tyranid / exploitremotingservice Goto Github PK

Can this be exploited over WCF/Http bindings?

Any ideas on the following?

PS C:\Users\redacted\ExploitRemotingService-master\ExploitRemotingService-master\ExploitRemotingService\bin\x86\Debug> .\ExploitRemotingService.exe tcp://192.168.74.65:17001/Servers ver
Error, couldn't detect version, using host: 4.0.30319.42000
Detected version 4 server
System.Runtime.Remoting.RemotingException: Error deserializing message. ---> System.NotSupportedException: http://go.microsoft.com/fwlink/?LinkId=390633
--- End of inner exception stack trace ---
at ExploitRemotingService.CustomChannel.MakeCall(String path, MethodBase mi, Object[] cmdargs) in C:\Users\redacted\ExploitRemotingService-master\ExploitRemotingService-master\ExploitRemotingService\CustomChannel.cs:line 252
at ExploitRemotingService.CustomChannel.MakeCall[T](String path, MethodBase mi, Object[] cmdargs) in C:\Users\redacted\ExploitRemotingService-master\ExploitRemotingService-master\ExploitRemotingService\CustomChannel.cs:line 243
at ExploitRemotingService.Program.CreateRemoteClassExploit(CustomChannel channel) in C:\Users\redacted\ExploitRemotingService-master\ExploitRemotingService-master\ExploitRemotingService\Program.cs:line 362
at ExploitRemotingService.Program.CreateRemoteClass(CustomChannel channel) in C:\Users\redacted\ExploitRemotingService-master\ExploitRemotingService-master\ExploitRemotingService\Program.cs:line 401
at ExploitRemotingService.Program.Main(String[] args) in C:\Users\redacted\ExploitRemotingService-master\ExploitRemotingService-master\ExploitRemotingService\Program.cs:line 623

I have a service using tcp and uses binaryformatter, TypeFilterLevel.Full. (Maybe I need to go back and verify if this was on the Client or Server provider though!)

Using useser I first get an exception about the Hastable being unable to cast to IMessage, but assume this is normal as I get that exception when testing against the example service.

Then I get:

This remoting proxy has no channel sink which means either the server has no registered server channels that are listening, or this application has no suitable client channel to talk to the server.

The only config option on the server side channel I can see that could affect it is supressChannelData but its not particularly clear what this does from any of the documentation.

I've tried adding properties["supressChannelData"] = true; to the example service but it doesn't seem to make a difference.

Also in the readme you state 'The vulnerable service provided in this repo has intentionally disabled the security fix' but its not clear exactly what line does this?

Class ChannelUriFixingClientChannelSinkProvider is missing. It wasn't resolved whatever I do.

When running command: .\ExploitRemotingService.exe --uselease --autodir --ver=2 tcp://<ip>:23453/Server, I got an exception:

System.ArgumentException: Couldn't get instance of System.IO.DirectoryInfo from server.
   at ExploitRemotingService.SerializerRemoteClass.Cast[T]()
   at ExploitRemotingService.Program.ExecuteCommand(IRemoteClass c)
   at ExploitRemotingService.Program.Main(String[] args)

The remote server is runing RemotingService under C# .NET 3.5 on Windows Server 2008?