codeql/java/ql/lib/CHANGELOG.md

0.6.4

No user-facing changes.

0.6.3

New Features

• Kotlin versions up to 1.9.0 are now supported.

Minor Analysis Improvements

• Added flow through the block arguments of kotlin.io.use and kotlin.with.

• Added models for the following packages:

  • com.alibaba.druid.sql
  • com.fasterxml.jackson.databind
  • com.jcraft.jsch
  • io.netty.handler.ssl
  • okhttp3
  • org.antlr.runtime
  • org.fusesource.leveldbjni
  • org.influxdb
  • org.springframework.core.io
  • org.yaml.snakeyaml

• Deleted the deprecated getRHS predicate from the LValue class, use getRhs instead.

• Deleted the deprecated getCFGNode predicate from the SsaVariable class, use getCfgNode instead.

• Deleted many deprecated predicates and classes with uppercase XML, JSON, URL, API, etc. in their names. Use the PascalCased versions instead.

• Added models for the following packages:

  • java.lang
  • java.nio.file

• Added dataflow models for the Gson deserialization library.

• Added models for the following packages:

  • okhttp3

• Added more dataflow models for the Play Framework.

• Modified the models related to java.nio.file.Files.copy so that generic [Input|Output]Stream arguments are not considered file-related sinks.

• Dataflow analysis has a new flow step through constructors of transitive subtypes of java.io.InputStream that wrap an underlying data source. Previously, the step only existed for direct subtypes of java.io.InputStream.

• Path creation sinks modeled in PathCreation.qll have been added to the models-as-data sink kind path-injection.

• Updated the regular expression in the HostnameSanitizer sanitizer in the semmle.code.java.security.RequestForgery library to better detect strings prefixed with a hostname.

• Changed the android-widget Java source kind to remote. Any custom data extensions that use the android-widget source kind will need to be updated accordingly in order to continue working.

• Updated the following Java sink kind names. Any custom data extensions will need to be updated accordingly in order to continue working.

  • sql to sql-injection
  • url-redirect to url-redirection
  • xpath to xpath-injection
  • ssti to template-injection
  • logging to log-injection
  • groovy to groovy-injection
  • jexl to jexl-injection
  • mvel to mvel-injection
  • xslt to xslt-injection
  • ldap to ldap-injection
  • pending-intent-sent to pending-intents
  • intent-start to intent-redirection
  • set-hostname-verifier to hostname-verification
  • header-splitting to response-splitting
  • xss to html-injection and js-injection
  • write-file to file-system-store
  • create-file and read-file to path-injection
  • open-url and jdbc-url to request-forgery

0.6.2

Minor Analysis Improvements

• Added SQL injection sinks for Spring JDBC's NamedParameterJdbcOperations.

• Added models for the following packages:

  • org.apache.hadoop.fs

• Added the ArithmeticCommon.qll library to provide predicates for reasoning about arithmetic operations.

• Added the ArithmeticTaintedLocalQuery.qll library to provide the ArithmeticTaintedLocalOverflowFlow and ArithmeticTaintedLocalUnderflowFlow taint-tracking modules to reason about arithmetic with unvalidated user input.

• Added the ArithmeticTaintedQuery.qll library to provide the RemoteUserInputOverflow and RemoteUserInputUnderflow taint-tracking modules to reason about arithmetic with unvalidated user input.

• Added the ArithmeticUncontrolledQuery.qll library to provide the ArithmeticUncontrolledOverflowFlow and ArithmeticUncontrolledUnderflowFlow taint-tracking modules to reason about arithmetic with uncontrolled user input.

• Added the ArithmeticWithExtremeValuesQuery.qll library to provide the MaxValueFlow and MinValueFlow dataflow modules to reason about arithmetic with extreme values.

• Added the BrokenCryptoAlgorithmQuery.qll library to provide the InsecureCryptoFlow taint-tracking module to reason about broken cryptographic algorithm vulnerabilities.

• Added the ExecTaintedLocalQuery.qll library to provide the LocalUserInputToArgumentToExecFlow taint-tracking module to reason about command injection vulnerabilities caused by local data flow.

• Added the ExternallyControlledFormatStringLocalQuery.qll library to provide the ExternallyControlledFormatStringLocalFlow taint-tracking module to reason about format string vulnerabilities caused by local data flow.

• Added the ImproperValidationOfArrayConstructionCodeSpecifiedQuery.qll library to provide the BoundedFlowSourceFlow dataflow module to reason about improper validation of code-specified sizes used for array construction.

• Added the ImproperValidationOfArrayConstructionLocalQuery.qll library to provide the ImproperValidationOfArrayConstructionLocalFlow taint-tracking module to reason about improper validation of local user-provided sizes used for array construction caused by local data flow.

• Added the ImproperValidationOfArrayConstructionQuery.qll library to provide the ImproperValidationOfArrayConstructionFlow taint-tracking module to reason about improper validation of user-provided size used for array construction.

• Added the ImproperValidationOfArrayIndexCodeSpecifiedQuery.qll library to provide the BoundedFlowSourceFlow data flow module to reason about about improper validation of code-specified array index.

• Added the ImproperValidationOfArrayIndexLocalQuery.qll library to provide the ImproperValidationOfArrayIndexLocalFlow taint-tracking module to reason about improper validation of a local user-provided array index.

• Added the ImproperValidationOfArrayIndexQuery.qll library to provide the ImproperValidationOfArrayIndexFlow taint-tracking module to reason about improper validation of user-provided array index.

• Added the InsecureCookieQuery.qll library to provide the SecureCookieFlow taint-tracking module to reason about insecure cookie vulnerabilities.

• Added the MaybeBrokenCryptoAlgorithmQuery.qll library to provide the InsecureCryptoFlow taint-tracking module to reason about broken cryptographic algorithm vulnerabilities.

• Added the NumericCastTaintedQuery.qll library to provide the NumericCastTaintedFlow taint-tracking module to reason about numeric cast vulnerabilities.

• Added the ResponseSplittingLocalQuery.qll library to provide the ResponseSplittingLocalFlow taint-tracking module to reason about response splitting vulnerabilities caused by local data flow.

• Added the SqlConcatenatedQuery.qll library to provide the UncontrolledStringBuilderSourceFlow taint-tracking module to reason about SQL injection vulnerabilities caused by concatenating untrusted strings.

• Added the SqlTaintedLocalQuery.qll library to provide the LocalUserInputToArgumentToSqlFlow taint-tracking module to reason about SQL injection vulnerabilities caused by local data flow.

• Added the StackTraceExposureQuery.qll library to provide the printsStackExternally, stringifiedStackFlowsExternally, and getMessageFlowsExternally predicates to reason about stack trace exposure vulnerabilities.

• Added the TaintedPermissionQuery.qll library to provide the TaintedPermissionFlow taint-tracking module to reason about tainted permission vulnerabilities.

• Added the TempDirLocalInformationDisclosureQuery.qll library to provide the TempDirSystemGetPropertyToCreate taint-tracking module to reason about local information disclosure vulnerabilities caused by local data flow.

• Added the UnsafeHostnameVerificationQuery.qll library to provide the TrustAllHostnameVerifierFlow taint-tracking module to reason about insecure hostname verification vulnerabilities.

• Added the UrlRedirectLocalQuery.qll library to provide the UrlRedirectLocalFlow taint-tracking module to reason about URL redirection vulnerabilities caused by local data flow.

• Added the UrlRedirectQuery.qll library to provide the UrlRedirectFlow taint-tracking module to reason about URL redirection vulnerabilities.

• Added the XPathInjectionQuery.qll library to provide the XPathInjectionFlow taint-tracking module to reason about XPath injection vulnerabilities.

• Added the XssLocalQuery.qll library to provide the XssLocalFlow taint-tracking module to reason about XSS vulnerabilities caused by local data flow.

• Moved the url-open-stream sink models to experimental and removed url-open-stream as a sink option from the Customizing Library Models for Java documentation.

• Added models for the Apache Commons Net library.

• Updated the neutralModel extensible predicate to include a kind column.

• Added models for the io.jsonwebtoken library.

0.6.1

Deprecated APIs

• The sensitiveResultReceiver predicate in SensitiveResultReceiverQuery.qll has been deprecated and replaced with isSensitiveResultReceiver in order to use the new dataflow API.

Minor Analysis Improvements

• Changed some models of Spring's FileCopyUtils.copy to be path injection sinks instead of summaries.
• Added models for the following packages:
  • java.nio.file
• Added models for Apache HttpComponents versions 4 and 5.
• Added sanitizers that recognize line breaks to the query java/log-injection.
• Added new flow steps for java.util.StringJoiner.

0.6.0

Deprecated APIs

• The execTainted predicate in CommandLineQuery.qll has been deprecated and replaced with the predicate execIsTainted.
• The recently introduced new data flow and taint tracking APIs have had a number of module and predicate renamings. The old APIs remain in place for now.
• The WebViewDubuggingQuery library has been renamed to WebViewDebuggingQuery to fix the typo in the file name. WebViewDubuggingQuery is now deprecated.

New Features

• Predicates Compilation.getExpandedArgument and Compilation.getAnExpandedArgument has been added.

Minor Analysis Improvements

• Fixed a bug in the regular expression used to identify sensitive information in SensitiveActions::getCommonSensitiveInfoRegex. This may affect the results of the queries java/android/sensitive-communication, java/android/sensitive-keyboard-cache, and java/sensitive-log.
• Added a summary model for the java.lang.UnsupportedOperationException(String) constructor.
• The filenames embedded in Compilation.toString() now use / as the path separator on all platforms.
• Added models for the following packages:
  • java.lang
  • java.net
  • java.nio.file
  • java.io
  • java.lang.module
  • org.apache.commons.httpclient.util
  • org.apache.commons.io
  • org.apache.http.client
  • org.eclipse.jetty.client
  • com.google.common.io
  • kotlin.io
• Added the TaintedPathQuery.qll library to provide the TaintedPathFlow and TaintedPathLocalFlow taint-tracking modules to reason about tainted path vulnerabilities.
• Added the ZipSlipQuery.qll library to provide the ZipSlipFlow taint-tracking module to reason about zip-slip vulnerabilities.
• Added the InsecureBeanValidationQuery.qll library to provide the BeanValidationFlow taint-tracking module to reason about bean validation vulnerabilities.
• Added the XssQuery.qll library to provide the XssFlow taint-tracking module to reason about cross site scripting vulnerabilities.
• Added the LdapInjectionQuery.qll library to provide the LdapInjectionFlow taint-tracking module to reason about LDAP injection vulnerabilities.
• Added the ResponseSplittingQuery.qll library to provide the ResponseSplittingFlow taint-tracking module to reason about response splitting vulnerabilities.
• Added the ExternallyControlledFormatStringQuery.qll library to provide the ExternallyControlledFormatStringFlow taint-tracking module to reason about externally controlled format string vulnerabilities.
• Improved the handling of addition in the range analysis. This can cause in minor changes to the results produced by java/index-out-of-bounds and java/constant-comparison.
• A new models as data sink kind command-injection has been added.
• The queries java/command-line-injection and java/concatenated-command-line now can be extended using the command-injection models as data sink kind.
• Added more sink and summary dataflow models for the following packages:
  • java.net
  • java.nio.file
  • javax.imageio.stream
  • javax.naming
  • javax.servlet
  • org.geogebra.web.full.main
  • hudson
  • hudson.cli
  • hudson.lifecycle
  • hudson.model
  • hudson.scm
  • hudson.util
  • hudson.util.io
• Added the extensible abstract class JndiInjectionSanitizer. Now this class can be extended to add more sanitizers to the java/jndi-injection query.
• Added a summary model for the nativeSQL method of the java.sql.Connection interface.
• Added sink and summary dataflow models for the Jenkins and Netty frameworks.
• The Models as Data syntax for selecting the qualifier has been changed from -1 to this (e.g. Argument[-1] is now written as Argument[this]).
• Added sources and flow step models for the Netty framework up to version 4.1.
• Added more dataflow models for frequently-used JDK APIs.

Bug Fixes

• Fixed some accidental predicate visibility in the backwards-compatible wrapper for data flow configurations. In particular DataFlow::hasFlowPath, DataFlow::hasFlow, DataFlow::hasFlowTo, and DataFlow::hasFlowToExpr were accidentally exposed in a single version.

0.5.6

No user-facing changes.

0.5.5

New Features

• Added support for merging two PathGraphs via disjoint union to allow results from multiple data flow computations in a single path-problem query.

Major Analysis Improvements

• Removed low-confidence call edges to known neutral call targets from the call graph used in data flow analysis. This includes, for example, custom List.contains implementations when the best inferrable type at the call site is simply List.
• Added more sink and summary dataflow models for the following packages:
  • java.io
  • java.lang
  • java.sql
  • javafx.scene.web
  • org.apache.commons.compress.archivers.tar
  • org.apache.http.client.utils
  • org.codehaus.cargo.container.installer
• The main data flow and taint tracking APIs have been changed. The old APIs remain in place for now and translate to the new through a backwards-compatible wrapper. If multiple configurations are in scope simultaneously, then this may affect results slightly. The new API is quite similar to the old, but makes use of a configuration module instead of a configuration class.

Minor Analysis Improvements

• Deleted the deprecated getPath and getFolder predicates from the XmlFile class.
• Deleted the deprecated getRepresentedString predicate from the StringLiteral class.
• Deleted the deprecated ServletWriterSource class.
• Deleted the deprecated getGroupID, getArtefactID, and artefactMatches predicates from the MavenRepoJar class.

0.5.4

Minor Analysis Improvements

• Added new sinks for java/hardcoded-credential-api-call to identify the use of hardcoded secrets in the creation and verification of JWT tokens using com.auth0.jwt. These sinks are from an experimental query submitted by @luchua.
• The Java extractor now supports builds against JDK 20.
• The query java/hardcoded-credential-api-call now recognizes methods that accept user and password from the SQLServerDataSource class of the Microsoft JDBC Driver for SQL Server.

0.5.3

New Features

• Kotlin versions up to 1.8.20 are now supported.

Minor Analysis Improvements

• Removed the first argument of java.nio.file.Files#createTempDirectory(String,FileAttribute[]) as a "create-file" sink.
• Added the first argument of java.nio.file.Files#copy as a "read-file" sink for the java/path-injection query.
• The data flow library now disregards flow through code that is dead based on some basic constant propagation, for example, guards like if (1+1>3).

0.5.2

Minor Analysis Improvements

• Added sink models for the createQuery, createNativeQuery, and createSQLQuery methods of the org.hibernate.query.QueryProducer interface.

0.5.1

Minor Analysis Improvements

• Added sink models for the constructors of org.springframework.jdbc.object.MappingSqlQuery and org.springframework.jdbc.object.MappingSqlQueryWithParameters.
• Added more dataflow models for frequently-used JDK APIs.
• Removed summary model for java.lang.String#endsWith(String) and added neutral model for this API.
• Added additional taint step for java.lang.String#endsWith(String) to ConditionalBypassFlowConfig.
• Added AllowContentAccessMethod to represent the setAllowContentAccess method of the android.webkit.WebSettings class.
• Added an external flow source for the parameters of methods annotated with android.webkit.JavascriptInterface.

0.5.0

Minor Analysis Improvements

• Added more dataflow models for frequently-used JDK APIs.
• The extraction of Kotlin extension methods has been improved when default parameter values are present. The dispatch and extension receiver parameters are extracted in the correct order. The ExtensionMethod::getExtensionReceiverParameterIndex predicate has been introduced to facilitate getting the correct extension parameter index.
• The query java/insecure-cookie now uses global dataflow to track secure cookies being set to the HTTP response object.
• The library PathSanitizer.qll has been improved to detect more path validation patterns in Kotlin.
• Models as Data models for Java are defined as data extensions instead of being inlined in the code. New models should be added in the lib/ext folder.
• Added a taint model for the method java.nio.file.Path.getParent.
• Fixed a problem in the taint model for the method java.nio.file.Paths.get.
• Deleted the deprecated LocalClassDeclStmtNode and LocalClassDeclStmt classes from PrintAst.qll and Statement.qll respectively.
• Deleted the deprecated getLocalClass predicate from LocalTypeDeclStmt, and the deprecated getLocalClassDeclStmt predicate from LocalClassOrInterface.
• Added support for Android Manifest <activity-aliases> elements in data flow sources.

Bug Fixes

• We now correctly handle empty block comments, like /**/. Previously these could be mistaken for Javadoc comments and led to attribution of Javadoc tags to the wrong declaration.

0.4.6

No user-facing changes.

0.4.5

No user-facing changes.

0.4.4

New Features

• Kotlin support is now in beta. This means that Java analyses will also include Kotlin code by default. Kotlin support can be disabled by setting CODEQL_EXTRACTOR_JAVA_AGENT_DISABLE_KOTLIN to true in the environment.
• The new string Compilation.getInfo(string) predicate provides access to some information about compilations.

Minor Analysis Improvements

• The ReDoS libraries in semmle.code.java.security.regexp has been moved to a shared pack inside the shared/ folder, and the previous location has been deprecated.
• Added data flow summaries for tainted Android intents sent to activities via Activity.startActivities.

0.4.3

No user-facing changes.

0.4.2

Deprecated APIs

• Deprecated ContextStartActivityMethod. Use StartActivityMethod instead.

New Features

• Added a new predicate, hasIncompletePermissions, in the AndroidProviderXmlElement class. This predicate detects if a provider element does not provide both read and write permissions.

Minor Analysis Improvements

• Added support for common patterns involving Stream.collect and common collectors like Collectors.toList().
• The class TypeVariable now also extends Modifiable.
• Added data flow steps for tainted Android intents that are sent to services and receivers.
• Improved the data flow step for tainted Android intents that are sent to activities so that more cases are covered.

0.4.1

Minor Analysis Improvements

• Added external flow sources for the intents received in exported Android services.

0.4.0

Breaking Changes

• The Member.getQualifiedName() predicate result now includes the qualified name of the declaring type.

Deprecated APIs

• The predicate Annotation.getAValue() has been deprecated because it might lead to obtaining the value of the wrong annotation element by accident. getValue(string) (or one of the value type specific predicates) should be used to explicitly specify the name of the annotation element.
• The predicate Annotation.getAValue(string) has been renamed to getAnArrayValue(string).
• The predicate SuppressWarningsAnnotation.getASuppressedWarningLiteral() has been deprecated because it unnecessarily restricts the result type; getASuppressedWarning() should be used instead.
• The predicates TargetAnnotation.getATargetExpression() and RetentionAnnotation.getRetentionPolicyExpression() have been deprecated because getting the enum constant read expression is rarely useful, instead the corresponding predicates for getting the name of the referenced enum constants should be used.

New Features

• Added a new predicate, allowsBackup, in the AndroidApplicationXmlElement class. This predicate detects if the application element does not disable the android:allowBackup attribute.
• The predicates of the CodeQL class Annotation have been improved:
  • Convenience value type specific predicates have been added, such as getEnumConstantValue(string) or getStringValue(string).
  • Convenience predicates for elements with array values have been added, such as getAnEnumConstantArrayValue(string). While the behavior of the existing predicates has not changed, usage of them should be reviewed (or replaced with the newly added predicate) to make sure they work correctly for elements with array values.
  • Some internal CodeQL usage of the Annotation predicates has been adjusted and corrected; this might affect the results of some queries.
• New predicates have been added to the CodeQL class Annotatable to support getting declared and associated annotations. As part of that, hasAnnotation() has been changed to also consider inherited annotations, to be consistent with hasAnnotation(string, string) and getAnAnnotation(). The newly added predicate hasDeclaredAnnotation() can be used as replacement for the old functionality.
• New predicates have been added to the CodeQL class AnnotationType to simplify getting information about usage of JDK meta-annotations, such as @Retention.

Major Analysis Improvements

• The virtual dispatch relation used in data flow now favors summary models over source code for dispatch to interface methods from java.util unless there is evidence that a specific source implementation is reachable. This should provide increased precision for any projects that include, for example, custom List or Map implementations.

Minor Analysis Improvements

• Added new sinks to the query java/android/implicit-pendingintents to take into account the classes androidx.core.app.NotificationManagerCompat and androidx.core.app.AlarmManagerCompat.
• Added new flow steps for androidx.core.app.NotificationCompat and its inner classes.
• Added flow sinks, sources and summaries for the Kotlin standard library.
• Added flow summary for org.springframework.data.repository.CrudRepository.save().
• Added new flow steps for the following Android classes:
  • android.content.ContentResolver
  • android.content.ContentProviderClient
  • android.content.ContentProviderOperation
  • android.content.ContentProviderOperation$Builder
  • android.content.ContentProviderResult
  • android.database.Cursor
• Added taint flow models for the java.lang.String.(charAt|getBytes) methods.
• Improved taint flow models for the java.lang.String.(replace|replaceFirst|replaceAll) methods. Additional results may be found where users do not properly sanitize their inputs.

Bug Fixes

• Fixed an issue in the taint tracking analysis where implicit reads were not allowed by default in sinks or additional taint steps that used flow states.

0.3.5

0.3.4

Deprecated APIs

• Many classes/predicates/modules with upper-case acronyms in their name have been renamed to follow our style-guide. The old name still exists as a deprecated alias.
• The utility files previously in the semmle.code.java.security.performance package have been moved to the semmle.code.java.security.regexp package.
  The previous files still exist as deprecated aliases.

New Features

• Added a new predicate, requiresPermissions, in the AndroidComponentXmlElement and AndroidApplicationXmlElement classes to detect if the element has explicitly set a value for its android:permission attribute.
• Added a new predicate, hasAnIntentFilterElement, in the AndroidComponentXmlElement class to detect if a component contains an intent filter element.
• Added a new predicate, hasExportedAttribute, in the AndroidComponentXmlElement class to detect if a component has an android:exported attribute.
• Added a new class, AndroidCategoryXmlElement, to represent a category element in an Android manifest file.
• Added a new predicate, getACategoryElement, in the AndroidIntentFilterXmlElement class to get a category element of an intent filter.
• Added a new predicate, isInBuildDirectory, in the AndroidManifestXmlFile class. This predicate detects if the manifest file is located in a build directory.
• Added a new predicate, isDebuggable, in the AndroidApplicationXmlElement class. This predicate detects if the application element has its android:debuggable attribute enabled.

Minor Analysis Improvements

• Added new flow steps for the classes java.nio.file.Path and java.nio.file.Paths.
• The class AndroidFragment now also models the Android Jetpack version of the Fragment class (androidx.fragment.app.Fragment).
• Java 19 builds can now be extracted. There are no non-preview new language features in this release, so the only user-visible change is that the CodeQL extractor will now correctly trace compilations using the JDK 19 release of javac.
• Classes and methods that are seen with several different paths during the extraction process (for example, packaged into different JAR files) now report an arbitrarily selected location via their getLocation and hasLocationInfo predicates, rather than reporting all of them. This may lead to reduced alert duplication.
• The query java/hardcoded-credential-api-call now recognises methods that consume usernames, passwords and keys from the JSch, Ganymed, Apache SSHD, sshj, Trilead SSH-2, Apache FTPClient and MongoDB projects.

0.3.3

Minor Analysis Improvements

• Improved analysis of the Android class AsyncTask so that data can properly flow through its methods according to the life-cycle steps described here: https://developer.android.com/reference/android/os/AsyncTask#the-4-steps.
• Added a data-flow model for the setProperty method of java.util.Properties. Additional results may be found where relevant data is stored in and then retrieved from a Properties instance.

0.3.2

New Features

• The QL predicate Expr::getUnderlyingExpr has been added. It can be used to look through casts and not-null expressions and obtain the underlying expression to which they apply.

Minor Analysis Improvements

• The JUnit5 version of AssertNotNull is now recognized, which removes related false positives in the nullness queries.
• Added data flow models for java.util.Scanner.

0.3.1

New Features

• Added an ErrorType class. An instance of this class will be used if an extractor is unable to extract a type, or if an up/downgrade script is unable to provide a type.

Minor Analysis Improvements

• Added data-flow models for java.util.Properties. Additional results may be found where relevant data is stored in and then retrieved from a Properties instance.
• Added Modifier.isInline().
• Removed Kotlin-specific database and QL structures for loops and break/continue statements. The Kotlin extractor was changed to reuse the Java structures for these constructs.
• Added additional flow sources for uses of external storage on Android.

0.3.0

Deprecated APIs

• The BarrierGuard class has been deprecated. Such barriers and sanitizers can now instead be created using the new BarrierGuard parameterized module.

Minor Analysis Improvements

Added a flow step for String.valueOf calls on tainted android.text.Editable objects.

0.2.3

0.2.2

Deprecated APIs

• The QL class FloatingPointLiteral has been renamed to FloatLiteral.

Minor Analysis Improvements

• Fixed a sanitizer of the query java/android/intent-redirection. Now, for an intent to be considered safe against intent redirection, both its package name and class name must be checked.

0.2.1

New Features

• A number of new classes and methods related to the upcoming Kotlin support have been added. These are not yet stable, as Kotlin support is still under development.
  • File::isSourceFile
  • File::isJavaSourceFile
  • File::isKotlinSourceFile
  • Member::getKotlinType
  • Element::isCompilerGenerated
  • Expr::getKotlinType
  • LambdaExpr::isKotlinFunctionN
  • Callable::getReturnKotlinType
  • Callable::getParameterKotlinType
  • Method::isLocal
  • Method::getKotlinName
  • Field::getKotlinType
  • Modifiable::isSealedKotlin
  • Modifiable::isInternal
  • Variable::getKotlinType
  • LocalVariableDecl::getKotlinType
  • Parameter::getKotlinType
  • Parameter::isExtensionParameter
  • Compilation class
  • Diagnostic class
  • KtInitializerAssignExpr class
  • ValueEQExpr class
  • ValueNEExpr class
  • ValueOrReferenceEqualsExpr class
  • ValueOrReferenceNotEqualsExpr class
  • ReferenceEqualityTest class
  • CastingExpr class
  • SafeCastExpr class
  • ImplicitCastExpr class
  • ImplicitNotNullExpr class
  • ImplicitCoercionToUnitExpr class
  • UnsafeCoerceExpr class
  • PropertyRefExpr class
  • NotInstanceOfExpr class
  • ExtensionReceiverAccess class
  • WhenExpr class
  • WhenBranch class
  • ClassExpr class
  • StmtExpr class
  • StringTemplateExpr class
  • NotNullExpr class
  • TypeNullPointerException class
  • KtComment class
  • KtCommentSection class
  • KotlinType class
  • KotlinNullableType class
  • KotlinNotnullType class
  • KotlinTypeAlias class
  • Property class
  • DelegatedProperty class
  • ExtensionMethod class
  • KtInitializerNode class
  • KtLoopStmt class
  • KtBreakContinueStmt class
  • KtBreakStmt class
  • KtContinueStmt class
  • ClassObject class
  • CompanionObject class
  • LiveLiteral class
  • LiveLiteralMethod class
  • CastConversionContext renamed to CastingConversionContext
• The QL class ValueDiscardingExpr has been added, representing expressions for which the value of the expression as a whole is discarded.

Minor Analysis Improvements

• Added models for the libraries OkHttp and Retrofit.
• Add taint models for the following File methods:
  • File::getAbsoluteFile
  • File::getCanonicalFile
  • File::getAbsolutePath
  • File::getCanonicalPath
• Added a flow step for toString calls on tainted android.text.Editable objects.
• Added a data flow step for tainted Android intents that are sent to other activities and accessed there via getIntent().
• Added modeling of MyBatis (org.apache.ibatis) Providers, resulting in additional sinks for the queries java/ognl-injection, java/sql-injection, java/sql-injection-local and java/concatenated-sql-query.

0.2.0

Breaking Changes

• The signature of allowImplicitRead on DataFlow::Configuration and TaintTracking::Configuration has changed from allowImplicitRead(DataFlow::Node node, DataFlow::Content c) to allowImplicitRead(DataFlow::Node node, DataFlow::ContentSet c).

Minor Analysis Improvements

• Improved the data flow support for the Android class SharedPreferences$Editor. Specifically, the fluent logic of some of its methods is now taken into account when calculating data flow.
  • Added flow sources and steps for JMS versions 1 and 2.
  • Added flow sources and steps for RabbitMQ.
  • Added flow steps for java.io.DataInput and java.io.ObjectInput implementations.
• Added data-flow models for the Spring Framework component spring-beans.

Bug Fixes

• The QL class JumpStmt has been made the superclass of BreakStmt, ContinueStmt and YieldStmt. This allows directly using its inherited predicates without having to explicitly cast to JumpStmt first.

0.1.0

Breaking Changes

• The recently added flow-state versions of isBarrierIn, isBarrierOut, isSanitizerIn, and isSanitizerOut in the data flow and taint tracking libraries have been removed.
• The getUrl predicate of DeclaredRepository in MavenPom.qll has been renamed to getRepositoryUrl.

New Features

• There are now QL classes ErrorExpr and ErrorStmt. These may be generated by upgrade or downgrade scripts when databases cannot be fully converted.

Minor Analysis Improvements

• Added guard precondition support for assertion methods for popular testing libraries (e.g. Junit 4, Junit 5, TestNG).

0.0.13

0.0.12

Breaking Changes

• The flow state variants of isBarrier and isAdditionalFlowStep are no longer exposed in the taint tracking library. The isSanitizer and isAdditionalTaintStep predicates should be used instead.

Deprecated APIs

• Many classes/predicates/modules that had upper-case acronyms have been renamed to follow our style-guide. The old name still exists as a deprecated alias.

New Features

• The data flow and taint tracking libraries have been extended with versions of isBarrierIn, isBarrierOut, and isBarrierGuard, respectively isSanitizerIn, isSanitizerOut, and isSanitizerGuard, that support flow states.

Minor Analysis Improvements

• Added new guards IsWindowsGuard, IsSpecificWindowsVariant, IsUnixGuard, and IsSpecificUnixVariant to detect OS specific guards.
• Added a new predicate getSystemProperty that gets all expressions that retrieve system properties from a variety of sources (eg. alternative JDK API's, Google Guava, Apache Commons, Apache IO, etc.).
• Added support for detection of SSRF via JDBC database URLs, including connections made using the standard library (java.sql), Hikari Connection Pool, JDBI and Spring JDBC.
• Re-removed support for CharacterLiteral from CompileTimeConstantExpr.getStringValue() to restore the convention that that predicate only applies to String-typed constants.
• All deprecated predicates/classes/modules that have been deprecated for over a year have been deleted.

0.0.11

New Features

• Added hasDescendant(RefType anc, Type sub)
• Added RefType.getADescendant()
• Added RefType.getAStrictAncestor()

Minor Analysis Improvements

• Add support for CharacterLiteral in CompileTimeConstantExpr.getStringValue()

0.0.10

New Features

• Added predicates ClassOrInterface.getAPermittedSubtype and isSealed exposing information about sealed classes.

0.0.9

0.0.8

Deprecated APIs

• The codeql/java-upgrades CodeQL pack has been removed. All upgrades scripts have been merged into the codeql/java-all CodeQL pack.

0.0.7

0.0.6

Major Analysis Improvements

• Data flow now propagates taint from remote source Parameter types to read steps of their fields (e.g. tainted.publicField or tainted.getField()). This also applies to their subtypes and the types of their fields, recursively.

0.0.5

Bug Fixes

• CharacterLiteral's getCodePointValue predicate now returns the correct value for UTF-16 surrogates.
• The RangeAnalysis module now properly handles comparisons with Unicode surrogate character literals.

0.0.4

Bug Fixes

• CharacterLiteral's getCodePointValue predicate now returns the correct value for UTF-16 surrogates.
• The RangeAnalysis module and the java/constant-comparison queries no longer raise false alerts regarding comparisons with Unicode surrogate character literals.
• The predicate Method.overrides(Method) was accidentally transitive. This has been fixed. This fix also affects Method.overridesOrInstantiates(Method) and Method.getASourceOverriddenMethod().