[Swan] Libreswan version 4.8 abort when connecting with ikev1 xauth with psk
António Silva
asilva at wirelessmundi.com
Thu Oct 13 17:29:10 EEST 2022
Hi,
I just update libreswan from version 4.7 to 4.8, but with the newest version I can’t establish a connection whit current configuration, it exit with status 134.
Just revert to version 4.7 and everything working ok.
The log when trying to connect:
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[1] 16.138.17.119 #1: responding to Main Mode from unknown peer 16.138.17.119:500
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[1] 16.138.17.119 #1: sent Main Mode R1
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[1] 16.138.17.119 #1: sent Main Mode R2
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[1] 16.138.17.119 #1: Peer ID is ID_IPV4_ADDR: '192.168.1.60'
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[1] 16.138.17.119 #1: switched to "tunnel8"[2] 16.138.17.119
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[1] 16.138.17.119: deleting connection instance with peer 16.138.17.119 {isakmp=#0/ipsec=#0}
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: IKE SA established {auth=PRESHARED_KEY cipher=AES_CBC_256 integ=HMAC_SHA2_256 group=MODP2048}
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: XAUTH: Sending Username/Password request (MAIN_R3->XAUTH_R0)
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: XAUTH: password file authentication method requested to authenticate user 'asilvapt at mad.lab'
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: XAUTH: password file (/etc/ipsec.d/passwd) open.
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: XAUTH: success user(asilvapt at mad.lab:(null))
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: XAUTH: User asilvapt at mad.lab: Authentication Successful
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: XAUTH: xauth_inR1(STF_OK)
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: IKE SA established {auth=PRESHARED_KEY cipher=AES_CBC_256 integ=HMAC_SHA2_256 group=MODP2048}
Oct 13 15:44:04 sol pluto[3555]: | pool 192.168.20.2-192.168.20.2: growing address pool from 0 to 1
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: modecfg_inR0(STF_OK)
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: sent ModeCfg reply, expecting Ack {auth=PRESHARED_KEY cipher=AES_CBC_256 integ=HMAC_SHA2_256 group=MODP2048}
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #1: the peer proposed: 192.168.20.0/24 -<all>-> 192.168.20.2/32
Oct 13 15:44:04 sol pluto[3555]: | checking hostpair 0.0.0.0/0 -> 192.168.20.2/32
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #2: responding to Quick Mode proposal {msgid:537d8833}
Oct 13 15:44:04 sol pluto[3555]: "tunnel8"[2] 16.138.17.119 #2: us: 0.0.0.0/0===82.100.227.27[@xauth.lab,MS+XS+S=C] them: 16.138.17.119[192.168.1.60,+MC+XC+S=C]===192.168.20.2/32
Oct 13 15:44:04 sol pluto[3555]: ABORT: ASSERTION FAILED: pi->inbound.keymat.len == needed_len (compute_proto_keymat() +339 /programs/pluto/ikev1_quick.c)
Oct 13 15:44:04 sol ipsec__plutorun[6759]: !pluto failure!: exited with error status 134 (signal 6)
Oct 13 15:44:04 sol ipsec__plutorun[6761]: restarting IPsec after pause...
Server configuration:
conn tunnel8-aggr
aggrmode=yes
also=tunnel8
conn tunnel8
pfs=no
type=tunnel
auto=add
ikev2=no
phase2=esp
authby=secret
keyingtries=3
ikelifetime=24h
salifetime=24h
left=82.100.227.27
leftsubnet=0.0.0.0/0
leftid=@xauth.lab
right=%any
rightid=%any
rightaddresspool=192.168.20.100-192.168.20.254
dpddelay=30
dpdtimeout=300
dpdaction=clear
leftxauthserver=yes
rightxauthclient=yes
leftmodecfgserver=yes
rightmodecfgclient=yes
modecfgpull=yes
fragmentation=yes
xauthby=file
Cliente configuration (using libreswan 4.5)
conn tunnel1
pfs=no
type=tunnel
auto=start
ikev2=no
phase2=esp
authby=secret
keyingtries=3
ikelifetime=8h
salifetime=8h
left=192.168.1.60
leftnexthop=16.138.17.119
right=xauth.lab
rightsubnet=192.168.20.0/24
rightid=@xauth.lab
dpddelay=30
dpdtimeout=300
dpdaction=restart
leftxauthclient=yes
leftmodecfgclient=yes
leftusername=asilvapt at mad.lab
modecfgpull=yes
fragmentation=yes
ipsec-interface=yes
Thanks for the help.
Regards,
Antonio
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