Bug #3416
ipsec tunnel: properly reject unencrypted traffic
| Status: | CLOSED | Start date: | ||
|---|---|---|---|---|
| Priority: | Normal | Due date: | ||
| Assignee: | - | % Done: | 100% | |
| Category: | nethserver-ipsec | |||
| Target version: | v6.8 | |||
| Security class: | Resolution: | |||
| Affected version: | v6.8 | NEEDINFO: | No |
Description
The firewall rule that blocks unencrypted traffic through a tunnel is too generic: it should block only traffic from one side of the tunnel to the other.
Currently, all traffic from the local lan to the remote end is blocked.
Related issues
Associated revisions
ipsec: block traffic from selected subnets. Refs #3416
History
#1
Updated by Filippo Carletti about 5 years ago
- Related to Enhancement #3393: ipsec tunnel restart blocks udp traffic added
#2
Updated by Filippo Carletti about 5 years ago
- Status changed from NEW to TRIAGED
- % Done changed from 0 to 20
The firewall rule is
REJECT loc net:192.168.6.0/24
while it'd be:
REJECT loc:192.168.7.0/24 net:192.168.6.0/24
#3
Updated by Filippo Carletti about 5 years ago
- Status changed from TRIAGED to ON_DEV
- Assignee set to Filippo Carletti
- % Done changed from 20 to 30
#4
Updated by Filippo Carletti about 5 years ago
- Status changed from ON_DEV to MODIFIED
- Assignee deleted (
Filippo Carletti) - % Done changed from 30 to 60
#5
Updated by Filippo Carletti about 5 years ago
- Status changed from MODIFIED to ON_QA
- % Done changed from 60 to 70
Package in nethserver-testing:
nethserver-ipsec-1.1.7-1.2.g2742e01.ns6.noarch.rpm
Test case:
see issue #3393
#6
Updated by Giacomo Sanchietti about 5 years ago
- Assignee set to Giacomo Sanchietti
#7
Updated by Giacomo Sanchietti about 5 years ago
- Status changed from ON_QA to VERIFIED
- Assignee deleted (
Giacomo Sanchietti) - % Done changed from 70 to 90
Difference in iptables rules before and after updae:
--- before 2016-07-13 13:24:19.563404254 +0000 +++ after 2016-07-13 13:24:36.316348818 +0000 @@ -186,8 +186,10 @@ Chain loc2net (1 references) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED -reject all -- 0.0.0.0/0 11.11.11.0/24 /* reject ipsec-tunnel: t1 */ -reject all -- 0.0.0.0/0 10.10.10.0/24 /* reject ipsec-tunnel: t1 */ +reject all -- 192.168.5.0/24 11.11.11.0/24 /* reject ipsec-tunnel: t1 */ +reject all -- 192.168.5.0/24 10.10.10.0/24 /* reject ipsec-tunnel: t1 */ +reject all -- 192.168.6.0/24 11.11.11.0/24 /* reject ipsec-tunnel: t1 */ +reject all -- 192.168.6.0/24 10.10.10.0/24 /* reject ipsec-tunnel: t1 */ ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain loc_frwd (1 references) @@ -297,7 +299,7 @@ tcpflags tcp -- 0.0.0.0/0 0.0.0.0/0 lvpn2fw all -- 0.0.0.0/0 0.0.0.0/0 policy match dir in pol none match-set lvpn src -Chain reject (15 references) +Chain reject (17 references) target prot opt source destination DROP all -- 0.0.0.0/0 0.0.0.0/0 ADDRTYPE match src-type BROADCAST DROP all -- 224.0.0.0/4 0.0.0.0/0
#8
Updated by Giacomo Sanchietti about 5 years ago
- Status changed from VERIFIED to CLOSED
- % Done changed from 90 to 100
In nethserver-updates:
- nethserver-ipsec-1.1.8-1.ns6.noarch.rpm