netcat -e

Devilz · 12-27-2007, 06:02 AM

I have been trying to experiment with netcat recently, however I cannot use the -e option. I am using Fedora 8, and using nc that comes from my repository.
When I try to use:

Code:

nc -l xxxx -e xxxx

I get:

Code:

nc: invalid option -- e

I'm pretty new to netcat, so it may be an obvious mistake, so any help would be appreciated.

Devilz.

acid_kewpie · 12-27-2007, 03:28 PM

if you check the nc manpage of help on fc8 you'll see that that option isn't mentioned at all, so the error is quite right.

Devilz · 12-27-2007, 04:55 PM

Alright, I had a feeling it was something like that.
So is there any other way for me to have it use another program, like the -e option does?

Thanks, Devilz.

jlinkels · 01-01-2008, 08:49 AM

Can you please explain what you expect the --e option to do? If you can explain that we might be able to recommend something else.

jlinkels

Devilz · 01-02-2008, 09:36 PM

The -e option could be used like this:

Code:

nc -l -p xxxx -e /bin/sh

That way, everything received will be used a command in the shell.

I figured out the problem though, the rpm version doesn't have the -e option for some reason, so I simply downloaded the .tar.gz and it works fine.

Devilz.

acid_kewpie · 01-03-2008, 02:05 AM

i saw various things relating to security flaws... slightly ironic but might be relevant.