Merge pull request #16297 from michaelnebel/java/improveapitelemetry

Java: Identify more APIs as supported in the telemetry queries.

Author: michaelnebel

java/ql/lib/semmle/code/java/dataflow/ApiSinks.qll

@@ -0,0 +1,39 @@
+/** Provides classes representing various flow sinks for data flow / taint tracking. */
+
+private import semmle.code.java.dataflow.FlowSinks as FlowSinks
+
+final class SinkNode = FlowSinks::ApiSinkNode;
+
+/**
+ * Module that adds all API like sinks to `SinkNode`, excluding sinks for cryptography based
+ * queries, and queries where sinks are not succifiently defined (eg. using broad method name matching).
+ */
+private module AllApiSinks {
+  private import semmle.code.java.security.AndroidSensitiveCommunicationQuery
+  private import semmle.code.java.security.ArbitraryApkInstallation
+  private import semmle.code.java.security.CleartextStorageAndroidDatabaseQuery
+  private import semmle.code.java.security.CleartextStorageAndroidFilesystemQuery
+  private import semmle.code.java.security.CleartextStorageCookieQuery
+  private import semmle.code.java.security.CleartextStorageSharedPrefsQuery
+  private import semmle.code.java.security.ExternallyControlledFormatStringQuery
+  private import semmle.code.java.security.InsecureBasicAuth
+  private import semmle.code.java.security.IntentUriPermissionManipulation
+  private import semmle.code.java.security.InsecureLdapAuth
+  private import semmle.code.java.security.InsecureTrustManager
+  private import semmle.code.java.security.JndiInjection
+  private import semmle.code.java.security.JWT
+  private import semmle.code.java.security.OgnlInjection
+  private import semmle.code.java.security.SensitiveResultReceiverQuery
+  private import semmle.code.java.security.SensitiveUiQuery
+  private import semmle.code.java.security.SpelInjection
+  private import semmle.code.java.security.SpelInjectionQuery
+  private import semmle.code.java.security.QueryInjection
+  private import semmle.code.java.security.TempDirLocalInformationDisclosureQuery
+  private import semmle.code.java.security.UnsafeAndroidAccess
+  private import semmle.code.java.security.UnsafeContentUriResolution
+  private import semmle.code.java.security.UnsafeDeserializationQuery
+  private import semmle.code.java.security.UrlRedirect
+  private import semmle.code.java.security.WebviewDebuggingEnabledQuery
+  private import semmle.code.java.security.XPath
+  private import semmle.code.java.security.XSS
+}

java/ql/lib/semmle/code/java/dataflow/ApiSources.qll

@@ -0,0 +1,23 @@
+/** Provides classes representing various flow sources for data flow / taint tracking. */
+
+private import semmle.code.java.dataflow.FlowSources as FlowSources
+
+final class SourceNode = FlowSources::ApiSourceNode;
+
+/**
+ * Module that adds all API like sources to `SourceNode`, excluding some sources for cryptography based
+ * queries, and queries where sources are not succifiently defined (eg. using broad method name matching).
+ */
+private module AllApiSources {
+  private import semmle.code.java.security.ArbitraryApkInstallation
+  private import semmle.code.java.security.CleartextStorageAndroidDatabaseQuery
+  private import semmle.code.java.security.CleartextStorageAndroidFilesystemQuery
+  private import semmle.code.java.security.CleartextStorageCookieQuery
+  private import semmle.code.java.security.CleartextStorageSharedPrefsQuery
+  private import semmle.code.java.security.ImplicitPendingIntentsQuery
+  private import semmle.code.java.security.ImproperIntentVerificationQuery
+  private import semmle.code.java.security.InsecureTrustManager
+  private import semmle.code.java.security.JWT
+  private import semmle.code.java.security.StackTraceExposureQuery
+  private import semmle.code.java.security.ZipSlipQuery
+}

java/ql/lib/semmle/code/java/dataflow/FlowSinks.qll

@@ -0,0 +1,18 @@
+/** Provides classes representing various flow sinks for data flow / taint tracking. */
+
+private import java
+private import semmle.code.java.dataflow.ExternalFlow
+private import semmle.code.java.dataflow.DataFlow
+
+/**
+ * A data flow sink node for an API, which should be considered
+ * supported for a modeling perspective.
+ */
+abstract class ApiSinkNode extends DataFlow::Node { }
+
+/**
+ * Add all sink models as data sinks.
+ */
+private class ApiSinkNodeExternal extends ApiSinkNode {
+  ApiSinkNodeExternal() { sinkNode(this, _) }
+}

java/ql/lib/semmle/code/java/dataflow/FlowSources.qll

@@ -194,15 +194,17 @@ private class AndroidExternalStorageSource extends RemoteFlowSource {
 }
 
 /** Class for `tainted` user input. */
-abstract class UserInput extends DataFlow::Node { }
+abstract class UserInput extends SourceNode { }
 
 /**
  * Input that may be controlled by a remote user.
  */
-private class RemoteUserInput extends UserInput instanceof RemoteFlowSource { }
+private class RemoteUserInput extends UserInput instanceof RemoteFlowSource {
+  override string getThreatModel() { result = RemoteFlowSource.super.getThreatModel() }
+}
 
 /** A node with input that may be controlled by a local user. */
-abstract class LocalUserInput extends UserInput, SourceNode {
+abstract class LocalUserInput extends UserInput {
   override string getThreatModel() { result = "local" }
 }
 
@@ -385,3 +387,18 @@ class AndroidJavascriptInterfaceMethodParameter extends RemoteFlowSource {
     result = "Parameter of method with JavascriptInterface annotation"
   }
 }
+
+/**
+ * A data flow source node for an API, which should be considered
+ * supported for a modeling perspective.
+ */
+abstract class ApiSourceNode extends DataFlow::Node { }
+
+private class AddSourceNodes extends ApiSourceNode instanceof SourceNode { }
+
+/**
+ * Add all source models as data sources.
+ */
+private class ApiSourceNodeExternal extends ApiSourceNode {
+  ApiSourceNodeExternal() { sourceNode(this, _) }
+}

java/ql/lib/semmle/code/java/security/AndroidSensitiveCommunicationQuery.qll

@@ -4,6 +4,7 @@ import java
 import semmle.code.java.dataflow.TaintTracking
 import semmle.code.java.frameworks.android.Intent
 import semmle.code.java.security.SensitiveActions
+private import semmle.code.java.dataflow.FlowSinks
 
 /**
  * Gets regular expression for matching names of Android variables that indicate the value being held contains sensitive information.
@@ -151,17 +152,24 @@ deprecated class SensitiveCommunicationConfig extends TaintTracking::Configurati
   }
 }
 
+/**
+ * A sensitive communication sink node.
+ */
+private class SensitiveCommunicationSink extends ApiSinkNode {
+  SensitiveCommunicationSink() {
+    isSensitiveBroadcastSink(this)
+    or
+    isStartActivityOrServiceSink(this)
+  }
+}
+
 /**
  * Taint configuration tracking flow from variables containing sensitive information to broadcast Intents.
  */
 module SensitiveCommunicationConfig implements DataFlow::ConfigSig {
   predicate isSource(DataFlow::Node source) { source.asExpr() instanceof SensitiveInfoExpr }
 
-  predicate isSink(DataFlow::Node sink) {
-    isSensitiveBroadcastSink(sink)
-    or
-    isStartActivityOrServiceSink(sink)
-  }
+  predicate isSink(DataFlow::Node sink) { sink instanceof SensitiveCommunicationSink }
 
   /**
    * Holds if broadcast doesn't specify receiving package name of the 3rd party app

java/ql/lib/semmle/code/java/security/ArbitraryApkInstallation.qll

@@ -4,6 +4,7 @@ import java
 import semmle.code.java.frameworks.android.Intent
 import semmle.code.java.dataflow.DataFlow
 private import semmle.code.java.dataflow.ExternalFlow
+private import semmle.code.java.dataflow.FlowSinks
 private import semmle.code.java.dataflow.FlowSources
 
 /** A string literal that represents the MIME type for Android APKs. */
@@ -48,7 +49,7 @@ class SetDataMethod extends Method {
 }
 
 /** A dataflow sink for the URI of an intent. */
-class SetDataSink extends DataFlow::ExprNode {
+class SetDataSink extends ApiSinkNode, DataFlow::ExprNode {
   SetDataSink() {
     exists(MethodCall ma |
       this.getExpr() = ma.getQualifier() and
@@ -69,7 +70,7 @@ class UriConstructorMethod extends Method {
  * A dataflow source representing the URIs which an APK not controlled by the
  * application may come from. Including external storage and web URLs.
  */
-class ExternalApkSource extends DataFlow::Node {
+class ExternalApkSource extends ApiSourceNode {
   ExternalApkSource() {
     sourceNode(this, "android-external-storage-dir") or
     this.asExpr().(MethodCall).getMethod() instanceof UriConstructorMethod or

java/ql/lib/semmle/code/java/security/CleartextStorageAndroidDatabaseQuery.qll

@@ -6,6 +6,8 @@ import semmle.code.java.frameworks.android.ContentProviders
 import semmle.code.java.frameworks.android.Intent
 import semmle.code.java.frameworks.android.SQLite
 import semmle.code.java.security.CleartextStorageQuery
+private import semmle.code.java.dataflow.FlowSinks
+private import semmle.code.java.dataflow.FlowSources
 
 private class LocalDatabaseCleartextStorageSink extends CleartextStorageSink {
   LocalDatabaseCleartextStorageSink() { localDatabaseInput(_, this.asExpr()) }
@@ -96,15 +98,24 @@ private predicate localDatabaseStore(DataFlow::Node database, MethodCall store)
   )
 }
 
+/**
+ * A local database open method call source node.
+ */
+private class LocalDatabaseOpenMethodCallSource extends ApiSourceNode {
+  LocalDatabaseOpenMethodCallSource() { this.asExpr() instanceof LocalDatabaseOpenMethodCall }
+}
+
+/**
+ * A local database sink node.
+ */
+private class LocalDatabaseSink extends ApiSinkNode {
+  LocalDatabaseSink() { localDatabaseInput(this, _) or localDatabaseStore(this, _) }
+}
+
 private module LocalDatabaseFlowConfig implements DataFlow::ConfigSig {
-  predicate isSource(DataFlow::Node source) {
-    source.asExpr() instanceof LocalDatabaseOpenMethodCall
-  }
+  predicate isSource(DataFlow::Node source) { source instanceof LocalDatabaseOpenMethodCallSource }
 
-  predicate isSink(DataFlow::Node sink) {
-    localDatabaseInput(sink, _) or
-    localDatabaseStore(sink, _)
-  }
+  predicate isSink(DataFlow::Node sink) { sink instanceof LocalDatabaseSink }
 
   predicate isAdditionalFlowStep(DataFlow::Node n1, DataFlow::Node n2) {
     // Adds a step for tracking databases through field flow, that is, a database is opened and

java/ql/lib/semmle/code/java/security/CleartextStorageAndroidFilesystemQuery.qll

@@ -5,9 +5,11 @@
 
 import java
 import semmle.code.java.dataflow.DataFlow
-private import semmle.code.java.dataflow.ExternalFlow
 import semmle.code.java.security.CleartextStorageQuery
 import semmle.code.xml.AndroidManifest
+private import semmle.code.java.dataflow.ExternalFlow
+private import semmle.code.java.dataflow.FlowSinks
+private import semmle.code.java.dataflow.FlowSources
 
 private class AndroidFilesystemCleartextStorageSink extends CleartextStorageSink {
   AndroidFilesystemCleartextStorageSink() {
@@ -79,13 +81,27 @@ private class CloseFileMethod extends Method {
   }
 }
 
-private module FilesystemFlowConfig implements DataFlow::ConfigSig {
-  predicate isSource(DataFlow::Node src) { src.asExpr() instanceof LocalFileOpenCall }
+/**
+ * A local file open call source node.
+ */
+private class LocalFileOpenCallSource extends ApiSourceNode {
+  LocalFileOpenCallSource() { this.asExpr() instanceof LocalFileOpenCall }
+}
 
-  predicate isSink(DataFlow::Node sink) {
-    filesystemInput(sink, _) or
-    closesFile(sink, _)
+/**
+ * A local file sink node.
+ */
+private class LocalFileSink extends ApiSinkNode {
+  LocalFileSink() {
+    filesystemInput(this, _) or
+    closesFile(this, _)
   }
+}
+
+private module FilesystemFlowConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node src) { src instanceof LocalFileOpenCallSource }
+
+  predicate isSink(DataFlow::Node sink) { sink instanceof LocalFileSink }
 
   predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
     // Add nested Writer constructors as extra data flow steps

java/ql/lib/semmle/code/java/security/CleartextStorageCookieQuery.qll

@@ -4,6 +4,8 @@ import java
 import semmle.code.java.dataflow.DataFlow
 deprecated import semmle.code.java.dataflow.DataFlow3
 import semmle.code.java.security.CleartextStorageQuery
+private import semmle.code.java.dataflow.FlowSinks
+private import semmle.code.java.dataflow.FlowSources
 
 private class CookieCleartextStorageSink extends CleartextStorageSink {
   CookieCleartextStorageSink() { this.asExpr() = cookieInput(_) }
@@ -37,10 +39,24 @@ private predicate cookieStore(DataFlow::Node cookie, Expr store) {
   )
 }
 
+/**
+ * A cookie source node.
+ */
+private class CookieSource extends ApiSourceNode {
+  CookieSource() { this.asExpr() instanceof Cookie }
+}
+
+/**
+ * A cookie store sink node.
+ */
+private class CookieStoreSink extends ApiSinkNode {
+  CookieStoreSink() { cookieStore(this, _) }
+}
+
 private module CookieToStoreFlowConfig implements DataFlow::ConfigSig {
-  predicate isSource(DataFlow::Node src) { src.asExpr() instanceof Cookie }
+  predicate isSource(DataFlow::Node src) { src instanceof CookieSource }
 
-  predicate isSink(DataFlow::Node sink) { cookieStore(sink, _) }
+  predicate isSink(DataFlow::Node sink) { sink instanceof CookieStoreSink }
 }
 
 private module CookieToStoreFlow = DataFlow::Global<CookieToStoreFlowConfig>;

java/ql/lib/semmle/code/java/security/CleartextStorageSharedPrefsQuery.qll

@@ -4,6 +4,8 @@ import java
 import semmle.code.java.dataflow.DataFlow
 import semmle.code.java.frameworks.android.SharedPreferences
 import semmle.code.java.security.CleartextStorageQuery
+private import semmle.code.java.dataflow.FlowSinks
+private import semmle.code.java.dataflow.FlowSources
 
 private class SharedPrefsCleartextStorageSink extends CleartextStorageSink {
   SharedPrefsCleartextStorageSink() {
@@ -67,16 +69,30 @@ private predicate sharedPreferencesStore(DataFlow::Node editor, MethodCall m) {
   editor.asExpr() = m.getQualifier().getUnderlyingExpr()
 }
 
-/** Flow from `SharedPreferences.Editor` to either a setter or a store method. */
-private module SharedPreferencesFlowConfig implements DataFlow::ConfigSig {
-  predicate isSource(DataFlow::Node src) {
-    src.asExpr() instanceof SharedPreferencesEditorMethodCall
+/**
+ * A shared preferences editor method call source node.
+ */
+private class SharedPreferencesEditorMethodCallSource extends ApiSourceNode {
+  SharedPreferencesEditorMethodCallSource() {
+    this.asExpr() instanceof SharedPreferencesEditorMethodCall
   }
+}
 
-  predicate isSink(DataFlow::Node sink) {
-    sharedPreferencesInput(sink, _) or
-    sharedPreferencesStore(sink, _)
+/**
+ * A shared preferences sink node.
+ */
+private class SharedPreferencesSink extends ApiSinkNode {
+  SharedPreferencesSink() {
+    sharedPreferencesInput(this, _) or
+    sharedPreferencesStore(this, _)
   }
 }
 
+/** Flow from `SharedPreferences.Editor` to either a setter or a store method. */
+private module SharedPreferencesFlowConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node src) { src instanceof SharedPreferencesEditorMethodCallSource }
+
+  predicate isSink(DataFlow::Node sink) { sink instanceof SharedPreferencesSink }
+}
+
 private module SharedPreferencesFlow = DataFlow::Global<SharedPreferencesFlowConfig>;