Merge pull request #15211 from Security-Onion-Solutions/bravo

Suricata 8.0.2
2025-12-07 17:52:46 +01:00 · 2025-11-10 17:09:43 -05:00
parent dfef7036ce 245ceb2d49
commit c9153617be
13 changed files with 151 additions and 92 deletions
--- a/salt/bpf/pcap.map.jinja
+++ b/salt/bpf/pcap.map.jinja
@@ -1,4 +1,7 @@
 {% from 'vars/globals.map.jinja' import GLOBALS %}
+{% set PCAP_BPF_STATUS = 0  %}
+{% set STENO_BPF_COMPILED = "" %}
+
 {% if GLOBALS.pcap_engine == "TRANSITION" %}
 {%   set PCAPBPF = ["ip and host 255.255.255.1 and port 1"] %}
 {% else %}
@@ -8,3 +11,11 @@
 {{   MACROS.remove_comments(BPFMERGED, 'pcap') }}
 {%   set PCAPBPF = BPFMERGED.pcap %}
 {% endif %}
+
+{% if PCAPBPF %}
+   {% set PCAP_BPF_CALC = salt['cmd.run_all']('/usr/sbin/so-bpf-compile ' ~ GLOBALS.sensor.interface ~ ' ' ~ PCAPBPF|join(" "), cwd='/root') %}
+   {% if PCAP_BPF_CALC['retcode'] == 0 %}
+      {% set PCAP_BPF_STATUS = 1 %}
+      {% set STENO_BPF_COMPILED =  ",\\\"--filter=" + PCAP_BPF_CALC['stdout'] + "\\\""  %}
+   {% endif %}
+{% endif %}
--- a/salt/bpf/soc_bpf.yaml
+++ b/salt/bpf/soc_bpf.yaml
@@ -1,11 +1,11 @@
 bpf:
  pcap:
-    description: List of BPF filters to apply to Stenographer.
+    description: List of BPF filters to apply to the PCAP engine.
    multiline: True
    forcedType: "[]string"
    helpLink: bpf.html
  suricata:
-    description: List of BPF filters to apply to Suricata.
+    description: List of BPF filters to apply to Suricata. This will apply to alerts and, if enabled, to metadata and PCAP logs generated by Suricata.
    multiline: True
    forcedType: "[]string"
    helpLink: bpf.html
--- a/salt/bpf/suricata.map.jinja
+++ b/salt/bpf/suricata.map.jinja
@@ -1,7 +1,16 @@
+{% from 'vars/globals.map.jinja' import GLOBALS %}
 {% import_yaml 'bpf/defaults.yaml' as BPFDEFAULTS %}
 {% set BPFMERGED = salt['pillar.get']('bpf', BPFDEFAULTS.bpf, merge=True) %}
+{% set SURICATA_BPF_STATUS = 0 %}
 {% import 'bpf/macros.jinja' as MACROS %}

 {{ MACROS.remove_comments(BPFMERGED, 'suricata') }}

 {% set SURICATABPF = BPFMERGED.suricata %}
+
+{% if SURICATABPF %}
+   {% set SURICATA_BPF_CALC = salt['cmd.run_all']('/usr/sbin/so-bpf-compile ' ~ GLOBALS.sensor.interface ~ ' ' ~ SURICATABPF|join(" "), cwd='/root') %}
+   {% if SURICATA_BPF_CALC['retcode'] == 0 %}
+      {% set SURICATA_BPF_STATUS = 1 %}
+   {% endif %}
+{% endif %}
--- a/salt/bpf/zeek.map.jinja
+++ b/salt/bpf/zeek.map.jinja
@@ -1,7 +1,16 @@
+{% from 'vars/globals.map.jinja' import GLOBALS %}
 {% import_yaml 'bpf/defaults.yaml' as BPFDEFAULTS %}
 {% set BPFMERGED = salt['pillar.get']('bpf', BPFDEFAULTS.bpf, merge=True) %}
+{% set ZEEK_BPF_STATUS = 0 %}
 {% import 'bpf/macros.jinja' as MACROS %}

 {{ MACROS.remove_comments(BPFMERGED, 'zeek') }}

 {% set ZEEKBPF = BPFMERGED.zeek %}
+
+{% if ZEEKBPF %}
+   {% set ZEEK_BPF_CALC = salt['cmd.run_all']('/usr/sbin/so-bpf-compile ' ~ GLOBALS.sensor.interface ~ ' ' ~ ZEEKBPF|join(" "), cwd='/root') %}
+   {% if ZEEK_BPF_CALC['retcode'] == 0 %}
+      {% set ZEEK_BPF_STATUS = 1 %}
+   {% endif %}
+{% endif %}
--- a/salt/common/tools/sbin/so-bpf-compile
+++ b/salt/common/tools/sbin/so-bpf-compile
@@ -29,9 +29,26 @@ fi

 interface="$1"
 shift
-tcpdump -i $interface -ddd $@ | tail -n+2 |
-while read line; do
+
+# Capture tcpdump output and exit code
+tcpdump_output=$(tcpdump -i "$interface" -ddd "$@" 2>&1)
+tcpdump_exit=$?
+
+if [ $tcpdump_exit -ne 0 ]; then
+  echo "$tcpdump_output" >&2
+  exit $tcpdump_exit
+fi
+
+# Process the output, skipping the first line
+echo "$tcpdump_output" | tail -n+2 | while read -r line; do
  cols=( $line )
-  printf "%04x%02x%02x%08x" ${cols[0]} ${cols[1]} ${cols[2]} ${cols[3]}
+  printf "%04x%02x%02x%08x" "${cols[0]}" "${cols[1]}" "${cols[2]}" "${cols[3]}"
 done
+
+# Check if the pipeline succeeded
+if [ "${PIPESTATUS[0]}" -ne 0 ]; then
+  exit 1
+fi
+
 echo ""
+exit 0
--- a/salt/pcap/config.sls
+++ b/salt/pcap/config.sls
@@ -8,12 +8,9 @@

 {% from 'vars/globals.map.jinja' import GLOBALS %}
 {% from "pcap/config.map.jinja" import PCAPMERGED %}
-{% from 'bpf/pcap.map.jinja' import PCAPBPF %}
-
-{% set BPF_COMPILED = "" %}
+{% from 'bpf/pcap.map.jinja' import PCAPBPF, PCAP_BPF_STATUS, PCAP_BPF_CALC, STENO_BPF_COMPILED %}

 # PCAP Section
-
 stenographergroup:
  group.present:
    - name: stenographer
@@ -40,18 +37,12 @@ pcap_sbin:
    - group: 939
    - file_mode: 755

-{% if PCAPBPF %}
-   {% set BPF_CALC = salt['cmd.script']('salt://common/tools/sbin/so-bpf-compile', GLOBALS.sensor.interface + ' ' + PCAPBPF|join(" "),cwd='/root') %}
-   {% if BPF_CALC['stderr'] == "" %}
-      {% set BPF_COMPILED =  ",\\\"--filter=" + BPF_CALC['stdout'] + "\\\""  %}
-   {% else  %}
-
-bpfcompilationfailure:
+{% if PCAPBPF and not PCAP_BPF_STATUS %}
+stenoPCAPbpfcompilationfailure:
  test.configurable_test_state:
   - changes: False
   - result: False
-   - comment: "BPF Compilation Failed - Discarding Specified BPF"
-   {% endif %}
+  - comment: "BPF Syntax Error - Discarding Specified BPF. Error: {{ PCAP_BPF_CALC['stderr'] }}"
 {% endif %}

 stenoconf:
@@ -64,7 +55,7 @@ stenoconf:
    - template: jinja
    - defaults:
        PCAPMERGED: {{ PCAPMERGED }}
-        BPF_COMPILED: "{{ BPF_COMPILED }}"
+        STENO_BPF_COMPILED: "{{ STENO_BPF_COMPILED }}"

 stenoca:
  file.directory:
--- a/salt/pcap/files/config.jinja
+++ b/salt/pcap/files/config.jinja
@@ -6,6 +6,6 @@
  , "Interface": "{{ pillar.sensor.interface }}"
  , "Port": 1234
  , "Host": "127.0.0.1"
-  , "Flags": ["-v", "--blocks={{ PCAPMERGED.config.blocks }}", "--preallocate_file_mb={{ PCAPMERGED.config.preallocate_file_mb }}", "--aiops={{ PCAPMERGED.config.aiops }}", "--uid=stenographer", "--gid=stenographer"{{ BPF_COMPILED }}]
+  , "Flags": ["-v", "--blocks={{ PCAPMERGED.config.blocks }}", "--preallocate_file_mb={{ PCAPMERGED.config.preallocate_file_mb }}", "--aiops={{ PCAPMERGED.config.aiops }}", "--uid=stenographer", "--gid=stenographer"{{ STENO_BPF_COMPILED }}]
  , "CertPath": "/etc/stenographer/certs"
 }
--- a/salt/suricata/config.sls
+++ b/salt/suricata/config.sls
@@ -7,9 +7,47 @@
 {% if sls.split('.')[0] in allowed_states %}

 {%   from 'vars/globals.map.jinja' import GLOBALS %}
-{%   from 'bpf/suricata.map.jinja' import SURICATABPF %}
 {%   from 'suricata/map.jinja' import SURICATAMERGED %}
-{%   set BPF_STATUS = 0  %}
+{%   from 'bpf/suricata.map.jinja' import SURICATABPF, SURICATA_BPF_STATUS, SURICATA_BPF_CALC %}
+
+suridir:
+  file.directory:
+    - name: /opt/so/conf/suricata
+    - user: 940
+    - group: 940
+
+{%   if GLOBALS.pcap_engine in ["SURICATA", "TRANSITION"] %}
+{%     from 'bpf/pcap.map.jinja' import PCAPBPF, PCAP_BPF_STATUS, PCAP_BPF_CALC %}
+# BPF compilation and configuration
+{%     if PCAPBPF and not PCAP_BPF_STATUS %}
+suriPCAPbpfcompilationfailure:
+  test.configurable_test_state:
+    - changes: False
+    - result: False
+    - comment: "BPF Syntax Error - Discarding Specified BPF. Error: {{ PCAP_BPF_CALC['stderr'] }}"
+{%     endif %}
+{%   endif %}
+
+# BPF applied to all of Suricata - alerts/metadata/pcap
+suribpf:
+  file.managed:
+    - name: /opt/so/conf/suricata/bpf
+    - user: 940
+    - group: 940
+   {% if SURICATA_BPF_STATUS %}
+    - contents: {{ SURICATABPF }}
+   {% else %}
+    - contents:
+      - ""
+   {% endif %}
+
+{%   if SURICATABPF and not SURICATA_BPF_STATUS %}
+suribpfcompilationfailure:
+  test.configurable_test_state:
+    - changes: False
+    - result: False
+    - comment: "BPF Syntax Error - Discarding Specified BPF. Error: {{ SURICATA_BPF_CALC['stderr'] }}"
+{%   endif %}

 # Add Suricata Group
 suricatagroup:
@@ -49,18 +87,11 @@ suricata_sbin_jinja:
    - file_mode: 755
    - template: jinja

-suridir:
-  file.directory:
-    - name: /opt/so/conf/suricata
-    - user: 940
-    - group: 940
-
 suriruledir:
  file.directory:
    - name: /opt/so/conf/suricata/rules
    - user: 940
    - group: 940
-    - makedirs: True

 surilogdir:
  file.directory:
@@ -136,32 +167,6 @@ suriclassifications:
    - user: 940
    - group: 940

-# BPF compilation and configuration
-{% if SURICATABPF %}
-   {% set BPF_CALC = salt['cmd.script']('salt://common/tools/sbin/so-bpf-compile', GLOBALS.sensor.interface + ' ' + SURICATABPF|join(" "),cwd='/root') %}
-   {% if BPF_CALC['stderr'] == "" %}
-      {% set BPF_STATUS = 1  %}
-   {% else  %}
-suribpfcompilationfailure:
-  test.configurable_test_state:
-   - changes: False
-   - result: False
-   - comment: "BPF Syntax Error - Discarding Specified BPF"
-   {% endif %}
-{% endif %}
-
-suribpf:
-  file.managed:
-    - name: /opt/so/conf/suricata/bpf
-    - user: 940
-    - group: 940
-   {% if BPF_STATUS %}
-    - contents: {{ SURICATABPF }}
-   {% else %}
-    - contents:
-      - ""
-   {% endif %}
-
 so-suricata-eve-clean:
  file.managed:
    - name: /usr/sbin/so-suricata-eve-clean
--- a/salt/suricata/defaults.yaml
+++ b/salt/suricata/defaults.yaml
@@ -34,7 +34,7 @@ suricata:
      threads: 1
      tpacket-v3: "yes"
      ring-size: 5000
-      block-size: 32768
+      block-size: 69632
      block-timeout: 10
      use-emergency-flush: "yes"
      buffer-size: 32768
@@ -97,6 +97,11 @@ suricata:
          - 4789
        TEREDO_PORTS:
          - 3544
+        SIP_PORTS:
+          - 5060
+          - 5061
+        GENEVE_PORTS:
+          - 6081
    default-log-dir: /var/log/suricata/
    stats:
      enabled: "yes"
@@ -134,14 +139,6 @@ suricata:
              header: X-Forwarded-For
      unified2-alert:
        enabled: "no"
-      http-log:
-        enabled: "no"
-        filename: http.log
-        append: "yes"
-      tls-log:
-        enabled: "no"
-        filename: tls.log
-        append: "yes"
      tls-store:
        enabled: "no"
      pcap-log:
@@ -157,9 +154,6 @@ suricata:
        totals: "yes"
        threads: "no"
        null-values: "yes"
-      syslog:
-        enabled: "no"
-        facility: local5
      drop:
        enabled: "no"
      file-store:
@@ -206,6 +200,9 @@ suricata:
          enabled: "yes"
          detection-ports:
            dp: 443
+          ja3-fingerprints: auto
+          ja4-fingerprints: auto
+          encryption-handling: track-only
        dcerpc:
          enabled: "yes"
        ftp:
@@ -255,19 +252,21 @@ suricata:
          libhtp:
             default-config:
               personality: IDS
-               request-body-limit: 100kb
-               response-body-limit: 100kb
-               request-body-minimal-inspect-size: 32kb
-               request-body-inspect-window: 4kb
-               response-body-minimal-inspect-size: 40kb
-               response-body-inspect-window: 16kb
+               request-body-limit: 100 KiB
+               response-body-limit: 100 KiB
+               request-body-minimal-inspect-size: 32 KiB
+               request-body-inspect-window: 4 KiB
+               response-body-minimal-inspect-size: 40 KiB
+               response-body-inspect-window: 16 KiB
               response-body-decompress-layer-limit: 2
               http-body-inline: auto
               swf-decompression:
-                 enabled: "yes"
+                 enabled: "no"
                 type: both
-                 compress-depth: 0
-                 decompress-depth: 0
+                 compress-depth: 100 KiB
+                 decompress-depth: 100 KiB
+               randomize-inspection-sizes: "yes"
+               randomize-inspection-range: 10
               double-decode-path: "no"
               double-decode-query: "no"
             server-config:
@@ -401,8 +400,12 @@ suricata:
      vxlan:
        enabled: true
        ports: $VXLAN_PORTS
-      erspan:
+      geneve:
        enabled: true
+        ports: $GENEVE_PORTS
+        max-layers: 16
+      recursion-level:
+        use-for-tracking: true
    detect:
      profile: medium
      custom-values:
@@ -422,7 +425,12 @@ suricata:
    spm-algo: auto
    luajit:
      states: 128
-
+    security:
+      lua:
+        allow-rules: false
+        max-bytes: 500000 
+        max-instructions: 500000
+        allow-restricted-functions: false
    profiling:
      rules:
        enabled: "yes"
--- a/salt/suricata/map.jinja
+++ b/salt/suricata/map.jinja
@@ -10,6 +10,12 @@

 {# before we change outputs back to list, enable pcap-log if suricata is the pcapengine #}
 {% if GLOBALS.pcap_engine in ["SURICATA", "TRANSITION"] %}
+
+{%   from 'bpf/pcap.map.jinja' import PCAPBPF, PCAP_BPF_STATUS %}
+{%   if PCAPBPF and PCAP_BPF_STATUS %}
+{%     do SURICATAMERGED.config.outputs['pcap-log'].update({'bpf-filter': PCAPBPF|join(" ")}) %}
+{%   endif %}
+
 {%   do SURICATAMERGED.config.outputs['pcap-log'].update({'enabled': 'yes'}) %}
 {#   move the items in suricata.pcap into suricata.config.outputs.pcap-log. these items were placed under suricata.config for ease of access in SOC #}
 {%   do SURICATAMERGED.config.outputs['pcap-log'].update({'compression': SURICATAMERGED.pcap.compression}) %}
--- a/salt/suricata/soc_suricata.yaml
+++ b/salt/suricata/soc_suricata.yaml
@@ -190,6 +190,8 @@ suricata:
        FTP_PORTS: *suriportgroup
        VXLAN_PORTS: *suriportgroup
        TEREDO_PORTS: *suriportgroup
+        SIP_PORTS: *suriportgroup
+        GENEVE_PORTS: *suriportgroup
    outputs:
      eve-log:
        types:
@@ -209,7 +211,7 @@ suricata:
                helpLink: suricata.html
      pcap-log:
        enabled:
-          description: This value is ignored by SO. pcapengine in globals takes precidence.
+          description: This value is ignored by SO. pcapengine in globals takes precedence.
          readonly: True
          helpLink: suricata.html
          advanced: True        
@@ -297,3 +299,10 @@ suricata:
        ports: 
          description: Ports to listen for. This should be a variable.    
          helpLink: suricata.html
+      geneve:
+        enabled:
+          description: Enable VXLAN capabilities.
+          helpLink: suricata.html
+        ports: 
+          description: Ports to listen for. This should be a variable.    
+          helpLink: suricata.html
--- a/salt/zeek/config.sls
+++ b/salt/zeek/config.sls
@@ -8,8 +8,7 @@

 {% from 'vars/globals.map.jinja' import GLOBALS %}
 {% from "zeek/config.map.jinja" import ZEEKMERGED %}
-{% from 'bpf/zeek.map.jinja' import ZEEKBPF %}
-{% set BPF_STATUS = 0  %}
+{% from 'bpf/zeek.map.jinja' import ZEEKBPF, ZEEK_BPF_STATUS, ZEEK_BPF_CALC %}

 # Add Zeek group
 zeekgroup:
@@ -158,18 +157,13 @@ zeekja4cfg:
    - user: 937
    - group: 939

-# BPF compilation and configuration
-{% if ZEEKBPF %}
-   {% set BPF_CALC = salt['cmd.script']('salt://common/tools/sbin/so-bpf-compile', GLOBALS.sensor.interface + ' ' + ZEEKBPF|join(" "),cwd='/root') %}
-   {% if BPF_CALC['stderr'] == "" %}
-       {% set BPF_STATUS = 1  %}
-  {% else  %}
+# BPF compilation failed
+{% if ZEEKBPF and not ZEEK_BPF_STATUS %}
 zeekbpfcompilationfailure:
  test.configurable_test_state:
    - changes: False
    - result: False
-    - comment: "BPF Syntax Error - Discarding Specified BPF"
-   {% endif %}
+    - comment: "BPF Syntax Error - Discarding Specified BPF. Error: {{ ZEEK_BPF_CALC['stderr'] }}"
 {% endif %}

 zeekbpf:
@@ -177,7 +171,7 @@ zeekbpf:
    - name: /opt/so/conf/zeek/bpf
    - user: 940
    - group: 940
-{% if BPF_STATUS %}
+{% if ZEEK_BPF_STATUS %}
    - contents: {{ ZEEKBPF }}
 {% else %}
    - contents: