Re: Something may wrong with my configuration, someone can help me???Please tell where my configuration was wrong!

I don’t see binder configuration from you snort.lua file. Try to add:

wizard = default_wizard

From: Snort-users <[email protected]> on behalf of wuhenzhiyue via Snort-users <[email protected]>
Date: Monday, December 6, 2021 at 1:20 PM
To: [email protected] <[email protected]>
Subject: [Snort-users] Something may wrong with my configuration, someone can help me???Please tell where my configuration was wrong!
Hello anybody
    When i used snort 3.1.0.0 or 3.1.10.0 to capture file or match file_type with ftp and NFQUEUE in inline mode, it don't work! I don't know why. There is no any error., i also tried to get file from http pcap, but nothing happened. This's my usage and configs which deferent from default:
    1. iptabes config:
        iptables -t mangle -A INPUT -p tcp -j NFQUEUE
    2. ftp server in my host(just input without forward):
        vsfpt
    3. start snort command:
        snort -Q --daq nfq --daq-var queue_maxlen=655350 -c /usr/local/etc/snort/snort.lua --tweaks security -A alert_fast -R /.../local.rules --wall-all -l /home/../snortLog -v
    4. local.rules config:
        .......
        alert tcp any any <> any any (msg: "Test.... "; file_type: "RAR"; sid: 30; rev: 1;)
        alert tcp any any <> any any (msg: "1111111111"; service: ftp-data; ftp_data; file_type: "RAR"; sid: 31; rev: 1)
        ......
    5. snort.lua config:
active = {device = "ens33", }
detection = {pcre_override = true, pcre_enable = true,}

trace = {
    output = stdout,
    modules = {
        file_id = { all = 1, }
    }
}
stream = {}
stream.file_cache = {
    cap_weight = 65525,
    idle_timeout = 180
}

stream_ip = {}
stream_tcp = {}
stream_udp = {}
stream_icmp = {}
stream_user = {}
stream_file = {upload = true}
......
http_inspect = {}
http2_inspect = {}
......
normalizer = {
   ip4 = {base = false},
   tcp = {ips = true, ecn = 'stream'}
}
......
telnet = {
    encryted_traffic = true,
    chech_encryted = true,
    normalize = true
}
dce_smb = {
    smb_file_inspection = 'on',
    smb_file_depth = 0,
}
......
ftp_server = default_ftp_server
ftp_client = {}
ftp_data = {}

file_id = {
   enable_signature = true,
   enable_type = true,
   enable_capture = true,

   trace_type = true,
   trace_signature = true,
   trace_stream = true,

   --include('file_magic.lua') is configured by defualt
   file_rules = file_magic,
   file_policy = {
       {when = {file_type_id = 21}, use = {verdict = 'log', enable_file_capture = true}},
      {when = {file_type_id = 30}, use = {verdict = 'log', enable_file_capture = true}},
      {when = {file_type_id = 320}, use = {verdict = 'log', enable_file_capture = true}}
    }

  --defualt
  type_depth = 56384,
  signature_depth = 10485760,
  max_files_cashed = 65535,

  show_data_depth = 1000,
  capture_memcap = 100,
  capture_max_size = 10485760,
}
......
ips = {
  mode = 'inline'.
  variables = default_variables
}
reject = {reset = "both", control = "all"}
......
alert_fast = {file = true}
alert_syslog = {
  facility = 'user',
  level = 'warning'
}

log_codecs = {file = true}
log_hext = {file = true, raw = true}
file_log = {
  log_pkt_time = true,
  log_sys_time = false
}

  6. security.lua config:
  arp_spoof = nil
  ftp_server.check_encrypted = true
  detection = {
     pcre_match_limit = 3500,
     pcre_match_recursion = 3500
   }
  ........
  http_inspect.unzip = true
  ......
  port_scan = nil
  .......
  stream_ip.min_frag_length = 100
  stream_ip.max_overlaps = 0
  stream_ip.max_frags = 8192
  stream_ip.policy = linux
  stream_ip.session_timeout = 30
  stream_ip.min_ttl = 1
  stream_ip.min_frag_length = 0

  stream.ip_frags_only = false
  stream.held_packet_timeout = 1000
  stream_max_flows = 476288
  stream_pruning_timeout = 30

  stream_tcp.overla_limit = 0
  stream_tcp.max_pdu = 4380
  stream_tcp.max_window = 0
  stream_tcp.track_only = false
  stream_tcp.policy = linux
  stream_tcp.show_rebuilt_packets = true
  stream_tcp.reassemble_async = true

  stream_user.session_timeout = 30

    stream.ip_cache = {cap_weight = 11000, idle_timeout = 180 }
    stream.tcp_cache = {cap_weight = 65535, idle_timeout = 3600}
stream.ip_cache = {cap_weight = 11000, idle_timeout = 180 }
    stream.file_cache = {cap_weight = 64, idle_timeout = 180 }
    stream_tcp.queue_limit = {max_bytes = 10485760, max_segments = 2621}
    stream_tcp.small_segments = {count = 3, maximum_size = 150}
......
Best regards ,
Weiran

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