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Bleedover of services

Scheduled Pinned Locked Moved Firewalling
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  • C Offline
    criley @johnpoz
    last edited by Jun 2, 2022, 5:44 PM

    @johnpoz That is why I am so confused. I checked and I do not have a deny all rule on the Wan side, I do have the Block private networks rule, the Block bogon networks, then a rule to allow ICMP and then I start with individual port openings where I open FTP, HTTP, HTTPS, etc.

    This firewall has been running for years and I am just wondering if there is a rule that was dropped over that period or was lost in a upgrade.

    I am running all of my scans from a entirely different network that should not have any elevated privileges.

    Any assistance is greatly appreciated as I got bosses breathing down my neck.

    S J 2 Replies Last reply Jun 2, 2022, 5:58 PM Reply Quote 0
    • S Offline
      SteveITS Rebel Alliance @criley
      last edited by Jun 2, 2022, 5:58 PM

      @criley LAN has "allow to all" rules by default. All other interfaces have no rules, so the default deny rule applies and all traffic gets dropped unless allowed.

      Do you have any WAN rules or NAT rules allowing ports 8081 or 8443?

      In pfBlocker DNSBL settings do you have "Web Server Interface" set to WAN?

      You can view active rules: https://docs.netgate.com/pfsense/en/latest/firewall/pf-ruleset.html

      Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
      When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
      Upvote 👍 helpful posts!

      1 Reply Last reply Reply Quote 0
      • J Online
        johnpoz LAYER 8 Global Moderator @criley
        last edited by Jun 2, 2022, 6:17 PM

        @criley do you have any rules in floating? Can you post up your wan rules..

        As mentioned the default is deny, it is not shown.. If there is no allow rule on wan, or in floating then unsolicited traffic is denied by default.

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 25.07.1 | Lab VMs 2.8.1, 25.07.1

        C 1 Reply Last reply Jun 2, 2022, 6:52 PM Reply Quote 0
        • C Offline
          criley @johnpoz
          last edited by Jun 2, 2022, 6:52 PM

          @johnpoz I am not sure how to post just the WAN rules so I zipped up and attached both the firewall and nat rules. I appreciate you taking a look and hopefully pointing me into the right direction.

          firewall-rules.zip

          J 1 Reply Last reply Jun 2, 2022, 6:54 PM Reply Quote 0
          • J Online
            johnpoz LAYER 8 Global Moderator @criley
            last edited by Jun 2, 2022, 6:54 PM

            @criley said in Bleedover of services:

            I am not sure how to post just the WAN rules

            simple screen shot

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
            Please don't Chat/PM me for help, unless mod related
            SG-4860 25.07.1 | Lab VMs 2.8.1, 25.07.1

            C 1 Reply Last reply Jun 2, 2022, 7:38 PM Reply Quote 0
            • C Offline
              criley @johnpoz
              last edited by Jun 2, 2022, 7:38 PM

              @johnpoz Here we go....
              firewall.png

              J 1 Reply Last reply Jun 2, 2022, 7:43 PM Reply Quote 0
              • J Online
                johnpoz LAYER 8 Global Moderator @criley
                last edited by Jun 2, 2022, 7:43 PM

                @criley do you have anything floating tab..

                An intelligent man is sometimes forced to be drunk to spend time with his fools
                If you get confused: Listen to the Music Play
                Please don't Chat/PM me for help, unless mod related
                SG-4860 25.07.1 | Lab VMs 2.8.1, 25.07.1

                C 1 Reply Last reply Jun 2, 2022, 7:55 PM Reply Quote 0
                • C Offline
                  criley @johnpoz
                  last edited by Jun 2, 2022, 7:55 PM

                  @johnpoz Here you go

                  floating.png

                  J 1 Reply Last reply Jun 2, 2022, 8:03 PM Reply Quote 0
                  • J Online
                    johnpoz LAYER 8 Global Moderator @criley
                    last edited by johnpoz Jun 2, 2022, 8:09 PM Jun 2, 2022, 8:03 PM

                    @criley well you got any any rule from anything NA

                    bad.jpg

                    And what are those rules 80 and 443 that don't show any interface? Pretty sure those would allow on any interface.. From looking at the rule in the zip you sent.

                    pass inet proto tcp from any to any port = http flags S/SA keep state label "USER_RULE: Global HTTP" ridentifier 1472233311
                    

                    An intelligent man is sometimes forced to be drunk to spend time with his fools
                    If you get confused: Listen to the Music Play
                    Please don't Chat/PM me for help, unless mod related
                    SG-4860 25.07.1 | Lab VMs 2.8.1, 25.07.1

                    C 1 Reply Last reply Jun 2, 2022, 8:49 PM Reply Quote 0
                    • C Offline
                      criley @johnpoz
                      last edited by Jun 2, 2022, 8:49 PM

                      @johnpoz Those two rules that you pointed out were put their by pfBlockerNG. I have disabled them and will retest.

                      J 1 Reply Last reply Jun 2, 2022, 9:05 PM Reply Quote 0
                      • J Online
                        johnpoz LAYER 8 Global Moderator @criley
                        last edited by Jun 2, 2022, 9:05 PM

                        @criley well your using pfblocker wrong then ;) It only does what you tell it to do.. But a floating quick rule would be evaluated before any rules on your wan interface.

                        An intelligent man is sometimes forced to be drunk to spend time with his fools
                        If you get confused: Listen to the Music Play
                        Please don't Chat/PM me for help, unless mod related
                        SG-4860 25.07.1 | Lab VMs 2.8.1, 25.07.1

                        C 1 Reply Last reply Jun 2, 2022, 9:09 PM Reply Quote 0
                        • C Offline
                          criley @johnpoz
                          last edited by Jun 2, 2022, 9:09 PM

                          @johnpoz I went ahead and disabled both of those as well as the global http that you mentioned and I am still able to see ssh as well as the 8081 and 8443 both of which are from PFBlocker. Like I said the thing that really makes me crazy is why ssh still shows and when I try to ssh to the servers ip it drops me at the firewall ssh prompt.

                          S 1 Reply Last reply Jun 2, 2022, 9:22 PM Reply Quote 0
                          • S Offline
                            SteveITS Rebel Alliance @criley
                            last edited by Jun 2, 2022, 9:22 PM

                            @criley Did you have open states?
                            https://docs.netgate.com/pfsense/en/latest/troubleshooting/firewall.html#new-rules-are-not-applied

                            What are the NAT rules for port 22?

                            pfBlocker blocks are generally added to LAN (outbound) or WAN (inbound) and not floating rules which can appear unpredictable to those not familiar with them.
                            https://docs.netgate.com/pfsense/en/latest/nat/process-order.html#floating-rules-notes
                            https://docs.netgate.com/pfsense/en/latest/firewall/floating-rules.html

                            Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                            When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
                            Upvote 👍 helpful posts!

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