Forgot to Check Wether if the IBC Packet Comes From axelar chain when send is DefaultGMPAddress

[Hellobloc]

In the following code, when the sender of the IBC package is DefaultGMPAddress, and a special memoPayload will be added and a special event will append. But it is not checked whether the peer chain is axelar. Considering that anyone can establish an IBC connection with their own chain, it means that the sender here is not trustworthy, and the safest way is to add an additional ChannelID check in addition to the DefaultGMPAddress check.

if strings.EqualFold(ftData.Sender, gmp.DefaultGMPAddress) {
		events = append(events, "Axelar GMP")
		mh.isGMP = true
		gmpMessage, err := gmp.ParseMemo(*ctx, mh.received, mh.memo, mh.receiver)
		if err != nil {
			logger.Debug("Can't parse the gmp memo", "err", err)
			return events, errMemoValidation{err}
		}
		memoPayload = gmpMessage.Payload
	} 

umee/x/uibc/uics20/memo_handler.go

Lines 63 to 72 in 94e1b7d

	if strings.EqualFold(ftData.Sender, gmp.DefaultGMPAddress) {
	events = append(events, "Axelar GMP")
	mh.isGMP = true
	gmpMessage, err := gmp.ParseMemo(*ctx, mh.received, mh.memo, mh.receiver)
	if err != nil {
	logger.Debug("Can't parse the gmp memo", "err", err)
	return events, errMemoValidation{err}
	}
	memoPayload = gmpMessage.Payload
	} else {

[Hellobloc]

@gsk967