update scripts to use layer format v4.0

Author: isaisabel

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changes staged on develop
 ## Improvements
 - Removed pre-ATT&CK domain from scripts to support migration of that content to enterprise tactics. See issue [#36](https://github.com/mitre-attack/attack-scripts/issues/36).
+- Updated scripts which produce layers to use v4.0 of the Navigator Layer Format. See issue [#47](https://github.com/mitre-attack/attack-scripts/issues/47).
 
 # v1.6 - 5 October 2020
 ## Improvements

scripts/diff_stix.py

@@ -487,7 +487,10 @@ def get_layers_dict(self):
 
             # build layer structure
             layer_json = {
-                "version": "3.0",
+                "versions": {
+                    "layer": "4.0",
+                    "navigator": "4.0"
+                },
                 "name": f"{thedate} {domainToDomainLabel[domain]} Updates",
                 "description": f"{domainToDomainLabel[domain]} updates for the {thedate} release of ATT&CK",
                 "domain": domainToLayerFileDomain[domain],

scripts/layers/samples/apt3_apt29_software.py

@@ -117,7 +117,10 @@ def color_lookup(usage):
     # layer struct
     return {
         "name": name,
-        "version": "3.0",
+        "versions": {
+            "layer": "4.0",
+            "navigator": "4.0"
+        },
         "description": description,
         "domain": "mitre-enterprise",
         "techniques": techniques_list,

scripts/layers/samples/bear_APT.py

@@ -62,7 +62,10 @@ def generate():
     # construct and return the layer as a dict
     return {
         "name": "*Bear APTs",
-        "version": "3.0",
+        "versions": {
+            "layer": "4.0",
+            "navigator": "4.0"
+        },
         "description": "All techniques used by an APT group with phrase 'bear' in the group aliases",
         "domain": "mitre-enterprise",
         "techniques": techniques_list,

scripts/layers/samples/heatmap.py

@@ -26,7 +26,10 @@ def generate():
     # return the techniques in a layer dict
     return {
         "name": "heatmap example",
-        "version": "3.0",
+        "versions": {
+            "layer": "4.0",
+            "navigator": "4.0"
+        },
         "sorting": 3, # descending order of score
         "description": "An example layer where all techniques have a randomized score",
         "domain": "mitre-enterprise",

scripts/layers/samples/software_execution.py

@@ -68,7 +68,10 @@ def generate(softwaretype="software"):
     return {
         "name": layername,
         "description": layerdescription,
-        "version": "3.0",
+        "versions": {
+            "layer": "4.0",
+            "navigator": "4.0"
+        },
         "domain": "mitre-enterprise",
         "techniques": techniques_list,
         "sorting": 3, # order in descending order of score (count)