Getting into server with no usb available

[Lee Tisdale]

I’m going to college and they have this challenge. See who can get into this server and change the wallpaper. Usb ports are disabled. I have two ethernet cables and a switch really needing help. I cannot access the ip adress of the server  either. 

[mikat]

so you're trying to cheat?

[TheGlenlivet]

Can you access the motherboard or drive bays?

[factorialandha]

this seems like a very strange thing to try and do, however more information would be required in order to even attempt it. however the easiest method aslong as you can get some network information using another machine and nmap to scan for it etc, you could get into its registry remotely and change the wallpaper that way.

 

However you might need credentials on the machine itself which is another item you would need to get through.

[Mira Yurizaki]

25 minutes ago, Lee Tisdale said:

I’m going to college and they have this challenge. See who can get into this server and change the wallpaper. Usb ports are disabled. I have two ethernet cables and a switch really needing help. I cannot access the ip adress of the server  either. 

What do you mean "can't access the IP address"? Every computer on a network will give its IP address, otherwise how else do computers communicate to it? If you're saying something like "SSH/Telnet/remote access" is disabled, then that'd narrow things down a bit.

[brwainer]

PS2? Serial? Use wireshark to sniff for the IP or MAC and then portscan against it to find vulnerabilities? Are you allowed to open it up?

[Jarsky]

Is the server domain joined? 

 

If so if you have domain admin rights you can either 

A) Access the admin share c$ and replace the file directly

B) You can edit the registry path to the wallpaper to one of your choosing. 

C) You can create a GPO setting the wallpaper settings and apply it to that server. 

 

Of ofcourse you can do A&B if you have the local admin details

 

 

Edit: 
If it's a proper server - if you just require physical access you can

A) Plug into PS/2 or even get a Serial to PS/2 adapter or;

B) Connect the management port to the switch and console into the server from another computer. You can then control it through your browser.  

[HKG]

Steal the server's drives, connect them to an identical computer that has USB enabled with exact same specs as the server, and boot it.