From 19a17068f1bc98a1556ff618b544b5fbf57eeba0 Mon Sep 17 00:00:00 2001 From: Richard van der Hoff Date: Mon, 6 Aug 2018 15:15:19 +0100 Subject: Check m.room.create for sane room_versions --- synapse/event_auth.py | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'synapse/event_auth.py') diff --git a/synapse/event_auth.py b/synapse/event_auth.py index b32f64e729..6baeccca38 100644 --- a/synapse/event_auth.py +++ b/synapse/event_auth.py @@ -20,7 +20,7 @@ from signedjson.key import decode_verify_key_bytes from signedjson.sign import SignatureVerifyException, verify_signed_json from unpaddedbase64 import decode_base64 -from synapse.api.constants import EventTypes, JoinRules, Membership +from synapse.api.constants import KNOWN_ROOM_VERSIONS, EventTypes, JoinRules, Membership from synapse.api.errors import AuthError, EventSizeError, SynapseError from synapse.types import UserID, get_domain_from_id @@ -83,6 +83,14 @@ def check(event, auth_events, do_sig_check=True, do_size_check=True): 403, "Creation event's room_id domain does not match sender's" ) + + room_version = event.content.get("room_version", "1") + if room_version not in KNOWN_ROOM_VERSIONS: + raise AuthError( + 403, + "room appears to have unsupported version %s" % ( + room_version, + )) # FIXME logger.debug("Allowing! %s", event) return -- cgit 1.4.1