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Commit e112193c authored by Tomáš Plesník's avatar Tomáš Plesník
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inicialni stav

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2011-11-16 v1.0.0 stable version
--------------------------------
- initial package of warden client
- SSL certificate authentication/authorization supported
- automatized installation process
For installation of warden-client on local machine use install.sh.
Default destination directory is /opt/warden-client/.
For more information about install.sh options run install.sh -h.
You must be root for running this script.
BSD License
Copyright © 2011 Cesnet z.s.p.o
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the Cesnet z.s.p.o nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COMPANY BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+------------------------------+
| README - Warden Client 1.0.0 |
+------------------------------+
Content
A. Overall Information
B. Installation Dependencies
C. Registration
D. Installation
E. Integration with Local Applications
F. Client Upgrade
G. Functions, Arguments and Calls
H. Authors
--------------------------------------------------------------------------------
A. Overall Information
1. About Warden Client
Warden is a client-based architecture service designed to share detected
security issues (events) among CSIRT and CERT teams in a simple and fast way.
This package offers full client functionality to both report events to
server and to retreive batch of new events from server. It is composed from
several perl modules/libraries which should be included into local
application of detection of reaction type.
2. Version
1.0.0 (2011-11-16)
3. Package structure
warden-client/
doc/
example-sender.pl.txt
example-receiver.pl.txt
etc/
warden-client.conf
var/
lib/
WardenClientSend.pm
WardenClientReceive.pm
WardenConf.pm
--------------------------------------------------------------------------------
B. Installation Dependencies
Perl 5.10.1
SOAP::Lite
IO::Socket::SSL
SOAP::Transport::TCP
FindBin
--------------------------------------------------------------------------------
C. Registration
Any client attempting to communicate with Warden server must be registered
on this server. Unknown (not registered) clients are not allowed to exchange
any data with server.
Registration of your client is provided by Warden server administrator.
Usually via e-mail.
Clients need to have valid client certificate to prove their identity to
the Warden server.
Each client is defined by its hostname, service name, type of client, type
of requested events and CIDR the client is allowed to communicate from only.
Hostname - hostname of client to be registered
Service name - Text string. Unique name of the service
the client is integrated in.
E.g. 'ScanDetector_1.0'. This is mandatory for
'Sender' client. Default value null is used for
'Receiver' client.
Type of client - Either 'Sender' or 'Receiver'.
Type of requested events - Type of events the client only accepts from
Warden server. This is mandatory only for
'Receiver' client. Default value null is used
for 'Sender' client. Brief information about
event types is provided in section G. Functions
arguments and calls.
CIDR - CIDR stands for IP address or IP (sub)net
the client is going to communicate from. Any
communications between the client and Warden
Server must be performed from IP address from
a range stated in CIDR.
Examples: '123.123.0.0/16', '123.123.123.123/32'
For complete information about client attributes and/or event types see
Warden project documentation.
--------------------------------------------------------------------------------
D. Installation
1. Check SHA1 checksum of corresponding Warden client package archive
$ sha1sum -c warden-client-1.0.0.tar.gz.sig
2. Untar it
$ tar xzvf warden-client-1.0.0.tar.gz
3. Run install.sh
Default destination directory is /opt/warden-client/
For more information about install.sh options run install.sh -h
You must be root for running this script.
4. Installation Privileges
Warden-client is designed to be run under standard privileges. It should be
part of other applications run under usual user privileges. However
warden-client uses SSL certificates for security purposes which are often
not accessible by standard users.
To solve this issue warden-client should be install under root privileges.
It copyies local SSL key and certificate files into warden-client/etc
folder where those are accessible even with standard privileges.
Should any user want to preserve standard location of certificate files,
he or she is advised to remove key and certificate files after installation
from /warden-client/etc/ and manually edit paths to certificate files in
warden-client/etc/warden-client.conf. In most cases, this change will force
warden-client to be run under root privileges though.
5. Configuration file
You are advised to check configuration file
warden-client/etc/warden-client.conf. After installation.
SOAP protocol is used for handling communication between server and clients.
Therefore, correct URI of Warden server must be set.
Authentication of clients and server is performed using client and server
SSL certificates. Both clients and server must have valid certificate.
Configuration file contains following parameters:
URI - URI Warden server
e.g. 'https://warden-dev.cesnet.cz:443/Warden'
SSL_KEY_FILE - path to a host key file,
e.g. '/opt/warden-client/etc/warden-dev.cesnet.cz.key'
SSL_CERT_FILE - path to a host certificate file,
e.g. '/opt/warden-client/etc/warden-dev.cesnet.cz.pem'
SSL_CA_FILE - path to a CA file
e.g. '/etc/ssl/certs/tcs-ca-bundle.pem'
6. Usage of install.sh
Usage: $ ./install.sh [-d <directory>] [-u <user>] [-k <ssl_key_file>]
[-c <ssl_cert_file>] [-a <ssl_ca_file>] [-hV]"
-d <directory> installation directory (default: /opt)
-u <user> owner of warden client package (user for
running detection scripts)
-k <ssl_key_file> SSL certificate key file path
-c <ssl_cert_file> SSL certificate file path
-a <ssl_ca_file> CA certificate file path
-h print this help
-V print script version number and exit
Example: $ ./install.sh -d /opt -u detector -k /etc/ssl/private/client.key
-c /etc/ssl/certs/client.pem -a /etc/ssl/certs"
--------------------------------------------------------------------------------
E. Integration with Local Applications
(Note: Clients need to be registered on server to be able to communicate with
server properly. See section C. Registration for more information about
client registration.)
1. Client sender (this type of client reports events to Warden server)
Client functionality is included as a Perl module (WardenClientSend.pm)
into Perl code of local detection application.
See warden-client/doc/example-sender.pl.txt for example how to use
warden-client sender functionality.
Brief information about syntax of sending functions and functionality is
provided in section G. Functions arguments and calls.
2. Client receiver (this type of clients uploads events from Warden server)
Client functionality is included as a perl module (WardenClientReceive.pm)
into perl code of local 'reaction' application or may be used as as core of
standalone local application.
See warden-client/doc/example-receiver.pl.txt for example how to use
warden-client receiver functionality.
Brief information about syntax of receiving functions and functionality is
provided in section G. Functions arguments and calls.
--------------------------------------------------------------------------------
F. Client Upgrade
To upgrade a client, install a new version.
--------------------------------------------------------------------------------
G. Functions, Arguments and Calls
1. WardenClientSend::saveNewEvent
Function to upload one event on the Warden server. See example 'Sender'
client in warden-client/doc/example-sender.pl.txt
Function call (Perl):
# Path to warden-client folder
$warden_path = '/opt/warden-client';
# Inclusion of warden-client sender module
require $warden_path . '/lib/WardenClientSend.pm';
# Sending event to Warden server
WardenClientSend::saveNewEvent($warden_path, \@event);
Event array is defined as (perl):
@event = ($service, $detected, $type, $source_type, $source, $target_proto,
$target_port, $attack_scale, $note, $priority, $timeout );
Event array attributes with example value and explanation on the right
(Perl):
# SERVICE - VARCHAR (64)
# Name of a service detecting this event. Service must be the same with this
# provided in 'Sender' client registration. See more about this issue in
# section C. Registration.
$service = "ScanDetector";
# DETECTED - TIMESTAMP in UTC, ISO 8601
# Date and time when was event detected.
$detected = "2011-07-16T19:20:30.45";
# TYPE - VARCHAR (64)
# Type of reported event. Currently supported values are:
# darkspace - access into honeypot segment
# portscan - scannig of TCP/UDP ports
# bruteforce - bruteforce/dictionary attack against authentication
# service(s)
# spam - unsolicited e-mail that does not have phishing-like
# character
# phishing - e-mail attempting to gather sensitive data
# botnet_c_c - command and control center of botnet
# dos - (distributed) denial of service attack
# malware - virus sample
# copyright - copyright infringement issue
# webattack - attack against web application
# other - anything that does not match any of previous categories
$type = "portscan";
# SOURCE_TYPE - VARCHAR 64
# Type of source of reported attack/issue. Currently supported values are:
# IP, URL, Reply-To:, null
$source_type = "IP";
# SOURCE - VARCHAR 256
# identification of attack source/origin according to source_type
$source = "123.123.123.123";
# TARGET_PROTO - VARCHAR 16
# Protocol type of reported attack/issue target. Supported are all L3 and L4
# protocols and null
$target_proto = "TCP";
# TARGET_PORT - INT 2
# Port number of reported attack/issue target or null.
$target_port = "22";
# ATTACK_SCALE - INT 4
# Definition of attack scale, e.g. number of affected targets. Null is also
# possible when attack scale is not known or clear enough.
$attack_scale = "1234567890";
# NOTE - TEXT
# Some important(!) note or comment or null. Also, it may contain virus
# sample, phishing e-mail with headers and other accordingly to event type.
$note = "this threat is dangerous";
# PRIORITY - INT 1
# Subjective definition of incident severity. Values 0-255 or null are
# possible where 0 is the lowest priority.
$priority = "null";
# TIMEOUT - INT 2
# Subjective time (in minutes) or null. After this time event might be
# considered timeouted.
$timeout = "20";
2. WardenClientReceive::getNewEvents
Function to download batch of events from the Warden server. Downloaded
events are stored in @events array. See example 'Receiver' client in
warden-client/doc/example-receiver.pl.txt
Function call (perl):
# Path to warden-client directory
my $warden_path = '/opt/warden-client';
# Inclusion of warden-client receiving functionality
require $warden_path . '/lib/WardenClientReceive.pm';
# Definition of requested event type. Type must be the same with this
# provided in 'Receiver' client registration. See more about this issue in
# section C. Registration. See more about event types in section
# G. 1. WardenClientSend::saveNewEvent
$requested_type = "botnet_c_c";
# Download batch of new events from Warden server
@new_events = WardenClientReceive::getNewEvents($warden_path,
$requested_type);
Structure of each received event in the event array equals to this explained
in section G. 1. WardenClientSend::saveNewEvent. It has one additional
attribute ID - unique id of this particular event (BIGINT).
--------------------------------------------------------------------------------
H. Authors
Development: Tomas PLESNIK <plesnik@ics.muni.cz>
Jan SOUKAL <soukal@ics.muni.cz>
Copyright (C) 2011 Cesnet z.s.p.o
Special thanks go to Martin Drasar from CSIRT-MU for his help and support
in the development of Warden system.
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