Yesterday Brian Duff of Orablogs fame wrote a short entry in his personal blog Oracle Through a Firewall which describes how you can use ssh to connect or rather tunnel through a firewall to an Oracle server outside of his firewall.
This is an excellent technique to protect access to Oracle servers to ensure that the traffic is not sniffed. There are also links to two papers on my white papers section that also describe how to use ssh to tunnel through a firewall or to encrypt network traffic between an application or application server and the database. This is a good technique to prevent sniffing of password protected role setting or even password changes in the database never mind the protection of th whole connection itself. A good technique to use with a dedicated connection protected with ssh is to use the valid node checking parameters that can be used with the listener (set up in sqlnet.ora) to ensure that the database connections are restricted to the source protected by ssh tunnelling.
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Pete Finnigan's Oracle Security Weblog
This is the weblog for Pete Finnigan. Pete works in the area of Oracle security and he specialises in auditing Oracle databases for security issues. This weblog is aimed squarely at those interested in the security of their Oracle databases.
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October 2004
- find_all_privs.sql : A script to find all privileges allocated to a user or role - 10/02/2004 by 10/02/2004
- PeteFinnigan.com Tools page updated - 10/03/2004 by 10/03/2004
- who_has_role.sql : A script to find which users and roles have been granted a role - 10/05/2004 by 10/05/2004
- Howard Rogers writes about Virtual Private databases - 10/06/2004 by 10/06/2004
- Tools page has been updated again - 10/07/2004 by 10/07/2004
- who_has_priv.sql : script to find user who have been granted a system privilege - 10/09/2004 by 10/09/2004
- Oracle remids all customers to apply Patches for alert #68 - 10/10/2004 by 10/10/2004
- preventing password leakage with SQL*Loader - 10/11/2004 by 10/11/2004
- which special characters can be used in Oracle database passwords - 10/12/2004 by 10/12/2004
- expired passwords, ORA-01045 and password changes - 10/13/2004 by 10/13/2004
- SQL Injection papers - 10/14/2004 by 10/14/2004
- where is the next monthly patch? - 10/15/2004 by 10/15/2004
- computerworld have also picked up the patch quickly story - 10/16/2004 by 10/16/2004
- Listener security guide - 10/17/2004 by 10/17/2004
- A tuning book and security? - 10/18/2004 by 10/18/2004
- An interesting SQL Injection paper - 10/19/2004 by 10/19/2004
- Internetnews article : "Customers Gripe About Oracle's Patch Plan" - 10/20/2004 by 10/20/2004
- Auditing DBA's? - 10/21/2004 by 10/21/2004
- You can search inside the SANS Oracle security step-by-step guide - 10/22/2004 by 10/22/2004
- Is setting trace a security risk? - part 1 - 10/23/2004 by 10/23/2004
- technewsworld.com says "Oracle's Security Luck Runs Out" - 10/24/2004 by 10/24/2004
- Another issue with alert 68 on AIX 32 bit - 10/25/2004 by 10/25/2004
- Writing to the alert log - 10/26/2004 by 10/26/2004
- more info on DBMS_SYSTEM.KSDWRT - 10/27/2004 by 10/27/2004
- massive data theft from a database in California - 10/28/2004 by 10/28/2004
- Can I connect to the database as the user PUBLIC? - 10/29/2004 by 10/29/2004
- Interesting question about Sarbanes-Oxley on Oracle 7.3.3 - 10/30/2004 by 10/30/2004
- Howard Rogers new paper on secure application roles - 10/31/2004 by 10/31/2004
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