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    Snort 2.9.2.3 pkg v. 2.4.2 Issues

    Scheduled Pinned Locked Moved pfSense Packages
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    • F
      fragged
      last edited by

      I think that line about DAQ has been there for a long long time. It should still work just fine.

      1 Reply Last reply Reply Quote 0
      • H
        HOD
        last edited by

        I did a complete reinstall of snort (10min ago) and i have the same error of my last post.

        snort[23088]: FATAL ERROR: s2c_parse_load_wl() => Invalid data in whitelist file: Invalid argument

        @ermal:

        For all the others having issues with blocking please whenever you have system log of 'unable to parse', get the file under the /usr/local/etc/snort/snort_$iface*/$whitelistname and post it here.

        cat /usr/local/etc/snort/snort_18407_pppoe0/whitlsit
        suppress gen_id 119, sig_id 2
        suppress gen_id 119, sig_id 31
        suppress gen_id 119, sig_id 32
        suppress gen_id 120, sig_id 3
        suppress gen_id 120, sig_id 6
        suppress gen_id 120, sig_id 8
        suppress gen_id 120, sig_id 10
        suppress gen_id 122, sig_id 26
        suppress gen_id 137, sig_id 1

        greetz HOD

        EDIT: my System 2.0.1-RELEASE (amd64) Snort 2.9.2.3 pkg v. 2.4.2

        1 Reply Last reply Reply Quote 0
        • C
          Cino
          last edited by

          @ermal:

          All that are expiriencing this ioctl issue can confirm that are on 2.1?

          2.1-BETA0 (i386)
          built on Tue Jul 3 17:55:18 EDT 2012
          FreeBSD 8.3-RELEASE-p3

          I'm about to upgrade to the latest snap here shortly

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          • M
            mschiek01
            last edited by

            @ermal:

            @Cino:

            snort dies when blocking is enabled

            
Jul 12 20:28:37 	snort[4131]: FATAL ERROR: s2c_pf_block() => ioctl() DIOCRADDADDRS: Inappropriate ioctl for device
Jul 12 20:28:37 	snort[4131]: FATAL ERROR: s2c_pf_block() => ioctl() DIOCRADDADDRS: Inappropriate ioctl for device


            
1 	1 	TCP 	GPL SHELLCODE x86 inc ebx NOOP 	Executable Code was Detected 	31.13.69.42 	80 	-> 	68.172.210.112 	56586 	1:1390:6 	07/12-20:28:37

            All that are expiriencing this ioctl issue can confirm that are on 2.1?

            Ermal

            I have not seen this error at all. I am on amd64 2.01

            However snort does stop with blocking enabled here is the latest:

            Jul 13 01:33:29 kernel: pid 56726 (snort), uid 0: exited on signal 11
            Jul 13 01:33:29 snort[56726]: [1:2001219:18] ET SCAN Potential SSH Scan [Classification: Attempted Information Leak] [Priority: 2] {TCP}
            Jul 13 01:33:29 snort[56726]: [1:2001219:18] ET SCAN Potential SSH Scan [Classification: Attempted Information Leak] [Priority: 2] {TCP}
            Jul 13 01:07:04 kernel: pid 11612 (snort), uid 0: exited on signal 11
            Jul 13 01:07:04 snort[11612]: [1:2406223:287] ET RBN Known Russian Business Network IP UDP (112) [Classification: Misc Attack] [Priority: 2] {UDP}
            Jul 13 01:07:04 snort[11612]: [1:2406223:287] ET RBN Known Russian Business Network IP UDP (112) [Classification: Misc Attack]

            Snort is running on two external interfaces.

            Here is the log:

            [] [1:2001219:18] ET SCAN Potential SSH Scan []
            [Classification: Attempted Information Leak] [Priority: 2]
            07/13-01:33:29.677163 211.147.3.19:57698 -> nnn.nnn.4.162:22
            TCP TTL:109 TOS:0x0 ID:31314 IpLen:20 DgmLen:48
            *****S Seq: 0x3DBFE47C  Ack: 0x678A7406  Win: 0xFFFF  TcpLen: 28
            TCP Options (4) => MSS: 1460 NOP NOP SackOK
            [Xref => http://doc.emergingthreats.net/2001219][Xref => http://en.wikipedia.org/wiki/Brute_force_attack]

            [] [1:2406223:287] ET RBN Known Russian Business Network IP UDP (112) []
            [Classification: Misc Attack] [Priority: 2]
            07/13-01:07:04.034851 204.124.182.253:53 -> nn.nn.107.97:25021
            UDP TTL:52 TOS:0x20 ID:0 IpLen:20 DgmLen:71 DF
            Len: 43
            [Xref => http://doc.emergingthreats.net/bin/view/Main/RussianBusinessNetwork]

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            • F
              Fesoj
              last edited by

              ermal,

              I'd rather fixed the ioctl problem, but the clearing issue is within my capabilities. See whether you can live with this (/usr/local/www/snort/snort_alerts.php, line 82ff):

              if ($_GET['action'] == "clear" || $_POST['delete']) {
  $log_this = FALSE;
  $fname = '/tmp/snort_alerts_clear.txt';
  foreach ($a_instance as $id => $instance) {
    $snort_uuid_loop = $instance['uuid'];
    $if_real_loop = snort_get_real_interface($instance['interface']);
    if ($log_this) {
      file_put_contents($fname, "if_real = $if_real_loop\r\nsnort_uuid = $snort_uuid_loop\r\n", FILE_APPEND);
    }
    if (file_exists("/var/log/snort/snort_{$if_real_loop}{$snort_uuid_loop}/alert")) {
      if ($log_this) {
        file_put_contents($fname, "alert file = /var/log/snort/snort_{$if_real_loop}{$snort_uuid_loop}/alert\r\n\r\n", FILE_APPEND);
      }
      conf_mount_rw();
      snort_post_delete_logs($snort_uuid_loop);
      @file_put_contents("/var/log/snort/snort_{$if_real_loop}{$snort_uuid_loop}/alert", "");
      /* XXX: This is needed is snort is run as snort user */
      //mwexec('/usr/sbin/chown snort:snort /var/log/snort/*', true);
      mwexec('/bin/chmod 660 /var/log/snort/*', true);
      mwexec("/bin/pkill -HUP -F {$g['varrun_path']}/snort_{$if_real_loop}{$snort_uuid_loop}.pid -a");
      conf_mount_ro();
    }
  }
  header("Location: /snort/snort_alerts.php?instance={$instanceid}");
  exit;
}
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              • D
                dwood
                last edited by

                Ermal, with regard to post #42, what config file are you looking for?  If you can provide a path/name I'll post the file.  I did install 2.4.2 with previous save settings toggled off.  I also ran  find /* | grep -i snort | xargs rm -rv to remove any snort references after removing the previous version.  This is as clean an install I can figure out :-)

                The error I posted occurs when attempting to start snort, either manually or after an update:

                Jul 12 21:34:54    php: /snort/snort_interfaces.php: Interface Rule START for CABLE(re1)…
                Jul 12 21:34:54    snort[8220]: FATAL ERROR: /usr/local/etc/snort/snort_7680_re1/snort.conf(101) Maximum number of loaded libriaries of this dynamic library type exceeded: 16.
                Jul 12 21:34:54    snort[8220]: FATAL ERROR: /usr/local/etc/snort/snort_7680_re1/snort.conf(101) Maximum number of loaded libriaries of this dynamic library type exceeded: 16.

                Other than this error..corrected by unchecking two .so rules, 2.4.2 has been running and blocking fine on two live AMD64 2.01 installations.

                EDIT:  It looks like both installations of 2.4.2 failed to start after a daily scheduled update.  Starting interfaces manually worked OK.

                Cheers,
                Dennis.

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                • E
                  eri--
                  last edited by

                  Please reinstall again!
                  You need a new snort binary for the alerts to be displayed correctly.

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                  • F
                    fragged
                    last edited by

                    Snort won't start after a reinstallation.

                    
[2.0.1-RELEASE][admin@pfsense.localdomain]/root(33): /usr/local/bin/snort
/libexec/ld-elf.so.1: /usr/local/lib/libdnet.1: unsupported file layout

                    I've tried to pkg_delete libdnet and install snort again, but it still won't work. Is the package broken?

                    1 Reply Last reply Reply Quote 0
                    • M
                      mdima
                      last edited by

                      Also this: after an update, at the first event it looks crashing:

                      Jul 14 12:08:36	kernel: pid 47584 (snort), uid 0: exited on signal 11
Jul 14 12:08:36	snort[47584]: [1:2404102:2763] ET CNC Zeus/Spyeye/Palevo Tracker Reported CnC Server TCP (group 2) [Classification: A Network Trojan was Detected] [Priority: 1] {TCP} 212.239.73.15:22445 -> 141.8.224.61:25
Jul 14 12:08:36	snort[47584]: [1:2404102:2763] ET CNC Zeus/Spyeye/Palevo Tracker Reported CnC Server TCP (group 2) [Classification: A Network Trojan was Detected] [Priority: 1] {TCP} 212.239.73.15:22445 -> 141.8.224.61:25

                      Ciao,
                      Michele

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                      • E
                        eri--
                        last edited by

                        mdima nothing else on the logs?

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                        • J
                          judex
                          last edited by

                          I do not exactly know, if this is a feature or a bug:

                          When I leave Home NEt set as default in the GUI the Home Net variable is automagically set in the interfaces snort.conf.
                          There the whole subnet of the WAN interface gets added. Not only my WAN IP and the gateway, but the subnet with a 24 netmask. That can't be by design!?!

                          Greetings, Judex

                          2.1-RELEASE (amd64)
                          built on Wed Sep 11 18:17:48 EDT 2013
                          FreeBSD 8.3-RELEASE-p11

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                          • D
                            dwood
                            last edited by

                            reinstalling 2.4.2, snort fails to start:

                            *** Welcome to pfSense 2.0.1-RELEASE-pfSense (amd64) on pfsense ***

                            [2.0.1-RELEASE][admin@pfsense.localdomain]/root(1): /usr/local/bin/snort
                            /libexec/ld-elf.so.1: /usr/local/lib/libdnet.1: unsupported file layout

                            Also, all .so rules were missing on this version, so not available to select.

                            Cheers,
                            Dennis.

                            1 Reply Last reply Reply Quote 0
                            • M
                              mdima
                              last edited by

                              @ermal:

                              Please reinstall again!
                              You need a new snort binary for the alerts to be displayed correctly.

                              Hi Ermal, nothing else AFAIK. If you want I can send you in private the full system log where that happened (I just saved it for reference).

                              Thanks,
                              Michele

                              1 Reply Last reply Reply Quote 0
                              • E
                                eri--
                                last edited by

                                Please reinstall again in 30 minutes.
                                You need a new binary again.

                                I think i fixed the alert_pf issues with the ioctl.

                                1 Reply Last reply Reply Quote 0
                                • S
                                  simby
                                  last edited by

                                  where is all snot rules? I have only 10-15 and i have premium account :(

                                  1 Reply Last reply Reply Quote 0
                                  • E
                                    eri--
                                    last edited by

                                    @judex:

                                    I do not exactly know, if this is a feature or a bug:

                                    When I leave Home NEt set as default in the GUI the Home Net variable is automagically set in the interfaces snort.conf.
                                    There the whole subnet of the WAN interface gets added. Not only my WAN IP and the gateway, but the subnet with a 24 netmask. That can't be by design!?!

                                    Greetings, Judex

                                    Judex, it seems it was there since the beginning like this.
                                    Removed the subnet cause i do not think is right as well.

                                    Actually i am not sure if all the other interfaces ips need to be there apart the one snort is listening.

                                    1 Reply Last reply Reply Quote 0
                                    • E
                                      eri--
                                      last edited by

                                      @HOD:

                                      I did a complete reinstall of snort (10min ago) and i have the same error of my last post.

                                      snort[23088]: FATAL ERROR: s2c_parse_load_wl() => Invalid data in whitelist file: Invalid argument

                                      @ermal:

                                      For all the others having issues with blocking please whenever you have system log of 'unable to parse', get the file under the /usr/local/etc/snort/snort_$iface*/$whitelistname and post it here.

                                      cat /usr/local/etc/snort/snort_18407_pppoe0/whitlsit
                                      suppress gen_id 119, sig_id 2
                                      suppress gen_id 119, sig_id 31
                                      suppress gen_id 119, sig_id 32
                                      suppress gen_id 120, sig_id 3
                                      suppress gen_id 120, sig_id 6
                                      suppress gen_id 120, sig_id 8
                                      suppress gen_id 120, sig_id 10
                                      suppress gen_id 122, sig_id 26
                                      suppress gen_id 137, sig_id 1

                                      greetz HOD

                                      EDIT: my System 2.0.1-RELEASE (amd64) Snort 2.9.2.3 pkg v. 2.4.2

                                      This should have been fixed also.
                                      HOD can yo uconfirm that you have the same name for the suppress and whitelist selected?

                                      1 Reply Last reply Reply Quote 0
                                      • D
                                        dhatz
                                        last edited by

                                        Ermal, I'm happy to finally see you working on the Snort package.

                                        Could you provide some info about how Snort interfaces with PF, in order to provide IPS functionality (ie to auto block offending IPs ) ? When I last checked some weeks ago, it seemed that both SnortSam and your enhanced version of spoink were enabled.

                                        1 Reply Last reply Reply Quote 0
                                        • C
                                          Cino
                                          last edited by

                                          @simby:

                                          where is all snot rules? I have only 10-15 and i have premium account :(

                                          i dont have a premium account but we are missing a lot of rules and all the shared .so ones.

                                          1 Reply Last reply Reply Quote 0
                                          • M
                                            mdima
                                            last edited by

                                            Hi Ermal,
                                              just updated. If I have again problems I will report it.

                                            Btw, I confirm that I lost half of the snort.org rules after the update.

                                            Thanks,
                                            Michele

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