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Add fuzzing functionality #372

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5 changes: 5 additions & 0 deletions .gitattributes
Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,8 @@
*.docx binary
*.pptx binary
*.bin binary
*.exe binary
test/Verifiable.FuzzTests/libfuzzer-dotnet-ubuntu binary
*.gz filter=lfs diff=lfs merge=lfs -text
*.jffs2 filter=lfs diff=lfs merge=lfs -text
*.zip filter=lfs diff=lfs merge=lfs -text
Expand All @@ -47,3 +49,6 @@
*.wav filter=lfs diff=lfs merge=lfs -text
*.myo filter=lfs diff=lfs merge=lfs -text
*.vsmdi filter=lfs diff=lfs merge=lfs -text
*.vsmdi filter=lfs diff=lfs merge=lfs -text


3 changes: 1 addition & 2 deletions Directory.Packages.props
Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,7 @@
<PackageVersion Include="System.Collections.Immutable" Version="8.0.0" />
<PackageVersion Include="System.Net.Http.Json" Version="8.0.0" />
<PackageVersion Include="System.Security.Cryptography.ProtectedData" Version="8.0.0" />
<PackageVersion Include="System.Text.Json" Version="8.0.4" />
<PackageVersion Include="WinSharpFuzz" Version="1.0.0" />
<PackageVersion Include="System.Text.Json" Version="8.0.4" />
<PackageVersion Include="xunit" Version="2.9.0" />
<PackageVersion Include="xunit.analyzers" Version="1.15.0" />
<PackageVersion Include="xunit.extensibility.execution" Version="2.9.0" />
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7 changes: 7 additions & 0 deletions Verifiable.sln
Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".vscode", ".vscode", "{BE64
.vscode\tasks.json = .vscode\tasks.json
EndProjectSection
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Verifiable.FuzzTests", "test\Verifiable.FuzzTests\Verifiable.FuzzTests.csproj", "{A50E91E9-51A8-490D-B92B-97C547B98539}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Expand Down Expand Up @@ -120,6 +122,10 @@ Global
{FF947DEC-29E7-4700-94A4-0E84B2917BF5}.Debug|Any CPU.Build.0 = Debug|Any CPU
{FF947DEC-29E7-4700-94A4-0E84B2917BF5}.Release|Any CPU.ActiveCfg = Release|Any CPU
{FF947DEC-29E7-4700-94A4-0E84B2917BF5}.Release|Any CPU.Build.0 = Release|Any CPU
{A50E91E9-51A8-490D-B92B-97C547B98539}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{A50E91E9-51A8-490D-B92B-97C547B98539}.Debug|Any CPU.Build.0 = Debug|Any CPU
{A50E91E9-51A8-490D-B92B-97C547B98539}.Release|Any CPU.ActiveCfg = Release|Any CPU
{A50E91E9-51A8-490D-B92B-97C547B98539}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
Expand All @@ -140,6 +146,7 @@ Global
{1B79A5A8-0754-4F72-AD32-E791F9A8ED23} = {737B175F-5A06-480C-B93F-42B31EF4EFA7}
{CD06BE0E-287F-4A01-B500-CD92465F1E2D} = {35CAB8A9-7332-4D46-BBD3-83A37A747F5E}
{BE64721C-A756-4078-B683-34AC9B639E28} = {35CAB8A9-7332-4D46-BBD3-83A37A747F5E}
{A50E91E9-51A8-490D-B92B-97C547B98539} = {942BE00F-D1A2-405C-80F3-D854D373E1FF}
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {B3AC63DE-C110-4924-B7DB-FFAC4704246F}
Expand Down
28 changes: 28 additions & 0 deletions test/Verifiable.FuzzTests/Program.cs
Original file line number Diff line number Diff line change
@@ -0,0 +1,28 @@
using SharpFuzz;
using System;
using System.Text.Json;


namespace Verifiable.FuzzTests
{
public class Program
{
public static void Main(string[] args)
{
Fuzzer.LibFuzzer.Run(json =>
{
try
{
_ = JsonSerializer.Deserialize<object>(json);
}
catch(JsonException)
{
}
catch(Exception ex)
{
Console.WriteLine($"Unexpected exception occurred: {ex.Message}");
}
});
}
}
}
13 changes: 13 additions & 0 deletions test/Verifiable.FuzzTests/Verifiable.FuzzTests.csproj
Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net9.0</TargetFramework>
<Nullable>disable</Nullable>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="SharpFuzz" />
</ItemGroup>

</Project>
73 changes: 73 additions & 0 deletions test/Verifiable.FuzzTests/dictionaries/json.dict
Original file line number Diff line number Diff line change
@@ -0,0 +1,73 @@
"0"
"7"
","
":"
"2.1e24"

"true"
"false"
"null"

"\"\""
"\"\":"

"{}"
",{}"
":{}"
"{\"\":0}"
"{{}}"

"[]"
",[]"
":[]"
"[0]"
"[[]]"

"''"
"\\"
"\\b"
"\\f"
"\\n"
"\\r"
"\\t"
"\\u0000"
"\\x00"
"\\0"
"\\uD800\\uDC00"
"\\uDBFF\\uDFFF"

"\"\":0"
"//"
"/**/"


# Things like geojson, json-ld, ...
"$ref"
"type"
"coordinates"
"@context"
"@id"
"@type"

# Strings with truncated special values
"{\"foo\":fa"
"{\"foo\":t"
"{\"foo\":nul"

"{"
"}"
"\"qty\": 1, \"qty\": -1"
"\"qty\": 1, \"qty\\ud800\": -1"
"\"qty\": 1, \"qt\\y\": -1"
"/*"
"*/"
"\""
"1.7976931348623157e+308"
"5e-324"
"9007199254740991"
"-9007199254740991"

"}="

",,"
"{\"\":"
1 change: 1 addition & 0 deletions test/Verifiable.FuzzTests/direct-crash-fuzz-sample.ps1
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
./libfuzzer-dotnet-windows.exe --target_path=bin/release/net9.0/Verifiable.FuzzTests.exe ./crash-<something> -timeout=10 -minimize_crash=1
1 change: 1 addition & 0 deletions test/Verifiable.FuzzTests/do-fuzzing.ps1
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
.\fuzz.ps1 -libFuzzer ".\libfuzzer-dotnet-windows.exe" -project ".\Verifiable.FuzzTests.csproj" -corpus .\testcases\test-1.json -dict .\dictionaries\json.dict -timeout 10
72 changes: 72 additions & 0 deletions test/Verifiable.FuzzTests/fuzz.ps1
Original file line number Diff line number Diff line change
@@ -0,0 +1,72 @@
param (
[Parameter(Mandatory = $true)]
[string]$libFuzzer,
[Parameter(Mandatory = $true)]
[string]$project,
[Parameter(Mandatory = $true)]
[string]$corpus,
[string]$dict = $null,
[int]$timeout = 10,
[int]$fork = 0,
[int]$ignore_crashes = 0,
[string]$command = "sharpfuzz"
)

Set-StrictMode -Version Latest

$outputDir = "bin"

if (Test-Path $outputDir) {
Remove-Item -Recurse -Force $outputDir
}

dotnet publish $project -c release -o $outputDir

$projectName = (Get-Item $project).BaseName
$projectDll = "$projectName.dll"
$project = Join-Path $outputDir $projectDll

$exclusions = @(
"dnlib.dll",
"SharpFuzz.dll",
"SharpFuzz.Common.dll"
)

Write-Output "Exclusions: $($exclusions -join ', ')"

$allDlls = Get-ChildItem $outputDir -Filter *.dll
Write-Output "All DLLs: $($allDlls.Name -join ', ')"

$fuzzingTargets = $allDlls `
| Where-Object { $_.Name -notin $exclusions } `
| Where-Object { $_.Name -notlike "System.*.dll" }

Write-Output "Fuzzing Targets: $($fuzzingTargets.Name -join ', ')"

if (($fuzzingTargets | Measure-Object).Count -eq 0) {
Write-Error "No fuzzing targets found"
exit 1
}

foreach ($fuzzingTarget in $fuzzingTargets) {
Write-Output "Instrumenting $fuzzingTarget"
& $command $fuzzingTarget.FullName

if ($LastExitCode -ne 0) {
Write-Error "An error occurred while instrumenting $fuzzingTarget"
exit 1
}
}

# Construct the final command string
$finalCommand = "$libFuzzer --target_path=dotnet --target_arg=$project"

if ($dict) {
$finalCommand += " -dict=$dict"
}

# Print the final command
Write-Output "Final Command: $finalCommand"

# Execute the final command
Invoke-Expression $finalCommand
Binary file not shown.
3 changes: 3 additions & 0 deletions test/Verifiable.FuzzTests/libfuzzer-dotnet-windows.exe
Git LFS file not shown
61 changes: 61 additions & 0 deletions test/Verifiable.FuzzTests/packages.lock.json
Original file line number Diff line number Diff line change
@@ -0,0 +1,61 @@
{
"version": 2,
"dependencies": {
"net9.0": {
"SharpFuzz": {
"type": "Direct",
"requested": "[2.1.1, )",
"resolved": "2.1.1",
"contentHash": "Xw5nP8CSxa6eK0gTaI2xbKhfP7VyQDdLYsfFBV6QeT9xyOzJ0a1Z3rJrmu3FTMl4DaRoMpBjFHppH+75QccddA==",
"dependencies": {
"SharpFuzz.Common": "2.2.0",
"System.Memory": "4.5.5",
"dnlib": "3.6.0"
}
},
"SIL.ReleaseTasks": {
"type": "Direct",
"requested": "[2.6.0-beta0030, )",
"resolved": "2.6.0-beta0030",
"contentHash": "iytkRVZ7tEBY00kzB55Qs0/TyfYBJ0GyvRnDPKw2AfakBWrBBTkTCdBSAGmCFoL4Wf6asRFOrenRJ6VGGhCuUQ==",
"dependencies": {
"Markdig.Signed": "0.30.2"
}
},
"dnlib": {
"type": "Transitive",
"resolved": "3.6.0",
"contentHash": "kFegKA+GR8a2mEzYH02TueIF1nNQ5lULAd9hgNwt6VBY2qNNZDYSwr63tMpKN0Lg+goDaZnaZczmP0/pDz2gaA==",
"dependencies": {
"System.Reflection.Emit": "4.7.0",
"System.Reflection.Emit.Lightweight": "4.7.0"
}
},
"Markdig.Signed": {
"type": "Transitive",
"resolved": "0.30.2",
"contentHash": "nQlUtPbp9pQFoArFSp/CZb699W6pqBG/DSpnWHgKbIuQjAu3KNjTZHaIir2vSCPJZuSMGii7tbI6K+nalh4X7w=="
},
"SharpFuzz.Common": {
"type": "Transitive",
"resolved": "2.2.0",
"contentHash": "biITWpwnMR7HUp43lAGU97DWq/4LfyXqqhuOK0Z4IuRP97KjQMOe/GKq3wE1KY21gNrc7OPO9HbAtQUvMKTImA=="
},
"System.Memory": {
"type": "Transitive",
"resolved": "4.5.5",
"contentHash": "XIWiDvKPXaTveaB7HVganDlOCRoj03l+jrwNvcge/t8vhGYKvqV+dMv6G4SAX2NoNmN0wZfVPTAlFwZcZvVOUw=="
},
"System.Reflection.Emit": {
"type": "Transitive",
"resolved": "4.7.0",
"contentHash": "VR4kk8XLKebQ4MZuKuIni/7oh+QGFmZW3qORd1GvBq/8026OpW501SzT/oypwiQl4TvT8ErnReh/NzY9u+C6wQ=="
},
"System.Reflection.Emit.Lightweight": {
"type": "Transitive",
"resolved": "4.7.0",
"contentHash": "a4OLB4IITxAXJeV74MDx49Oq2+PsF6Sml54XAFv+2RyWwtDBcabzoxiiJRhdhx+gaohLh4hEGCLQyBozXoQPqA=="
}
}
}
}
1 change: 1 addition & 0 deletions test/Verifiable.FuzzTests/testcases/test-1.json
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
{"menu":{"id":1,"val":"X","pop":{"a":[{"click":"Open()"},{"click":"Close()"}]}}}
4 changes: 1 addition & 3 deletions test/Verifiable.Tests/Verifiable.Tests.csproj
Original file line number Diff line number Diff line change
Expand Up @@ -13,9 +13,7 @@

<ItemGroup>
<PackageReference Include="dotNetRdf" />
<PackageReference Include="JunitXml.TestLogger" />
<PackageReference Include="SharpFuzz" />
<PackageReference Include="WinSharpFuzz" />
<PackageReference Include="JunitXml.TestLogger" />
<PackageReference Include="CsCheck" />
<PackageReference Include="xunit" />
<PackageReference Include="xunit.extensibility.execution" />
Expand Down
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