Use RBAC for accept_risks API endpoints (#14632)

* Fix accept_risks API endpoints to use RBAC instead of IsAdminUser

Replace DRF's IsAdminUser permission with DefectDojo's RBAC system
on all accept_risks endpoints. IsAdminUser only checked is_staff,
bypassing role-based access control entirely.

- Use UserHasRiskAcceptanceRelatedObjectPermission for detail endpoints
  (engagement/test accept_risks) to enforce Permissions.Risk_Acceptance
- Change mass endpoint to query engagements with Risk_Acceptance
  permission instead of Engagement_View
- Enforce product-level enable_full_risk_acceptance setting on all
  accept_risks endpoints
- Add 9 RBAC unit tests covering writer/reader roles and the
  enable_full_risk_acceptance product setting

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Fix ruff lint: add blank line before class docstring

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Cody Maffucci <46459665+Maffooch@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 3 people

dojo/risk_acceptance/api.py

@@ -1,18 +1,20 @@
 from abc import ABC, abstractmethod
 from typing import NamedTuple
 
+from django.core.exceptions import PermissionDenied
 from django.db.models import QuerySet
 from django.utils import timezone
 from drf_spectacular.utils import extend_schema
 from rest_framework import serializers, status
 from rest_framework.decorators import action
-from rest_framework.permissions import IsAdminUser
+from rest_framework.permissions import IsAuthenticated
 from rest_framework.response import Response
 
+from dojo.api_v2.permissions import UserHasRiskAcceptanceRelatedObjectPermission
 from dojo.api_v2.serializers import RiskAcceptanceSerializer
 from dojo.authorization.roles_permissions import Permissions
 from dojo.engagement.queries import get_authorized_engagements
-from dojo.models import Risk_Acceptance, User, Vulnerability_Id
+from dojo.models import Engagement, Risk_Acceptance, User, Vulnerability_Id
 
 AcceptedRisk = NamedTuple("AcceptedRisk", (("vulnerability_id", str), ("justification", str), ("accepted_by", str)))
 
@@ -40,10 +42,13 @@ def risk_application_model_class(self):
         request=AcceptedRiskSerializer(many=True),
         responses={status.HTTP_201_CREATED: RiskAcceptanceSerializer(many=True)},
     )
-    @action(methods=["post"], detail=True, permission_classes=[IsAdminUser], serializer_class=AcceptedRiskSerializer,
-            filter_backends=[], pagination_class=None)
+    @action(methods=["post"], detail=True, permission_classes=[IsAuthenticated, UserHasRiskAcceptanceRelatedObjectPermission],
+            serializer_class=AcceptedRiskSerializer, filter_backends=[], pagination_class=None)
     def accept_risks(self, request, pk=None):
         model = self.get_object()
+        product = model.product if isinstance(model, Engagement) else model.engagement.product
+        if not product.enable_full_risk_acceptance:
+            raise PermissionDenied
         serializer = AcceptedRiskSerializer(data=request.data, many=True)
         if serializer.is_valid():
             accepted_risks = serializer.save()
@@ -63,7 +68,7 @@ class AcceptedFindingsMixin(ABC):
         request=AcceptedRiskSerializer(many=True),
         responses={status.HTTP_201_CREATED: RiskAcceptanceSerializer(many=True)},
     )
-    @action(methods=["post"], detail=False, permission_classes=[IsAdminUser], serializer_class=AcceptedRiskSerializer)
+    @action(methods=["post"], detail=False, permission_classes=[IsAuthenticated], serializer_class=AcceptedRiskSerializer)
     def accept_risks(self, request):
         serializer = AcceptedRiskSerializer(data=request.data, many=True)
         if serializer.is_valid():
@@ -72,7 +77,9 @@ def accept_risks(self, request):
             return Response(data=serializer.errors, status=status.HTTP_400_BAD_REQUEST)
         owner = request.user
         accepted_result = []
-        for engagement in get_authorized_engagements(Permissions.Engagement_View):
+        for engagement in get_authorized_engagements(Permissions.Risk_Acceptance):
+            if not engagement.product.enable_full_risk_acceptance:
+                continue
             base_findings = engagement.unaccepted_open_findings
             accepted = _accept_risks(accepted_risks, base_findings, owner)
             engagement.accept_risks(accepted)

unittests/test_bulk_risk_acceptance_api.py

@@ -9,6 +9,7 @@
     Engagement,
     Finding,
     Product,
+    Product_Member,
     Product_Type,
     Product_Type_Member,
     Role,
@@ -117,3 +118,190 @@ def test_finding_accept_risks(self):
         for ra in self.engagement_2b.risk_acceptance.all():
             for finding in ra.accepted_findings.all():
                 self.assertEqual(self.engagement_2a.product, finding.test.engagement.product)
+
+
+class TestBulkRiskAcceptanceRbac(APITestCase):
+
+    """Tests that accept_risks endpoints use RBAC (Permissions.Risk_Acceptance) instead of is_staff."""
+
+    @classmethod
+    def setUpTestData(cls):
+        cls.product_type = Product_Type.objects.create(name="RBAC Test Type")
+        cls.test_type = Test_Type.objects.create(name="RBAC Mock Scan", static_tool=True)
+
+        # Product with full risk acceptance enabled (default)
+        cls.product_enabled = Product.objects.create(
+            prod_type=cls.product_type, name="RBAC Enabled",
+            description="Full risk acceptance enabled",
+            enable_full_risk_acceptance=True,
+        )
+        # Product with full risk acceptance disabled
+        cls.product_disabled = Product.objects.create(
+            prod_type=cls.product_type, name="RBAC Disabled",
+            description="Full risk acceptance disabled",
+            enable_full_risk_acceptance=False,
+        )
+
+        cls.engagement_enabled = Engagement.objects.create(
+            product=cls.product_enabled,
+            target_start=datetime.datetime(2000, 1, 1, tzinfo=datetime.UTC),
+            target_end=datetime.datetime(2000, 2, 1, tzinfo=datetime.UTC),
+        )
+        cls.engagement_disabled = Engagement.objects.create(
+            product=cls.product_disabled,
+            target_start=datetime.datetime(2000, 1, 1, tzinfo=datetime.UTC),
+            target_end=datetime.datetime(2000, 2, 1, tzinfo=datetime.UTC),
+        )
+
+        cls.test_enabled = Test.objects.create(
+            engagement=cls.engagement_enabled, test_type=cls.test_type,
+            target_start=datetime.datetime(2000, 1, 1, tzinfo=datetime.UTC),
+            target_end=datetime.datetime(2000, 2, 1, tzinfo=datetime.UTC),
+        )
+        cls.test_disabled = Test.objects.create(
+            engagement=cls.engagement_disabled, test_type=cls.test_type,
+            target_start=datetime.datetime(2000, 1, 1, tzinfo=datetime.UTC),
+            target_end=datetime.datetime(2000, 2, 1, tzinfo=datetime.UTC),
+        )
+
+        # Writer user: has Risk_Acceptance permission, NOT is_staff
+        cls.writer = User.objects.create(username="rbac_writer", is_staff=False)
+        cls.writer_token = Token.objects.create(user=cls.writer)
+        Product_Member.objects.create(
+            product=cls.product_enabled, user=cls.writer,
+            role=Role.objects.get(id=Roles.Writer),
+        )
+        Product_Member.objects.create(
+            product=cls.product_disabled, user=cls.writer,
+            role=Role.objects.get(id=Roles.Writer),
+        )
+
+        # Reader user: does NOT have Risk_Acceptance permission, NOT is_staff
+        cls.reader = User.objects.create(username="rbac_reader", is_staff=False)
+        cls.reader_token = Token.objects.create(user=cls.reader)
+        Product_Member.objects.create(
+            product=cls.product_enabled, user=cls.reader,
+            role=Role.objects.get(id=Roles.Reader),
+        )
+
+        def create_finding(test, reporter, cve):
+            return Finding(
+                test=test, title=f"Finding {cve}", cve=cve, severity="High",
+                verified=True, description="Test", mitigation="Test",
+                impact="Test", reporter=reporter, numerical_severity="S1",
+                static_finding=True, dynamic_finding=False,
+            )
+
+        # Findings on the enabled product
+        Finding.objects.bulk_create(
+            create_finding(cls.test_enabled, cls.writer, f"CVE-2024-{i}") for i in range(10))
+        for f in Finding.objects.filter(test=cls.test_enabled):
+            Vulnerability_Id.objects.get_or_create(finding=f, vulnerability_id=f.cve)
+
+        # Findings on the disabled product
+        Finding.objects.bulk_create(
+            create_finding(cls.test_disabled, cls.writer, f"CVE-2024-{i + 100}") for i in range(5))
+        for f in Finding.objects.filter(test=cls.test_disabled):
+            Vulnerability_Id.objects.get_or_create(finding=f, vulnerability_id=f.cve)
+
+    def _client_for(self, token):
+        client = APIClient()
+        client.credentials(HTTP_AUTHORIZATION="Token " + token.key)
+        return client
+
+    def _accepted_risks(self, cve_ids):
+        return [{"vulnerability_id": cve, "justification": "Test", "accepted_by": "Tester"} for cve in cve_ids]
+
+    # --- Writer (has Risk_Acceptance) succeeds on enabled product ---
+
+    def test_writer_can_accept_risks_on_engagement(self):
+        client = self._client_for(self.writer_token)
+        result = client.post(
+            reverse("engagement-accept-risks", kwargs={"pk": self.engagement_enabled.id}),
+            data=self._accepted_risks(["CVE-2024-0"]),
+            format="json",
+        )
+        self.assertEqual(result.status_code, 201)
+
+    def test_writer_can_accept_risks_on_test(self):
+        client = self._client_for(self.writer_token)
+        result = client.post(
+            reverse("test-accept-risks", kwargs={"pk": self.test_enabled.id}),
+            data=self._accepted_risks(["CVE-2024-1"]),
+            format="json",
+        )
+        self.assertEqual(result.status_code, 201)
+
+    def test_writer_can_accept_risks_on_findings(self):
+        client = self._client_for(self.writer_token)
+        result = client.post(
+            reverse("finding-accept-risks"),
+            data=self._accepted_risks(["CVE-2024-2"]),
+            format="json",
+        )
+        self.assertEqual(result.status_code, 201)
+
+    # --- Reader (no Risk_Acceptance) is forbidden ---
+
+    def test_reader_forbidden_on_engagement(self):
+        client = self._client_for(self.reader_token)
+        result = client.post(
+            reverse("engagement-accept-risks", kwargs={"pk": self.engagement_enabled.id}),
+            data=self._accepted_risks(["CVE-2024-3"]),
+            format="json",
+        )
+        self.assertEqual(result.status_code, 403)
+
+    def test_reader_forbidden_on_test(self):
+        client = self._client_for(self.reader_token)
+        result = client.post(
+            reverse("test-accept-risks", kwargs={"pk": self.test_enabled.id}),
+            data=self._accepted_risks(["CVE-2024-4"]),
+            format="json",
+        )
+        self.assertEqual(result.status_code, 403)
+
+    def test_reader_gets_empty_result_on_findings(self):
+        client = self._client_for(self.reader_token)
+        result = client.post(
+            reverse("finding-accept-risks"),
+            data=self._accepted_risks(["CVE-2024-5"]),
+            format="json",
+        )
+        # Mass endpoint returns 201 with empty results (no authorized engagements)
+        self.assertEqual(result.status_code, 201)
+        self.assertEqual(len(result.json()), 0)
+
+    # --- enable_full_risk_acceptance=False blocks risk acceptance ---
+
+    def test_engagement_blocked_when_full_risk_acceptance_disabled(self):
+        client = self._client_for(self.writer_token)
+        result = client.post(
+            reverse("engagement-accept-risks", kwargs={"pk": self.engagement_disabled.id}),
+            data=self._accepted_risks(["CVE-2024-100"]),
+            format="json",
+        )
+        self.assertEqual(result.status_code, 403)
+
+    def test_test_blocked_when_full_risk_acceptance_disabled(self):
+        client = self._client_for(self.writer_token)
+        result = client.post(
+            reverse("test-accept-risks", kwargs={"pk": self.test_disabled.id}),
+            data=self._accepted_risks(["CVE-2024-101"]),
+            format="json",
+        )
+        self.assertEqual(result.status_code, 403)
+
+    def test_mass_endpoint_skips_disabled_products(self):
+        client = self._client_for(self.writer_token)
+        # Use a CVE that exists only on the disabled product
+        result = client.post(
+            reverse("finding-accept-risks"),
+            data=self._accepted_risks(["CVE-2024-102"]),
+            format="json",
+        )
+        self.assertEqual(result.status_code, 201)
+        # No risk acceptances created because the matching engagement's product has it disabled
+        self.assertEqual(len(result.json()), 0)
+        # Findings on disabled product remain unaccepted
+        self.assertEqual(self.engagement_disabled.unaccepted_open_findings.count(), 5)