Disable mandatory ECP support for attestion

2014-03-07 21:56:34 +01:00
parent ac17ca1ad7
commit 342bc6e545
24 changed files with 347 additions and 9 deletions
@@ -0,0 +1,26 @@
+The roadwarriors <b>carol</b> and <b>dave</b> set up a connection each to gateway <b>moon</b>
+using EAP-TTLS authentication only with the gateway presenting a server certificate and
+the clients doing EAP-MD5 password-based authentication.
+In a next step the EAP-TNC protocol is used within the EAP-TTLS tunnel to determine the
+state of <b>carol</b>'s and <b>dave</b>'s operating system via the <b>TNCCS 2.0 </b>
+client-server interface compliant with <b>RFC 5793 PB-TNC</b>. The OS IMC and OS IMV pair
+is using the <b>IF-M 1.0</b> measurement protocol defined by <b>RFC 5792 PA-TNC</b> to
+exchange PA-TNC attributes.
+<p>
+<b>carol</b> sends information on her operating system consisting of the PA-TNC attributes
+<em>Product Information</em>, <em>String Version</em>, and <em>Device ID</em> up-front
+to the Attestation IMV, whereas <b>dave</b> must be prompted by the IMV to do so via an
+<em>Attribute Request</em> PA-TNC attribute. <b>dave</b> is instructed to do a reference
+measurement on all files in the <b>/bin</b> directory. <b>carol</b> is then prompted to
+measure a couple of individual files and the files in the <b>/bin</b> directory as
+well as to get metadata on the <b>/etc/tnc_confg</b> configuration file.
+<p>
+Since the Attestation IMV negotiates a Diffie-Hellman group for TPM-based measurements,
+the mandatory default being <b>ecp256</b>, with the strongswan.conf option
+<b>mandatory_dh_groups = no</b> no ECC support is required.
+<p>
+<b>carol</b> passes the health test and <b>dave</b> fails because IP forwarding is
+enabled. Based on these assessments which are communicated to the IMCs using the
+<em>Assessment Result</em> PA-TNC attribute, the clients are connected by gateway <b>moon</b>
+to the "rw-allow" and "rw-isolate" subnets, respectively.
+</p>
@@ -0,0 +1,20 @@
+carol::cat /var/log/daemon.log::PB-TNC access recommendation is 'Access Allowed'::YES
+carol::cat /var/log/daemon.log::EAP method EAP_TTLS succeeded, MSK established::YES
+carol::cat /var/log/daemon.log::authentication of 'moon.strongswan.org' with EAP successful::YES
+carol::cat /var/log/daemon.log::CHILD_SA home{1} established.*TS 192.168.0.100/32 === 10.1.0.0/28::YES
+dave:: cat /var/log/daemon.log::PB-TNC access recommendation is 'Quarantined'::YES
+dave:: cat /var/log/daemon.log::EAP method EAP_TTLS succeeded, MSK established::YES
+dave:: cat /var/log/daemon.log::authentication of 'moon.strongswan.org' with EAP successful::YES
+dave:: cat /var/log/daemon.log::CHILD_SA home{1} established.*TS 192.168.0.200/32 === 10.1.0.16/28::YES
+moon:: ipsec attest --session 2> /dev/null::Debian 7.2 x86_64.*[email protected] - allow::YES
+moon:: cat /var/log/daemon.log::added group membership 'allow'::YES
+moon:: cat /var/log/daemon.log::authentication of '[email protected]' with EAP successful::YES
+moon:: ipsec attest --session 2> /dev/null::Debian 7.2 x86_64.*[email protected] - isolate::YES
+moon:: cat /var/log/daemon.log::added group membership 'isolate'::YES
+moon:: cat /var/log/daemon.log::authentication of '[email protected]' with EAP successful::YES
+moon:: ipsec statusall 2> /dev/null::rw-allow.*10.1.0.0/28 === 192.168.0.100/32::YES
+moon:: ipsec statusall 2> /dev/null::rw-isolate.*10.1.0.16/28 === 192.168.0.200/32::YES
+carol::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_req=1::YES
+carol::ping -c 1 PH_IP_VENUS::64 bytes from PH_IP_VENUS: icmp_req=1::NO
+dave:: ping -c 1 PH_IP_VENUS::64 bytes from PH_IP_VENUS: icmp_req=1::YES
+dave:: ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_req=1::NO
@@ -0,0 +1,23 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+	charondebug="tnc 3, imc 3, pts 3"
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+
+conn home
+	left=PH_IP_CAROL
+	[email protected]
+	leftauth=eap
+	leftfirewall=yes
+	right=PH_IP_MOON
+	[email protected]
+	rightauth=any
+	rightsendcert=never
+	rightsubnet=10.1.0.0/16
+	auto=add
@@ -0,0 +1,3 @@
+# /etc/ipsec.secrets - strongSwan IPsec secrets file
+
+[email protected] : EAP "Ar3etTnp"
@@ -0,0 +1,22 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  load = curl aes md5 sha1 sha2 hmac gmp pem pkcs1 random nonce x509 revocation stroke kernel-netlink socket-default eap-identity eap-md5 eap-ttls eap-tnc tnc-tnccs tnc-imc tnccs-20 updown
+  multiple_authentication=no
+  plugins {
+    eap-tnc {
+      protocol = tnccs-2.0
+    }
+  }
+}
+
+libimcv {
+  plugins {
+    imc-os {
+      push_info = yes
+    }
+    imc-attestation {
+      mandatory_dh_groups = no
+    }
+  }
+}
@@ -0,0 +1,4 @@
+#IMC configuration file for strongSwan client 
+
+IMC "OS"          /usr/local/lib/ipsec/imcvs/imc-os.so
+IMC "Attestation" /usr/local/lib/ipsec/imcvs/imc-attestation.so
@@ -0,0 +1,23 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+	charondebug="tnc 3, imc 3, pts 3"
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+
+conn home
+	left=PH_IP_DAVE
+	[email protected]
+	leftauth=eap
+	leftfirewall=yes
+	right=PH_IP_MOON
+	[email protected]
+	rightauth=any
+	rightsendcert=never
+	rightsubnet=10.1.0.0/16
+	auto=add
@@ -0,0 +1,3 @@
+# /etc/ipsec.secrets - strongSwan IPsec secrets file
+
+[email protected] : EAP "W7R0g3do"
@@ -0,0 +1,25 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  load = curl aes md5 sha1 sha2 hmac gmp pem pkcs1 random nonce x509 revocation stroke kernel-netlink socket-default eap-identity eap-md5 eap-ttls eap-tnc tnc-imc tnc-tnccs tnccs-20 updown
+  multiple_authentication=no
+  plugins {
+    eap-tnc {
+      protocol = tnccs-2.0
+    }
+    tnc-imc {
+      preferred_language = de
+    }
+  }
+}
+
+libimcv {
+  plugins {
+    imc-os {
+      push_info = no
+    }
+    imc-attestation {
+      mandatory_dh_groups = no
+    }
+  }
+}
@@ -0,0 +1,4 @@
+#IMC configuration file for strongSwan client 
+
+IMC "OS"          /usr/local/lib/ipsec/imcvs/imc-os.so
+IMC "Attestation" /usr/local/lib/ipsec/imcvs/imc-attestation.so
@@ -0,0 +1,34 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+	charondebug="tnc 3, imv 3, pts 3"
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+
+conn rw-allow
+	rightgroups=allow
+	leftsubnet=10.1.0.0/28
+	also=rw-eap
+	auto=add
+
+conn rw-isolate
+	rightgroups=isolate
+	leftsubnet=10.1.0.16/28
+	also=rw-eap
+	auto=add
+
+conn rw-eap
+	left=PH_IP_MOON
+	leftcert=moonCert.pem
+	[email protected]
+	leftauth=eap-ttls
+	leftfirewall=yes
+	rightauth=eap-ttls
+	rightid=*@strongswan.org
+	rightsendcert=never
+	right=%any
@@ -0,0 +1,6 @@
+# /etc/ipsec.secrets - strongSwan IPsec secrets file
+
+: RSA moonKey.pem
+
+[email protected] : EAP "Ar3etTnp"
+[email protected]  : EAP "W7R0g3do"
@@ -0,0 +1,29 @@
+/* Devices */
+
+INSERT INTO devices (                  /*  1 */
+  value, product, created  
+) VALUES (
+  'aabbccddeeff11223344556677889900', 28, 1372330615
+);
+
+/* Groups Members */
+
+INSERT INTO groups_members (
+  group_id, device_id
+) VALUES (
+  10, 1
+);
+
+INSERT INTO enforcements (
+  policy, group_id, max_age, rec_fail, rec_noresult
+) VALUES (
+  3, 10, 0, 2, 2
+);
+
+INSERT INTO enforcements (
+  policy, group_id, max_age
+) VALUES (
+  16, 2, 0
+);
+
+DELETE FROM enforcements WHERE id = 1;
@@ -0,0 +1,34 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  load = curl aes md5 sha1 sha2 hmac gmp pem pkcs1 random nonce x509 revocation stroke kernel-netlink socket-default eap-identity eap-ttls eap-md5 eap-tnc tnc-imv tnc-tnccs tnccs-20 updown sqlite
+  multiple_authentication=no
+  plugins {
+    eap-ttls {
+      phase2_method = md5
+      phase2_piggyback = yes
+      phase2_tnc = yes
+    }
+    eap-tnc {
+      protocol = tnccs-2.0
+    }
+  }
+}
+
+libimcv {
+  database = sqlite:///etc/pts/config.db
+  policy_script = ipsec imv_policy_manager
+  plugins {
+    imv-attestation {
+      hash_algorithm = sha1
+      dh_group = modp2048
+      mandatory_dh_groups = no
+    }
+  }
+}
+
+attest {
+  load = random nonce openssl sqlite
+  database = sqlite:///etc/pts/config.db
+}
+
@@ -0,0 +1,4 @@
+#IMV configuration file for strongSwan client 
+
+IMV "OS"          /usr/local/lib/ipsec/imcvs/imv-os.so
+IMV "Attestation" /usr/local/lib/ipsec/imcvs/imv-attestation.so
@@ -0,0 +1,8 @@
+moon::ipsec stop
+carol::ipsec stop
+dave::ipsec stop
+moon::iptables-restore < /etc/iptables.flush
+carol::iptables-restore < /etc/iptables.flush
+dave::iptables-restore < /etc/iptables.flush
+carol::echo 1 > /proc/sys/net/ipv4/ip_forward
+moon::rm /etc/pts/config.db
@@ -0,0 +1,18 @@
+moon::iptables-restore < /etc/iptables.rules
+carol::iptables-restore < /etc/iptables.rules
+dave::iptables-restore < /etc/iptables.rules
+carol::echo 0 > /proc/sys/net/ipv4/ip_forward
+dave::echo aabbccddeeff11223344556677889900 > /var/lib/dbus/machine-id
+moon::cd /usr/local/share/strongswan/templates/database/imv; cat tables.sql data.sql /etc/pts/data1.sql | sqlite3 /etc/pts/config.db
+moon::cat /etc/tnc_config
+carol::cat /etc/tnc_config
+dave::cat /etc/tnc_config
+moon::ipsec start
+dave::ipsec start
+carol::ipsec start
+dave::sleep 1
+dave::ipsec up home
+carol::ipsec up home
+carol::sleep 1
+moon::ipsec attest --sessions
+moon::ipsec attest --devices
@@ -0,0 +1,26 @@
+#!/bin/bash
+#
+# This configuration file provides information on the
+# guest instances used for this test
+
+# All guest instances that are required for this test
+#
+VIRTHOSTS="alice venus moon carol winnetou dave"
+
+# Corresponding block diagram
+#
+DIAGRAM="a-v-m-c-w-d.png"
+
+# Guest instances on which tcpdump is to be started
+#
+TCPDUMPHOSTS="moon"
+
+# Guest instances on which IPsec is started
+# Used for IPsec logging purposes
+#
+IPSECHOSTS="moon carol dave"
+
+# Guest instances on which FreeRadius is started
+#
+RADIUSHOSTS=
+