Category Archives: 12cR2

DOAG 2017 Oracle 12c Release 2 Datenbank-Sicherheit in a Nutshell

DOAG Konferenz 2017Below you will find a list of the different demo scripts used during the DOAG training day 2017 Oracle 12c Release 2 Datenbank-Sicherheit in a Nutshell. In general the script do need a SCOTT or a HR demo schema. Some of the scripts may have more requirements eg. Kerberos configuration, Oracle Enterprise User Security etc. The scripts are available free for anyone to use. I do not accept any responsibility for any damage, errors or anything whatsoever caused by running or using these scripts. The scripts have been tested thoroughly but as there are many platforms, Oracle versions and possible configurations, it does not mean that they will work for you when they work for me. Please check the file header for further information on the scripts, references etc before running them especially on production system.


Script Description
 01_authentication.sql Show authentication information of the connected user and its USERENV context
 02_privileges.sql Database privileges analysis demo
 03_vpd.sql Virtual Private Database demo with default and column masking.
 04_audit.sql Unified audit demo script
 05_redaction.sql Oracle Data Redaction demo script
 06_tsdp_redact.sql Transparent Sensitive Data Protection and Data Redaction demo
 07_tsdp_audit.sql Transparent Sensitive Data Protection and Unified Audit demo
 aui.sql Script to show authentication information of the connected user and from its USERENV context.
 hip.sql List init.ora parameter including hidden parameters.
 create_password_hash.sql Calculate Oracle DES based password hash from username and password.
 verify_user_password.sql Wrapper script to check if a user has a weak DES based password. Passwords will be displayed.
 verify_user_password_no.sql Wrapper script to check if a user has a weak DES based password. Passwords will not be displayed
 verify_alluser_passwords.sql Wrapper script to check if any user in sys.user$ has a weak DES based password. Passwords will be displayed.
 verify_alluser_passwords_no.sql Wrapper script to check if any user in sys.user$ has a weak DES based password. Passwords will not be displayed.
 verify_passwords.sql Check if user in sys.user$ has a weak DES based password
 verify_password_hash.sql Check if user has a weak password

Oracle CPU / PSU Announcement October 2017

The Oracle open world 2017 is over, the dust just settled down. A perfect time for Oracle to release the October critical patch advisory. With not less than 270 new security vulnerability fixes across the Oracle products it seems to be a rather huge update. From the DB perspective it is nothing unusual. It contains 6 new security fixes for vulnerabilities on Oracle Database, and 2 of the vulnerabilities can be used remotely without authentication, but none of the vulnerabilities affect Oracle client installations. Overall the highest CVSS Rating is 8.8 for Oracle Database Server on Windows respectively 7.8 for on Windows and Linux. According to Oracle the following components are affected:

  • Core RDBMS
  • Java VM
  • XML Database
  • RDBMS Security
  • Spatial (Apache Groovy)
  • WLM (Apache Tomcat)

Not all of these components are installed by default. It is therefore recommended that you check your database environment to see if it is necessary to apply this critical patch update. OK, I guess Core RDBMS is part of you database setup 🙂

For Oracle Fusion Middleware the situation looks somehow different. The Critical Patch Update includes not less than 40 fixes for vulnerabilities. Up to 26 vulnerabilities may be remotely exploitable without authentication and are rated with the highest CVSS rating of 9.8.

More details about the patch will follow soon on the Oracle Security Pages.

By the way, Oracle improved the table which lists the affected products and components in there advisory. Oracle Database is not a the top of the table any more.

Articles in DOAG Red Stack Magazin

A while ago I wrote two articles for the DOAG Red Stack Magazin. In the meantime both articles have been published. For this reason I use the opportunity to make the PDF versions of the articles available on The articles are written in German and available as Trivadis version as well Red Stack version. Although the articles versions differ only in the number of typos and layout.

None of the articles are currently available in english. On request I will write also articles about Oracle Unified Directory in English in the future. However, currently I still have a lot of ideas for blog posts about database security, enterprise user security and unified directory on my to-do list. And blog posts I usually write in english… 🙂

DOAG Webinar Oracle 12.2 New Security Features

A couple of days ago I’ve successfully finished the DOAG Webinar on Oracle 12c Release 2 new Security Feature. It was a great opportunity to discuss the security enhancements in the latest Oracle database release. This release introduces some new security features that simplify the secure operation of on-premises or cloud-based databases. Especially the online encryption of tablespaces with TDE.

Based on initial experiences and insights, the following topics have been discussed:

  • Authentication
  • Authorization
  • Database Auditing with Unified Audit
  • Encryption with Transparent Data Encryption
  • As well as an overview of further innovations in database security

The slides and the recording of the webinar is available in German over the following links:

EU GDPR, MS SQL Server 2016 and Oracle Security

I’ve just updated the list of my public appearances and planned events. For once, no just Oracle Events 🙂 I’ll speak about the new EU GDPR and its impact on databases in a Trivadis regional customer event together with my colleague Stephan Hurni. Beside this two events I’ll hold a webinar on Oracle 12c Release 2 new security features. This webinar is organised by DOAG.

Unfortunately all these events are in german. No matter, I’m about to register the one or other topic at upcoming Call For Papers. If the speeches get approved I’ll update my list of public appearance.

Oracle On-Premises soon available

It seems that Oracle brings us the new release with the first “spring rays”. Tonight Oracle has Updates the MOS Note 742060.1 Release Schedule of Current Database Releases. It now includes as well sections for Oracle public cloud releases, on-premises engineered systems as well on-premises server releases. In particular the section on-premises server release has now a release date for Oracle According to this, Oracle will be available for Linux x86-64, Solaris SPARC and Solaris x86-64 by mid of march. For the other platforms like Windows, AIX etc we have to wait until Q2. As posted earlier the documentation for the new release is available since a couple of weeks. There is no reason not to start with the engineering work for the new release.

By the way, there are some other changes as well on this MOS Note. The attentive reader has seen, that Oracle has again extended their Free Extended Support for until Dec 31, 2018. Unfortunately there are some contradictions with other MOS Notes like 161818.1 and 1067455.1. On these notes the Free Extended Supports ends earlier. You probabely should clarify your support status before planing to keep your production database until end of 2018.

Some references and links to MOS Notes:

Oracle CPU / PSU Announcement January 2017

Oracle has published the first Critical Patch Update in 2017. It’s quite a huge update with not less than 270 new security vulnerability fixes across the Oracle products. For the Oracle Database itself are 5 security fixes available respectively 2 security fixes for the Oracle Database Server and 3 security fixes for Oracle Secure Backup and Oracle Big Data Graph.
Neither of the two vulnerabilities for Oracle Databases are remotely exploitable without authentication. None of these fixes are applicable to client-only installations.

The highest CVSS Base Score of vulnerabilities affecting Oracle Database Server is 9.0. The following components are affected:

  • OJVM
  • RDBMS Security / Local Logon

Over all the PSU for Oracle Database Server itself is relatively small. The tests for the Trivadis CPU-Report will show if there are any issues with this PSU respectively SPU.

It seems that a bunch of Patch’s are not yet available. Oracle list the follow Post Release Patches beside the PSU and SPU for Oracle Database Server

Patch Number Patch Platform Availability
24968615 Database Proactive Bundle Patch HP-UX Itanium (64-Bit) & AIX (64-Bit) Expected: Wednesday 18-Jan-2017
25395111 Oracle Application Testing Suite BP All Platforms Expected: Wednesday 18-Jan-2017
25115951 Microsoft Windows BP Windows 32-Bit and x86-64 Expected: Tuesday 24-Jan-2017
25112498 Oracle JavaVM Component Microsoft Windows Bundle Patch Windows 32-Bit and x86-64 Expected: Tuesday 24-Jan-2017
24918318 Quarterly Full Stack download for Exadata (Jan2017) BP Linux x86-64 and Solaris x86-64 Expected: Thursday 26-Jan-2017
24918333 Quarterly Full Stack download for SuperCluster (Jan2017) BP Solaris SPARC 64-Bit Expected: Thursday 26-Jan-2017

More details about the patch will follow soon on the Oracle Security Pages.