /etc/exim4

root@kali:/etc/exim4# echo 'mailserver.nedzadhrnjica.com:mail@nedzadhrnjica.com:SomePassword5231#!' >> passwd.client

root@kali:/etc/exim4# cat passwd.client
# password file used when the local exim is authenticating to a remote
# host as a client.
#
# see exim4_passwd_client(5) for more documentation
#
# Example:
### target.mail.server.example:login:password
mailserver.nedzadhrnjica.com:mail@nedzadhrnjica.com:SomePassword5231#!

root@kali:/etc/exim4# cat update-exim4.conf.conf
# /etc/exim4/update-exim4.conf.conf
#
# Edit this file and /etc/mailname by hand and execute update-exim4.conf
# yourself or use 'dpkg-reconfigure exim4-config'
#
# Please note that this is _not_ a dpkg-conffile and that automatic changes
# to this file might happen. The code handling this will honor your local
# changes, so this is usually fine, but will break local schemes that mess
# around with multiple versions of the file.
#
# update-exim4.conf uses this file to determine variable values to generate
# exim configuration macros for the configuration file.
#
# Most settings found in here do have corresponding questions in the
# Debconf configuration, but not all of them.
#
# This is a Debian specific file

dc_eximconfig_configtype='local'
dc_other_hostnames='localhost.localdomain'
dc_local_interfaces='127.0.0.1 ; ::1'
dc_readhost=''
dc_relay_domains=''
dc_minimaldns='false'
dc_relay_nets=''
dc_smarthost=''
CFILEMODE='644'
dc_use_split_config='false'
dc_hide_mailname=''
dc_mailname_in_oh='true'
dc_localdelivery='mail_spool'

root@kali:/etc/exim4# dpkg-reconfigure exim4-config

root@kali:/etc/exim4#cat update-exim4.conf.confg
# /etc/exim4/update-exim4.conf.conf
#
# Edit this file and /etc/mailname by hand and execute update-exim4.conf
# yourself or use 'dpkg-reconfigure exim4-config'
#
# Please note that this is _not_ a dpkg-conffile and that automatic changes
# to this file might happen. The code handling this will honor your local
# changes, so this is usually fine, but will break local schemes that mess
# around with multiple versions of the file.
#
# update-exim4.conf uses this file to determine variable values to generate
# exim configuration macros for the configuration file.
#
# Most settings found in here do have corresponding questions in the
# Debconf configuration, but not all of them.
#
# This is a Debian specific file

dc_eximconfig_configtype='satellite'
dc_other_hostnames='localhost.localdomain'
dc_local_interfaces='127.0.0.1 ; ::1'
dc_readhost='from.openvas.server.nedzadhrnjica.com'
dc_relay_domains=''
dc_minimaldns='false'
dc_relay_nets=''
dc_smarthost='mailserver.nedzadhrnjica.com::587'
CFILEMODE='644'
dc_use_split_config='false'
dc_hide_mailname='true'
dc_mailname_in_oh='true'
dc_localdelivery='mail_spool'

Screenshot of actual session (successful delivery):

root@kali:/etc/exim4# echo "test2" | mail -s "test2 subject" nhrnjica@gmail.com

root@kali:/etc/exim4# tail /var/log/exim4/mainlog
2017-11-15 23:23:53 1eFB45-0005C1-1B Message is frozen
2017-11-15 23:23:53 1eFBbV-00060t-P5 Message is frozen
2017-11-15 23:23:53 1eFB2L-0005AY-K1 Message is frozen
2017-11-15 23:23:53 1eFB2L-0005Ah-UI Message is frozen
2017-11-15 23:23:53 1eFB2M-0005Aw-AK Message is frozen
2017-11-15 23:23:53 1eFB2M-0005At-80 Message is frozen
2017-11-15 23:23:53 End queue run: pid=24477
2017-11-15 23:24:28 1eFBj2-0006NH-Ju <= root@kali U=root P=local S=339
2017-11-15 23:24:35 1eFBj2-0006NH-Ju => nhrnjica@gmail.com R=smarthost T=remote_smtp_smarthost H=mailserver.nedzadhrnjica.com [107.170.103.28] X=TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256 CV=no DN="C=XY,ST=unknown,L=unknown,O=QSMTPD,OU=Server,CN=mailserver.nedzadhrnjica.com,EMAIL=postmaster@mailserver.nedzadhrnjica.com" A=cram_md5 C="250 Queued! 1510806275 qp 25674 <E1eFBj2-0006NH-Ju@kali>"
2017-11-15 23:24:35 1eFBj2-0006NH-Ju Completed

root@kali:/etc/exim4#

There you are!

2) ISSUE with scheuled tasks:

cd /var/lib/openvas/CA/
mkdir old/
cp * old/
cp clientsert.pem servercert.pem

cd /var/lib/openvas/private/CA/
mkdir old/
cp * old/
cp clientkey.pem serverkey.pem

Conclusion

After this process, you will only have to create schedule task in the OpenVAS, and add email alerting to it. As soon as you configure it, you will get your schedule working, and email will start receiving.

Regards, Nedzad

#email #kali #openvas

Thu, 16 Nov 2017 00:00:00 +0100