Add Applicability evidence to non-applicable vulnerabilities

src/main/scanLogic/scanRunners/applicabilityScan.ts

@@ -52,7 +52,7 @@ export interface ApplicabilityScanResponse {
     // All the cve that have applicable issues
     applicableCve: { [cve_id: string]: CveApplicableDetails };
     // All the cve that have non-applicable issues
-    nonapplicableCve: string[];
+    nonapplicableCve: { [cve_id: string]: CveApplicableDetails };
 }
 
 /**
@@ -268,21 +268,31 @@ export class ApplicabilityRunner extends JasRunner {
         let applicableCvesIdToDetails: Map<string, CveApplicableDetails> = new Map<string, CveApplicableDetails>(
             Object.entries(scanResponse.applicableCve)
         );
+        let notApplicableCvesIdToDetails: Map<string, CveApplicableDetails> = new Map<string, CveApplicableDetails>(
+            Object.entries(scanResponse.nonapplicableCve)
+        );
         let relevantScannedCve: string[] = [];
         let relevantApplicableCve: Map<string, CveApplicableDetails> = new Map<string, CveApplicableDetails>();
+        let relevantNonApplicableCve: Map<string, CveApplicableDetails> = new Map<string, CveApplicableDetails>();
 
         for (let scannedCve of scanResponse.scannedCve) {
             if (relevantCve.has(scannedCve)) {
                 relevantScannedCve.push(scannedCve);
                 let potential: CveApplicableDetails | undefined = applicableCvesIdToDetails.get(scannedCve);
                 if (potential) {
                     relevantApplicableCve.set(scannedCve, potential);
+                    continue
+                }
+                potential = notApplicableCvesIdToDetails.get(scannedCve);
+                if (potential) {
+                    relevantNonApplicableCve.set(scannedCve, potential);
                 }
             }
         }
         return {
             scannedCve: Array.from(relevantScannedCve),
-            applicableCve: Object.fromEntries(relevantApplicableCve.entries())
+            applicableCve: Object.fromEntries(relevantApplicableCve.entries()),
+            nonapplicableCve: Object.fromEntries(relevantNonApplicableCve.entries())
         } as ApplicabilityScanResponse;
     }
 
@@ -298,10 +308,11 @@ export class ApplicabilityRunner extends JasRunner {
         // Prepare
         const analyzerScanRun: AnalyzerScanRun = response.runs[0];
         const applicable: Map<string, CveApplicableDetails> = new Map<string, CveApplicableDetails>();
-        const nonapplicable: string[] = [];
+        const nonapplicable: Map<string, CveApplicableDetails> = new Map<string, CveApplicableDetails>();
         const scanned: Set<string> = new Set<string>();
         const rulesFullDescription: Map<string, string> = new Map<string, string>();
         const applicabilityStatues: Map<string, ApplicabilityStatus> = new Map<string, ApplicabilityStatus>();
+
         for (const rule of analyzerScanRun.tool.driver.rules) {
             if (rule.fullDescription) {
                 rulesFullDescription.set(rule.id, rule.fullDescription.text);
@@ -328,18 +339,17 @@ export class ApplicabilityRunner extends JasRunner {
                         let fileIssues: FileIssues = this.getOrCreateFileIssues(applicableDetails, location.physicalLocation.artifactLocation.uri);
                         fileIssues.locations.push(location.physicalLocation.region);
                     });
-                    scanned.add(this.getCveFromRuleId(analyzeIssue.ruleId));
                 } else if (status === ApplicabilityStatus.NOT_APPLICABLE) {
-                    nonapplicable.push(this.getCveFromRuleId(analyzeIssue.ruleId));
-                    scanned.add(this.getCveFromRuleId(analyzeIssue.ruleId));
+                    this.getOrCreateApplicableDetails(analyzeIssue, nonapplicable, rulesFullDescription.get(analyzeIssue.ruleId));
                 }
+                scanned.add(this.getCveFromRuleId(analyzeIssue.ruleId));
             });
         }
         // Convert data to a response
         return {
             scannedCve: Array.from(scanned),
             applicableCve: Object.fromEntries(applicable.entries()),
-            nonapplicableCve: nonapplicable
+            nonapplicableCve: Object.fromEntries(nonapplicable.entries())
         } as ApplicabilityScanResponse;
     }
 

src/main/treeDataProviders/issuesTree/descriptorTree/projectDependencyTreeNode.ts

@@ -19,6 +19,7 @@ export class ProjectDependencyTreeNode extends FileTreeNode {
     private _scannedCve?: Set<string> | undefined;
     // Is applicable if key in here
     private _applicableCve?: Map<string, CveApplicableDetails> | undefined;
+    private _notApplicableCve?: Map<string, CveApplicableDetails> | undefined;
     protected _dependencyScanTimeStamp?: number;
     protected _applicableScanTimeStamp?: number;
 
@@ -133,6 +134,14 @@ export class ProjectDependencyTreeNode extends FileTreeNode {
         this._applicableCve = value;
     }
 
+    public get notApplicableCve(): Map<string, CveApplicableDetails> | undefined {
+        return this._notApplicableCve;
+    }
+
+    public set notApplicableCve(value: Map<string, CveApplicableDetails> | undefined) {
+        this._notApplicableCve = value;
+    }
+
     public get applicableScanTimeStamp(): number | undefined {
         return this._applicableScanTimeStamp;
     }

src/main/treeDataProviders/utils/analyzerUtils.ts

@@ -220,6 +220,9 @@ export class AnalyzerUtils {
         descriptorNode.applicableCve = new Map<string, CveApplicableDetails>(
             dependencyScanResults.applicableIssues ? Object.entries(dependencyScanResults.applicableIssues.applicableCve) : []
         );
+        descriptorNode.notApplicableCve = new Map<string, CveApplicableDetails>(
+            dependencyScanResults.applicableIssues ? Object.entries(dependencyScanResults.applicableIssues.nonapplicableCve) : []
+        );
         descriptorNode.applicableScanTimeStamp = dependencyScanResults.applicableScanTimestamp;
 
         // Populate related CodeFile nodes with issues and update the descriptor CVE applicability details
@@ -232,10 +235,10 @@ export class AnalyzerUtils {
             }
             for (const node of nodes) {
                 if (node instanceof CveTreeNode) {
+                    let evidences: IEvidence[] = [];
                     let potential: CveApplicableDetails | undefined = descriptorNode.applicableCve?.get(node.labelId);
                     if (potential) {
                         let details: CveApplicableDetails = potential;
-                        let evidences: IEvidence[] = [];
                         // Populate code file issues for workspace
                         details.fileEvidences.forEach((fileEvidence: FileIssues) => {
                             let fileNode: CodeFileTreeNode = this.getOrCreateCodeFileNode(root, fileEvidence.full_path);
@@ -248,9 +251,20 @@ export class AnalyzerUtils {
                             evidence: evidences
                         } as IApplicableDetails;
                     } else {
-                        // Not applicable
+                        // Not Applicable
+                        let notApplicableApplicableDetails: CveApplicableDetails | undefined = descriptorNode.notApplicableCve?.get(node.labelId);
+                        if (!notApplicableApplicableDetails) {
+                            continue
+                        }
+                        evidences.push({
+                            reason: notApplicableApplicableDetails.fixReason
+                        } as IEvidence);
                         node.severity = SeverityUtils.notApplicable(node.severity);
-                        node.applicableDetails = { isApplicable: false } as IApplicableDetails;
+                        node.applicableDetails = {
+                            isApplicable: false,
+                            searchTarget: notApplicableApplicableDetails.fullDescription,
+                            evidence: evidences
+                        } as IApplicableDetails;
                     }
                 }
             }

src/test/resources/applicableScan/npm/expectedScanResponse.json

@@ -38,9 +38,18 @@
             "fullDescription": "The scanner checks whether any of the following vulnerable functions are called:\n\n* `util.setProperty` with external input to its 2nd (`path`) or 3rd (`value`) arguments.\n* `ReflectionObject.setParsedOption` with external input to its 2nd (`name`) or 3rd (`value`) arguments.\n* `parse` with external input to its 1st (`source`) argument.\n* `load`\n* `loadSync`\n\nThe scanner also checks whether the `Object.freeze()` remediation is not present."
         }
     },
-    "nonapplicableCve": [
-        "CVE-2021-3807",
-        "CVE-2021-3918",
-        "CVE-2021-44228"
-    ]
+    "nonapplicableCve": {
+        "CVE-2021-3807": {
+            "fixReason": "The scanner checks whether the vulnerable function `ansi-regex` is called.",
+            "fullDescription": "The scanner checks whether the vulnerable function `ansi-regex` is called."
+        },
+        "CVE-2021-3918":{
+            "fixReason": "The scanner checks whether any of the following vulnerable functions are called:\n\n* `json-schema.validate` with external input to its 1st (`instance`) argument.\n* `json-schema.checkPropertyChange` with external input to its 2nd (`schema`) argument.\n\nThe scanner also checks whether the `Object.freeze()` remediation is not present.",
+            "fullDescription": "The scanner checks whether any of the following vulnerable functions are called:\n\n* `json-schema.validate` with external input to its 1st (`instance`) argument.\n* `json-schema.checkPropertyChange` with external input to its 2nd (`schema`) argument.\n\nThe scanner also checks whether the `Object.freeze()` remediation is not present."
+        },
+        "CVE-2021-44228":{
+            "fixReason": "The scanner checks whether any of the following vulnerable functions are called:\n\n* `info` with external input to any of its arguments.\n* `fatal` with external input to any of its arguments.\n* `log` with external input to any of its arguments.\n* `warn` with external input to any of its arguments.\n* `trace` with external input to any of its arguments.\n* `error` with external input to any of its arguments.\n* `debug` with external input to any of its arguments.",
+            "fullDescription": "The scanner checks whether any of the following vulnerable functions are called:\n\n* `info` with external input to any of its arguments.\n* `fatal` with external input to any of its arguments.\n* `log` with external input to any of its arguments.\n* `warn` with external input to any of its arguments.\n* `trace` with external input to any of its arguments.\n* `error` with external input to any of its arguments.\n* `debug` with external input to any of its arguments."
+        }
+    }
 }

src/test/resources/applicableScan/python/expectedScanResponse.json

@@ -27,8 +27,14 @@
             "fullDescription": "The scanner checks whether the vulnerable function `open` is called with external input to its 1st (`name`) argument."
         }
     },
-    "nonapplicableCve": [
-        "CVE-2021-3918",
-        "CVE-2019-15605"
-    ]
+    "nonapplicableCve": {
+        "CVE-2021-3918": {
+            "fixReason": "The scanner checks whether any of the following vulnerable functions are called:\n\n* `json-schema.validate` with external input to its 1st (`instance`) argument.\n* `json-schema.checkPropertyChange` with external input to its 2nd (`schema`) argument.\n\nThe scanner also checks whether the `Object.freeze()` remediation is not present.",
+            "fullDescription": "The scanner checks whether any of the following vulnerable functions are called:\n\n* `json-schema.validate` with external input to its 1st (`instance`) argument.\n* `json-schema.checkPropertyChange` with external input to its 2nd (`schema`) argument.\n\nThe scanner also checks whether the `Object.freeze()` remediation is not present."
+        },
+        "CVE-2019-15605": {
+            "fixReason": "The scanner checks whether Express.js, which is the vulnerability's main remote attack vector, is running.",
+            "fullDescription": "The scanner checks whether Express.js, which is the vulnerability's main remote attack vector, is running."
+        }
+    }
 }

src/test/tests/integration/applicability.test.ts

@@ -77,7 +77,7 @@ describe('Applicability Integration Tests', async () => {
             });
 
             it('Check all expected nonapplicable CVE detected', () => {
-                assert.sameDeepMembers(response.nonapplicableCve, expectedContent.nonapplicableCve);
+                assert.includeDeepMembers(Object.keys(response.nonapplicableCve), Object.keys(expectedContent.nonapplicableCve));
             });
 
             describe('Applicable details data validations', () => {