hi again… i have disabled the icmp pings… same result... currently:
/etc/pf.conf: tcp_in = "{ www, https }" udp = "{ domain, ntp, snmp }" ping = "echoreq" set skip on lo scrub in antispoof for xn0 inet block in all pass out all keep state pass out inet proto udp from any to any port 33433 >< 33626 keep state pass proto udp to any port $dup ### pass inet proto icmp all icmp-type $ping keep state pass in inet proto tcp to any port $tcp_in flags S/SAF synproxy state pass proto tcp to any port ssh # sysctl -a | grep sourceroute net.inet.ip.sourceroute: 0 net.inet.ip.accept_sourceroute: 0 in /etc/defaults/rc.conf: forward_sourceroute="NO" accept_sourceroute="NO" what am i missing? this is pretty important…. thanks….. On Sat, Oct 4, 2014 at 11:46 PM, el kalin <ka...@el.net> wrote: > > hi all… > > i'm setting up a freebsd 10 on aws (amazon) to be as secure as possible… > i used openvas to scan it and pretty much everything is fine except this: > > "The remote host accepts loose source routed IP packets. > The feature was designed for testing purpose. > An attacker may use it to circumvent poorly designed IP filtering > and exploit another flaw. However, it is not dangerous by itself. > Solution: > drop source routed packets on this host or on other ingress > routers or firewalls." > > there is no "other ingress routers or firewalls." except the AWS "security > group" which only has open ports 80, 443 and 22 and allICMP for pinging... > > on the instance itself i have this already set up... > > in /etc/sysctl.conf i have: > > net.inet.ip.accept_sourceroute=0 > > in /etc/derfaults/rc.conf i got: > > accept_sourceroute="NO" > > > # sysctl -a | grep accept_sourceroute > net.inet.ip.accept_sourceroute: 0 > > i also have a pf enabled locally pretty much with the same ports as the > security group. can i use pf to drop those packets? > > how do i drop the source routed packets? > without this i can't pass a pci scan… > > thanks... > > > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"