Add fuzzing infra

This commit is contained in:
Bond_009 2021-06-08 22:22:32 +02:00
parent b986cb57b7
commit f7392394fd
10 changed files with 131 additions and 0 deletions

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.gitignore vendored
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# Deployment artifacts # Deployment artifacts
dist dist
*.exe *.exe
*.dll
# BenchmarkDotNet artifacts # BenchmarkDotNet artifacts
BenchmarkDotNet.Artifacts BenchmarkDotNet.Artifacts

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fuzz/.gitignore vendored Normal file
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Findings

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0</TargetFramework>
</PropertyGroup>
<ItemGroup>
<Reference Include="Emby.Server.Implementations">
<HintPath>Emby.Server.Implementations.dll</HintPath>
</Reference>
</ItemGroup>
<ItemGroup>
<PackageReference Include="SharpFuzz" Version="1.6.2" />
</ItemGroup>
</Project>

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using System;
using Emby.Server.Implementations.Library;
using SharpFuzz;
namespace Emby.Server.Implementations.Fuzz
{
public static class Program
{
public static void Main(string[] args)
{
switch (args[0])
{
case "PathExtensions.TryReplaceSubPath": Run(PathExtensions_TryReplaceSubPath); return;
default: throw new ArgumentException($"Unknown fuzzing function: {args[0]}");
}
}
private static void Run(Action<string> action) => Fuzzer.OutOfProcess.Run(action);
private static void PathExtensions_TryReplaceSubPath(string data)
{
// Stupid, but it worked
var parts = data.Split(':');
if (parts.Length != 3)
{
return;
}
_ = PathExtensions.TryReplaceSubPath(parts[0], parts[1], parts[2], out _);
}
}
}

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/fuzz/Emby.Server.Implementations.Fuzz/Testcases/PathExtensions.TryReplaceSubPath/test1.txt/:/home/bond/dev/jellyfin/:/srv/jellyfin/

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#!/bin/sh
set -e
dotnet build -c Release ../../Emby.Server.Implementations/Emby.Server.Implementations.csproj --output bin
sharpfuzz bin/Emby.Server.Implementations.dll
cp bin/Emby.Server.Implementations.dll .
dotnet build
mkdir -p Findings
AFL_SKIP_BIN_CHECK=1 afl-fuzz -i "Testcases/$1" -o "Findings/$1" -t 5000 -m 10240 dotnet bin/Debug/net5.0/Emby.Server.Implementations.Fuzz.dll "$1"

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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0</TargetFramework>
</PropertyGroup>
<ItemGroup>
<Reference Include="Jellyfin.Server">
<HintPath>jellyfin.dll</HintPath>
</Reference>
</ItemGroup>
<ItemGroup>
<ProjectReference Include="../../MediaBrowser.Common/MediaBrowser.Common.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="SharpFuzz" Version="1.6.2" />
</ItemGroup>
</Project>

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using System;
using System.Collections.Generic;
using Jellyfin.Server.Middleware;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Features;
using Microsoft.Extensions.Primitives;
using SharpFuzz;
namespace Emby.Server.Implementations.Fuzz
{
public static class Program
{
public static void Main(string[] args)
{
switch (args[0])
{
case "UrlDecodeQueryFeature": Run(UrlDecodeQueryFeature); return;
default: throw new ArgumentException($"Unknown fuzzing function: {args[0]}");
}
}
private static void Run(Action<string> action) => Fuzzer.OutOfProcess.Run(action);
private static void UrlDecodeQueryFeature(string data)
{
var dict = new Dictionary<string, StringValues>
{
{ data, StringValues.Empty }
};
_ = new UrlDecodeQueryFeature(new QueryFeature(new QueryCollection(dict)));
}
}
}

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a%3D1%26b%3D2%26c%3D3

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#!/bin/sh
set -e
dotnet build -c Release ../../Jellyfin.Server/Jellyfin.Server.csproj --output bin
sharpfuzz bin/jellyfin.dll
cp bin/jellyfin.dll .
dotnet build
mkdir -p Findings
AFL_SKIP_BIN_CHECK=1 afl-fuzz -i "Testcases/$1" -o "Findings/$1" -t 5000 -m 10240 dotnet bin/Debug/net5.0/Jellyfin.Server.Fuzz.dll "$1"