feat(sbom): add vulnerability support for SPDX formats

pkg/flag/options.go

@@ -410,15 +410,10 @@ func (o *Options) enableSBOM() {
 		o.Scanners.Enable(types.SBOMScanner)
 	}
 
-	if o.Format == types.FormatSPDX || o.Format == types.FormatSPDXJSON {
-		log.Info(`"--format spdx" and "--format spdx-json" disable security scanning`)
-		o.Scanners = types.Scanners{types.SBOMScanner}
-	}
-
-	if o.Format == types.FormatCycloneDX {
+	if o.Format == types.FormatCycloneDX || o.Format == types.FormatSPDX || o.Format == types.FormatSPDXJSON {
 		// Vulnerability scanning is disabled by default for CycloneDX.
 		if !viper.IsSet(ScannersFlag.ConfigName) {
-			log.Info(`"--format cyclonedx" disables security scanning. Specify "--scanners vuln" explicitly if you want to include vulnerabilities in the CycloneDX report.`)
+			log.Info(fmt.Sprintf(`"--format %[1]s" disables security scanning. Specify "--scanners vuln" explicitly if you want to include vulnerabilities in the "%[1]s" report.`, o.Format))
 			o.Scanners = nil
 		}
 		o.Scanners.Enable(types.SBOMScanner)

pkg/sbom/spdx/marshal.go

@@ -147,6 +147,15 @@ func (m *Marshaler) Marshal(ctx context.Context, bom *core.BOM) (*spdx.Document,
 		if err != nil {
 			return nil, xerrors.Errorf("spdx package error: %w", err)
 		}
+
+		// Add advisories for package
+		// cf. https://spdx.github.io/spdx-spec/v2.3/how-to-use/#k1-including-security-information-in-a-spdx-document
+		if vulns, ok := bom.Vulnerabilities()[c.ID()]; ok {
+			for _, v := range vulns {
+				spdxPackage.PackageExternalReferences = append(spdxPackage.PackageExternalReferences, m.advisoryExternalReference(v.PrimaryURL))
+			}
+		}
+
 		packages = append(packages, &spdxPackage)
 		packageIDs[c.ID()] = spdxPackage.PackageSPDXIdentifier
 
@@ -184,6 +193,9 @@ func (m *Marshaler) Marshal(ctx context.Context, bom *core.BOM) (*spdx.Document,
 			relationShips = append(relationShips, m.spdxRelationShip(refA, refB, m.spdxRelationshipType(rel.Type)))
 		}
 	}
+
+	bom.Vulnerabilities()
+
 	sortPackages(packages)
 	sortRelationships(relationShips)
 	sortFiles(files)
@@ -268,6 +280,14 @@ func (m *Marshaler) purlExternalReference(packageURL string) *spdx.PackageExtern
 	}
 }
 
+func (m *Marshaler) advisoryExternalReference(primaryURL string) *spdx.PackageExternalReference {
+	return &spdx.PackageExternalReference{
+		Category: common.CategorySecurity,
+		RefType:  common.TypeSecurityAdvisory,
+		Locator:  primaryURL,
+	}
+}
+
 func (m *Marshaler) spdxPackage(c *core.Component, pkgDownloadLocation string) (spdx.Package, error) {
 	pkgID, err := calcPkgID(m.hasher, c)
 	if err != nil {

pkg/sbom/spdx/marshal_test.go

@@ -821,6 +821,112 @@ func TestMarshaler_Marshal(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "happy path with vulnerability",
+			inputReport: types.Report{
+				SchemaVersion: report.SchemaVersion,
+				ArtifactName:  "log4j-core-2.17.0.jar",
+				ArtifactType:  artifact.TypeFilesystem,
+				Results: types.Results{
+					{
+						Target: "Java",
+						Class:  types.ClassLangPkg,
+						Type:   ftypes.Jar,
+						Packages: []ftypes.Package{
+							{
+								Name:    "org.apache.logging.log4j:log4j-core",
+								Version: "2.17.0",
+								Identifier: ftypes.PkgIdentifier{
+									PURL: &packageurl.PackageURL{
+										Type:      packageurl.TypeMaven,
+										Namespace: "org.apache.logging.log4j",
+										Name:      "log4j-core",
+										Version:   "2.17.0",
+									},
+								},
+							},
+						},
+						Vulnerabilities: []types.DetectedVulnerability{
+							{
+								VulnerabilityID:  "CVE-2021-44832",
+								PkgName:          "org.apache.logging.log4j:log4j-core",
+								InstalledVersion: "2.17.0",
+								FixedVersion:     "2.3.2, 2.12.4, 2.17.1",
+								PrimaryURL:       "https://avd.aquasec.com/nvd/cve-2021-44832",
+							},
+						},
+					},
+				},
+			},
+			wantSBOM: &spdx.Document{
+				SPDXVersion:       spdx.Version,
+				DataLicense:       spdx.DataLicense,
+				SPDXIdentifier:    "DOCUMENT",
+				DocumentName:      "log4j-core-2.17.0.jar",
+				DocumentNamespace: "http://aquasecurity.github.io/trivy/filesystem/log4j-core-2.17.0.jar-3ff14136-e09f-4df9-80ea-000000000003",
+				CreationInfo: &spdx.CreationInfo{
+					Creators: []common.Creator{
+						{
+							Creator:     "aquasecurity",
+							CreatorType: "Organization",
+						},
+						{
+							Creator:     "trivy-0.38.1",
+							CreatorType: "Tool",
+						},
+					},
+					Created: "2021-08-25T12:20:30Z",
+				},
+				Packages: []*spdx.Package{
+					{
+						PackageSPDXIdentifier:   spdx.ElementID("Package-4ee6f197f4811213"),
+						PackageDownloadLocation: "NONE",
+						PackageName:             "org.apache.logging.log4j:log4j-core",
+						PackageVersion:          "2.17.0",
+						PackageLicenseConcluded: "NONE",
+						PackageLicenseDeclared:  "NONE",
+						PackageExternalReferences: []*spdx.PackageExternalReference{
+							{
+								Category: tspdx.CategoryPackageManager,
+								RefType:  tspdx.RefTypePurl,
+								Locator:  "pkg:maven/org.apache.logging.log4j/[email protected]",
+							},
+							{
+								Category: "SECURITY",
+								RefType:  "advisory",
+								Locator:  "https://avd.aquasec.com/nvd/cve-2021-44832",
+							},
+						},
+						PrimaryPackagePurpose: tspdx.PackagePurposeLibrary,
+						PackageSupplier:       &spdx.Supplier{Supplier: tspdx.PackageSupplierNoAssertion},
+						PackageAttributionTexts: []string{
+							"PkgType: jar",
+						},
+					},
+					{
+						PackageSPDXIdentifier:   spdx.ElementID("Filesystem-121e7e7a43f02ab"),
+						PackageDownloadLocation: "NONE",
+						PackageName:             "log4j-core-2.17.0.jar",
+						PackageAttributionTexts: []string{
+							"SchemaVersion: 2",
+						},
+						PrimaryPackagePurpose: tspdx.PackagePurposeSource,
+					},
+				},
+				Relationships: []*spdx.Relationship{
+					{
+						RefA:         spdx.DocElementID{ElementRefID: "DOCUMENT"},
+						RefB:         spdx.DocElementID{ElementRefID: "Filesystem-121e7e7a43f02ab"},
+						Relationship: "DESCRIBES",
+					},
+					{
+						RefA:         spdx.DocElementID{ElementRefID: "Filesystem-121e7e7a43f02ab"},
+						RefB:         spdx.DocElementID{ElementRefID: "Package-4ee6f197f4811213"},
+						Relationship: "CONTAINS",
+					},
+				},
+			},
+		},
 		{
 			name: "happy path aggregate results",
 			inputReport: types.Report{