Package com.h3xstream.findsecbugs

Class ReDosDetector

  • All Implemented Interfaces:
    edu.umd.cs.findbugs.Detector, edu.umd.cs.findbugs.Priorities, org.apache.bcel.classfile.Visitor
    public class ReDosDetector
extends edu.umd.cs.findbugs.bcel.OpcodeStackDetector
    This detector does minimal effort to find potential REDOS.

    It will identify pattern similar to : (( )+)+

    It will not identify pattern of equivalence (such as(aa|a)). It is far more complex to identify.

    For more advanced Regex analysis: Safe Regex

    • Nested Class Summary

      • Nested classes/interfaces inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector

        edu.umd.cs.findbugs.bcel.OpcodeStackDetector.WithCustomJumpInfo

    • Field Summary

      • Fields inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector

        stack

      • Fields inherited from class edu.umd.cs.findbugs.visitclass.DismantleBytecode

        codeBytes, lineNumberTable, M_BR, M_CP, M_INT, M_PAD, M_R, M_UINT

      • Fields inherited from interface edu.umd.cs.findbugs.Priorities

        EXP_PRIORITY, HIGH_PRIORITY, IGNORE_PRIORITY, LOW_PRIORITY, NORMAL_PRIORITY

    • Constructor Summary

      Constructors 
      Constructor Description
      ReDosDetector​(edu.umd.cs.findbugs.BugReporter bugReporter)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void sawOpcode​(int seen)  

      • Methods inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector

        afterOpcode, beforeOpcode, getStack, isUsingCustomUserValue, visitCode

      • Methods inherited from class edu.umd.cs.findbugs.BytecodeScanningDetector

        getClassContext, report, shouldVisitCode, visitClassContext

      • Methods inherited from class edu.umd.cs.findbugs.visitclass.DismantleBytecode

        areOppositeBranches, atCatchBlock, getBranchFallThrough, getBranchOffset, getBranchTarget, getClassConstantOperand, getClassDescriptorOperand, getCodeByte, getConstantRefOperand, getDefaultSwitchOffset, getDottedClassConstantOperand, getFieldDescriptorOperand, getIntConstant, getLongConstant, getMaxPC, getMethodDescriptorOperand, getNameConstantOperand, getNextCodeByte, getNextOpcode, getNextPC, getOpcode, getPC, getPrevOpcode, getRefConstantOperand, getRefFieldIsStatic, getRegisterOperand, getSigConstantOperand, getStringConstantOperand, getSwitchLabels, getSwitchOffsets, getXClassOperand, getXFieldOperand, getXMethodOperand, isBranch, isMethodCall, isRegisterLoad, isRegisterStore, isRegisterStore, isReturn, isShift, isSwitch, isWideOpcode, printOpCode, sawBranchTo, sawClass, sawDouble, sawField, sawFloat, sawIMethod, sawInt, sawLong, sawMethod, sawRegister, sawString, visit

      • Methods inherited from class edu.umd.cs.findbugs.visitclass.AnnotationVisitor

        getAnnotationParameterAsString, getAnnotationParameterAsStringArray, visitAnnotation, visitAnnotation, visitParameterAnnotation, visitParameterAnnotation, visitSyntheticParameterAnnotation

      • Methods inherited from class edu.umd.cs.findbugs.visitclass.PreorderVisitor

        amVisitingMainMethod, asUnsignedByte, doVisitMethod, getClassDescriptor, getClassName, getCode, getConstantPool, getDottedClassName, getDottedFieldSig, getDottedMethodSig, getDottedSuperclassName, getField, getFieldDescriptor, getFieldIsStatic, getFieldName, getFieldSig, getFullyQualifiedFieldName, getFullyQualifiedMethodName, getMethod, getMethodDescriptor, getMethodName, getMethodSig, getMethodVisitOrder, getNumberArguments, getNumberMethodArguments, getPackageName, getSizeOfSurroundingTryBlock, getSizeOfSurroundingTryBlock, getSourceFile, getStringFromIndex, getSuperclassName, getSurroundingCaughtExceptions, getSurroundingCaughtExceptions, getSurroundingTryBlock, getSurroundingTryBlock, getThisClass, getXClass, getXField, getXMethod, hasInterestingClass, hasInterestingMethod, isVisitMethodsInCallOrder, setupVisitorForClass, setVisitMethodsInCallOrder, shouldVisit, toString, visitAfter, visitAfter, visitAnnotationDefault, visitAnnotationEntry, visitBootstrapMethods, visitConstantInvokeDynamic, visitConstantMethodHandle, visitConstantMethodType, visitConstantModule, visitConstantPackage, visitConstantPool, visitEnclosingMethod, visitingField, visitingMethod, visitInnerClasses, visitJavaClass, visitLineNumberTable, visitLocalVariableTable, visitMethodParameters, visitParameterAnnotationEntry, visitStackMap, visitStackMapEntry

      • Methods inherited from class edu.umd.cs.findbugs.visitclass.BetterVisitor

        clone, report, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitCodeException, visitConstantClass, visitConstantDouble, visitConstantFieldref, visitConstantFloat, visitConstantInteger, visitConstantInterfaceMethodref, visitConstantLong, visitConstantMethodref, visitConstantNameAndType, visitConstantString, visitConstantUtf8, visitConstantValue, visitDeprecated, visitExceptionTable, visitField, visitInnerClass, visitLineNumber, visitLocalVariable, visitLocalVariableTypeTable, visitMethod, visitSignature, visitSourceFile, visitSynthetic, visitUnknown

      • Methods inherited from interface org.apache.bcel.classfile.Visitor

        visitConstantDynamic, visitMethodParameter, visitModule, visitModuleExports, visitModuleMainClass, visitModuleOpens, visitModulePackages, visitModuleProvides, visitModuleRequires, visitNestHost, visitNestMembers

    • Constructor Detail

      • ReDosDetector

        public ReDosDetector​(edu.umd.cs.findbugs.BugReporter bugReporter)

    • Method Detail

      • sawOpcode

        public void sawOpcode​(int seen)
        Specified by:
        sawOpcode in class edu.umd.cs.findbugs.bcel.OpcodeStackDetector