RE: pen-test on a windows 2003 server box whit MS-SQL and Terminal Services
From: DUBRAWSKY, IDO (CALLISMA) (id3878_at_sbc.com)
Date: Thu, 9 Jun 2005 10:29:26 -0500 To: "Erik Pace Birkholz" <firstname.lastname@example.org>, "Hugo Vinicius Garcia Razera" <email@example.com>, <firstname.lastname@example.org>
Another option you could try is to use ettercap to insert your
laptop/pen-test system in as a Man-in-the-Middle between the SQL server
and client systems and then capture the port 1433 traffic using
tcpdump/ethereal/your favorite packet capturing program. This will
definitely yield the 'sa' password (as well as others).
If you're using Windows on your attack platform, consider using Cain &
Abel as it can do the Man-in-the-Middle/SQL password capture all in one.
-- Ido Dubrawsky, CISSP Senior Security Consultant SBC/Callisma (571) 633-9500 (Office) (202) 213-9029 (Mobile) > -----Original Message----- > From: Erik Pace Birkholz [mailto:email@example.com] > Sent: Thursday, June 09, 2005 4:06 AM > To: Hugo Vinicius Garcia Razera; firstname.lastname@example.org > Cc: Erik Pace Birkholz > Subject: RE: pen-test on a windows 2003 server box whit > MS-SQL and Terminal Services > > > Hugo, > > Based on the limited info you have provided, here is my advice. > > Have you done UDP port scans? If you haven't done so, scan to > determine > what UDP ports are open. Depending on what you find this could be > helpful. For example, if SNMP is available with a default or guessable > community name it will provide usernames among other goodies. > > Re: obtaining the SQL version; since the OS is Win3k the SQL > server will > likely be SQL 2000 with SP3 or later. If you really want to > find out try > SQLVer (www.sqlsecurity.com) as Chip already mentioned and > try SQLRecon > (www.SpecialOpsSecurity.com -click on LABS). > > With that said don't give up on the SQL "SA" brute force > attacks. There > is no account lock out for SA so rock and roll. SQLDict.exe > works pretty > well if you have a big dictionary file. Another option is ForceSQL.exe > because it brute forces an account (sa) based on a user specified > character set (charset.txt) up to a user specified max > password length. > > You also mentioned DNS: 53. Not sure if you are referring to > UDP or TCP? > If it is TCP then you should try a zone transfer. > > Also don't forget full (1-65535) TCP port scans and source port scans > (SRC=20,53,88,80,etc...) > > Finally use tracerouting, hping2, tcpdump, etc to determine if the > blocking ACLs are on the host or a network device. Something is > facilitating the firewalling that is hiding juicy MS specific > ports like > TCP 135 and 445. Is it ICF, IPSec, a personal firewall, network > firewall, perimeter router or what? Once you know this it will help > direct your attempts to subvert that protection and get > exposure to more > ports on the target. > > Let us know how it goes! > > Good luck, > > Erik Pace Birkholz > www.SpecialOpsSecurity.com > > > > -----Original Message----- > From: Hugo Vinicius Garcia Razera [mailto:email@example.com] > Sent: Tuesday, June 07, 2005 4:01 PM > To: firstname.lastname@example.org > Subject: pen-test on a windows 2003 server box whit MS-SQL > and Terminal > Services > > Hi every one, I'm doing a pen test on a client, and have found that he > have a windows 2003 server box on one segment of his public addresses > this is his dns/web/mail server: > > - mssql :1433 > - terminal services :3389 > - iis 6 :80 > - smtp :25 > - pop3 :110 > - dns : 53 > - ftp : filtered > > ports opened, i logged on the terminal services port whit the winxp > remote desktop utility and it connects perfectly. > > i tried a dictionari atack on mssql server whit the "sa" account and > others user names i collected. > Hydra from THC was the tool, but no succes on this atack. > also tried the tsgrinder for terminal services , but no success. > > > well here come some questions: > > - What others Usernames should i try for sql and terminal services? > i tried whit "sa" for sql and "Administrator" for TS > > - Any one knows how could i identify what version of sql server is > running. > - What other services of this host can be exploited? > > any comments, ideas, suggestions would be greatly appreciated. > > Hugo Vinicius Garcia Razera >