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igmpproxy: drop SSDP packets

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It is insecure to let this type of packets inside
They can e.g. open ports on some other routers with UPnP, etc

Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com>
This commit is contained in:
Dmitry Tunin
2018-07-28 17:48:42 +03:00
committed by John Crispin
parent 53a4502013
commit c128371124
2 changed files with 13 additions and 1 deletions
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12
package/network/services/igmpproxy/files/igmpproxy.init
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@@ -68,6 +68,18 @@ igmp_add_firewall_routing() {
[[ "$direction" = "downstream" && ! -z "$zone" ]] || return 0
# First drop SSDP packets then accept all other multicast
json_add_object ""
json_add_string type rule
json_add_string src "$upstream"
json_add_string dest "$zone"
json_add_string family ipv4
json_add_string proto udp
json_add_string dest_ip "239.255.255.250"
json_add_string target DROP
json_close_object
json_add_object ""
json_add_string type rule
json_add_string src "$upstream"