Qubes/core-agent-linux
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Merge remote-tracking branch 'origin/pr/209'

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* origin/pr/209:
  firewall: drop INVALID state TCP packets
This commit is contained in:
Marek Marczykowski-Górecki 2020-01-27 05:37:28 +01:00
commit c7060bb97a
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2 changed files with 4 additions and 0 deletions
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2
network/ip6tables-enabled
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@ -23,6 +23,7 @@ COMMIT
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
:QBS-FORWARD - [0:0]
-A INPUT -m state --state INVALID -j DROP
-A INPUT -i lo -j ACCEPT
-A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -i vif+ -p icmpv6 --icmpv6-type router-advertisement -j DROP
@ -31,6 +32,7 @@ COMMIT
-A INPUT -i vif+ -j REJECT --reject-with icmp6-adm-prohibited
-A INPUT -p icmpv6 -j ACCEPT
-A INPUT -j DROP
-A FORWARD -m state --state INVALID -j DROP
-A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -j QBS-FORWARD
-A FORWARD -i vif+ -o vif+ -j DROP

2
network/iptables
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@ -26,12 +26,14 @@ COMMIT
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
:QBS-FORWARD - [0:0]
-A INPUT -m state --state INVALID -j DROP
-A INPUT -i vif+ -p udp -m udp --dport 68 -j DROP
-A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -i vif+ -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -i vif+ -j REJECT --reject-with icmp-host-prohibited
-A INPUT -j DROP
-A FORWARD -m state --state INVALID -j DROP
-A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -j QBS-FORWARD
-A FORWARD -i vif+ -o vif+ -j DROP