From cfbd9d02e2b70a3c537a18532768d33882d0cd9f Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Wed, 27 Mar 2013 23:09:47 +0100 Subject: mod_s2s: Prevent s2s to and from hosts we serve locally --- plugins/mod_s2s/mod_s2s.lua | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'plugins/mod_s2s/mod_s2s.lua') diff --git a/plugins/mod_s2s/mod_s2s.lua b/plugins/mod_s2s/mod_s2s.lua index 0d552ce8..6893d184 100644 --- a/plugins/mod_s2s/mod_s2s.lua +++ b/plugins/mod_s2s/mod_s2s.lua @@ -80,6 +80,10 @@ function route_to_existing_session(event) log("warn", "Attempt to send stanza from %s - a host we don't serve", from_host); return false; end + if hosts[to_host] then + log("warn", "Attempt to route stanza to a remote %s - a host we do serve?!", from_host); + return false; + end local host = hosts[from_host].s2sout[to_host]; if host then -- We have a connection to this host already @@ -188,6 +192,9 @@ function make_authenticated(event) }); end end + if hosts[host] then + session:close({ condition = "undefined-condition", text = "Attempt to authenticate as a host we serve" }); + end if session.type == "s2sout_unauthed" then session.type = "s2sout"; elseif session.type == "s2sin_unauthed" then @@ -321,6 +328,11 @@ function stream_callbacks.streamopened(session, attr) end end + if hosts[from] then + session:close({ condition = "undefined-condition", text = "Attempt to connect from a host we serve" }); + return; + end + if session.secure and not session.cert_chain_status then if check_cert_status(session) == false then return; -- cgit v1.2.3