Penetration Testing mailing list archives
Re: SQL injection
From: "Davi Ottenheimer" <DaviO () westmarine com>
Date: Thu, 09 Jun 2005 09:07:22 -0700
All relational databases are susceptible to SQL injection attacks. Here's the "official" MS intro/guide to countermeasures: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetsec/html/THCMCh18.asp http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetsec/html/THCMCh14.asp Above all, as others have mentioned, if the database port is exposed then risk of compromise is significantly higher. A DB and application should be behind a filter/firewall and traffic should be restricted to trusted systems...this is not only a best practice, it is now included in regulations such as the Payment Card Industry Security Standard. Hope that helps, Davi
Faisal Khan <faisal () netxs com pk> 06/09/05 08:37AM >>>
Pardon the ignorance, but is there any hardware/software based device that can outright prevent/mitigate (detect?) SQL injections? Would an IDS be able to prevent this? At 08:29 PM 6/9/2005, you wrote:
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 -- Ido Dubrawsky, CISSP Senior Security Consultant SBC/Callisma (571) 633-9500 (Office) (202) 213-9029 (Mobile)-----Original Message----- From: Erik Pace Birkholz [mailto:erik () specialopssecurity com] Sent: Thursday, June 09, 2005 4:06 AM To: Hugo Vinicius Garcia Razera; pen-test () securityfocus com 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:hviniciusg () gmail com] Sent: Tuesday, June 07, 2005 4:01 PM To: pen-test () securityfocus com 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
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Current thread:
- RE: SQL injection Todd Towles (Jun 09)
- <Possible follow-ups>
- Re: SQL injection Davi Ottenheimer (Jun 09)
- RE: SQL injection BĂ©noni MARTIN (Jun 09)
- Re: RE: SQL injection travis . barlow (Jun 09)
- RE: SQL injection Ofer Shezaf (Jun 09)
- RE: SQL injection Hecber Cordova (Jun 09)
- Exploit Repositories and Due Diligence Jeff (Jun 09)
- RE: Exploit Repositories and Due Diligence Leandro Reox (Jun 09)
- RE: Exploit Repositories and Due Diligence Sahir Hidayatullah (Jun 10)
- RE: Exploit Repositories and Due Diligence Carl Tucker (Jun 14)
- RE: Exploit Repositories and Due Diligence Carl Tucker (Jun 20)
- RE: SQL injection Hecber Cordova (Jun 09)
- Re: SQL injection Tim (Jun 09)