Lock for aaa.bbb.ccc.dd does not work, if aaa.bbb.ccc.ddd is already locked?

[stiinek]

Hello, IDDS have already hard locked 176.113.115.151. Intrusion from 176.113.115.15 detected, after 10 attempts IP listed as hard locked in Current locks tab, but no line about hard lock in Security log tab, and also IP not added to FW rule.

Same situation also with pair 92.63.194.36 and 92.63.194.3

[maxemilian]

Is Windows Firewall running?

How many IP addresses are already locked out?

Max

Von: stiinek [email protected] Gesendet: Mittwoch, 8. April 2020 11:39 An: EFTEC/Cyberarms [email protected] Cc: Subscribed [email protected] Betreff: [EFTEC/Cyberarms] Lock for aaa.bbb.ccc.dd does not work, if aaa.bbb.ccc.ddd is already locked? (#13)

Hello, IDDS have already hard locked 176.113.115.151. Intrusion from 176.113.115.15 detected, after 10 attempts IP listed as hard locked in Current locks tab, but no line about hard lock in Security log tab, and also IP not added to FW rule.

Same situation also with pair 92.63.194.36 and 92.63.194.3

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[stiinek]

Yes, FW is running, and other new IPs are blocked correctly. Pair 176.113.115.151/176.113.115.15 spotted on two different machines, 300 hard locks on first, 600 on second.

[JuanmaSP]

Hi, i confirm that issue. I think the mistake is in the function IsLocked To fix it we have to change how we check if an address is already blocked

somethig like this

    internal bool IsLocked(string ipAddress) {
        string AddressList;
        try {
            INetFwRule rule = GetRule(GetRuleName("BlockAttacker", 0));
            AddressList = "," + rule.RemoteAddresses + ",";
            return AddressList.Contains("," + ipAddress + ",");
            //return rule.RemoteAddresses.Contains(ipAddress);
        } catch (Exception ex) {
            System.Diagnostics.EventLog.WriteEntry("IsLocked encountered an error: ", ex.Message, System.Diagnostics.EventLogEntryType.Error);
        }
        return false;
    }