added ikev2/rw-eap-ttls-phase2-piggyback scenario

This commit is contained in:
Andreas Steffen 2010-08-16 18:32:00 +02:00
parent 9ba53310ee
commit cf95e162f2
14 changed files with 170 additions and 0 deletions

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The roadwarriors <b>carol</b> and <b>dave</b> set up a connection each to gateway <b>moon</b>.
The strong mutual authentication is based on <b>EAP-TTLS</b> only (without a separate IKEv2
authentication) with the gateway being authenticated by a server certificate during the
EAP-TLS tunnel setup (phase1 of EAP-TTLS). This tunnel protects the ensuing weak client
authentication based on <b>EAP-MD5</b> (phase2 of EAP-TTLS). The server <b>moon</b>
piggybacks the tunneled EAP Identity request which starts phase2 of EAP-TTLS right onto
the TLS Finished message. <b>carol</b> presents the correct MD5 password and succeeds
whereas <b>dave</b> chooses the wrong password and fails.

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carol::cat /var/log/daemon.log::server requested EAP_TTLS authentication::YES
carol::cat /var/log/daemon.log::allow mutual EAP-only authentication::YES
carol::cat /var/log/daemon.log::server requested EAP_MD5 authentication::YES
carol::cat /var/log/daemon.log::EAP method EAP_TTLS succeeded, MSK established::YES
carol::cat /var/log/daemon.log::authentication of 'C=CH, O=Linux strongSwan, CN=moon.strongswan.org' with EAP successful::YES
dave::cat /var/log/daemon.log::server requested EAP_TTLS authentication::YES
dave::cat /var/log/daemon.log::allow mutual EAP-only authentication::YES
dave::cat /var/log/daemon.log::server requested EAP_MD5 authentication::YES
dave::cat /var/log/daemon.log::received EAP_FAILURE, EAP authentication failed::YES
moon::cat /var/log/daemon.log::EAP_TTLS phase2 authentication of 'carol@strongswan.org' with EAP_MD5 successful::YES
moon::cat /var/log/daemon.log::authentication of 'carol@strongswan.org' with EAP successful::YES
moon::cat /var/log/daemon.log::EAP method EAP_TTLS failed for peer dave@strongswan.org::YES
moon::ipsec statusall::rw-eap.*ESTABLISHED.*carol@strongswan.org::YES
moon::ipsec statusall::rw-eap.*ESTABLISHED.*dave@stronswan.org::NO
carol::ipsec statusall::home.*ESTABLISHED::YES
dave::ipsec statusall::home.*ESTABLISHED::NO
carol::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_seq=1::YES
moon::tcpdump::IP carol.strongswan.org > moon.strongswan.org: ESP::YES
moon::tcpdump::IP moon.strongswan.org > carol.strongswan.org: ESP::YES

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# /etc/ipsec.conf - strongSwan IPsec configuration file
config setup
plutostart=no
charondebug="ike 2"
conn %default
ikelifetime=60m
keylife=20m
rekeymargin=3m
keyingtries=1
keyexchange=ikev2
conn home
left=PH_IP_CAROL
leftid=carol@strongswan.org
leftauth=eap
leftfirewall=yes
right=PH_IP_MOON
rightid="C=CH, O=Linux strongSwan, CN=moon.strongswan.org"
rightsubnet=10.1.0.0/16
rightsendcert=never
auto=add

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# /etc/ipsec.secrets - strongSwan IPsec secrets file
carol@strongswan.org : EAP "Ar3etTnp"

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# /etc/strongswan.conf - strongSwan configuration file
charon {
load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random x509 revocation hmac xcbc stroke kernel-netlink socket-default eap-identity eap-md5 eap-ttls updown
multiple_authentication=no
}

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# /etc/ipsec.conf - strongSwan IPsec configuration file
config setup
plutostart=no
charondebug="ike 2"
conn %default
ikelifetime=60m
keylife=20m
rekeymargin=3m
keyingtries=1
keyexchange=ikev2
conn home
left=PH_IP_DAVE
leftid=dave@strongswan.org
leftauth=eap
leftfirewall=yes
right=PH_IP_MOON
rightid="C=CH, O=Linux strongSwan, CN=moon.strongswan.org"
rightsubnet=10.1.0.0/16
rightsendcert=never
auto=add

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# /etc/ipsec.secrets - strongSwan IPsec secrets file
dave@strongswan.org : EAP "UgaM65Va"

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# /etc/strongswan.conf - strongSwan configuration file
charon {
load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random x509 revocation hmac xcbc stroke kernel-netlink socket-default eap-identity eap-md5 eap-ttls updown
multiple_authentication=no
}

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# /etc/ipsec.conf - strongSwan IPsec configuration file
config setup
strictcrlpolicy=no
plutostart=no
charondebug="ike 2"
conn %default
ikelifetime=60m
keylife=20m
rekeymargin=3m
keyingtries=1
keyexchange=ikev2
conn rw-eap
left=PH_IP_MOON
leftsubnet=10.1.0.0/16
leftcert=moonCert.pem
leftauth=eap-ttls
leftfirewall=yes
rightauth=eap-ttls
rightsendcert=never
right=%any
auto=add

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# /etc/ipsec.secrets - strongSwan IPsec secrets file
: RSA moonKey.pem
carol@strongswan.org : EAP "Ar3etTnp"
dave@strongswan.org : EAP "W7R0g3do"

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# /etc/strongswan.conf - strongSwan configuration file
charon {
load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random x509 revocation hmac xcbc stroke kernel-netlink socket-default eap-identity eap-md5 eap-ttls updown
multiple_authentication=no
plugins {
eap-ttls {
phase2_method = md5
phase2_piggyback = yes
}
}
}

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moon::ipsec stop
carol::ipsec stop
dave::ipsec stop
moon::/etc/init.d/iptables stop 2> /dev/null
carol::/etc/init.d/iptables stop 2> /dev/null
dave::/etc/init.d/iptables stop 2> /dev/null

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moon::/etc/init.d/iptables start 2> /dev/null
carol::/etc/init.d/iptables start 2> /dev/null
dave::/etc/init.d/iptables start 2> /dev/null
moon::ipsec start
carol::ipsec start
dave::ipsec start
carol::sleep 1
carol::ipsec up home
dave::ipsec up home
dave::sleep 1

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#!/bin/bash
#
# This configuration file provides information on the
# UML instances used for this test
# All UML instances that are required for this test
#
UMLHOSTS="alice moon carol winnetou dave"
# Corresponding block diagram
#
DIAGRAM="a-m-c-w-d.png"
# UML instances on which tcpdump is to be started
#
TCPDUMPHOSTS="moon"
# UML instances on which IPsec is started
# Used for IPsec logging purposes
#
IPSECHOSTS="moon carol dave"