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Stéphane Haby

SQL Server Security: Are your databases ready for the GDPR?

By | Database Administration & Monitoring, SQL Server, Technology Survey | No Comments

The GDRP (General Data Protection Regulation), voted in 2016, will be applied in the European Union soon (May 25, 2018). We heard a lot of this new directive. The goal is to improve the protection and confidentiality of personally identifiable information for every European citizen. Quid of Switzerland? Read the article of Gregory here. A personal data is information that identifies a natural person, directly or indirectly. It can be a name, a photograph, an…

 
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Franck Pachot

Keep your orapw password file secure

By | Oracle | 2 Comments

This is a small demo I did when I’ve found a database password file (orapw) lying around in /tmp with -rw-rw-rw- permissions, to show how this is a bad idea. People think that the orapw file only contains hashes to validate a password given, and forget that it can be used to connect to a remote database without password.  

 
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Stéphane Savorgnano

Pass Summit 2017: how to bypass SQL Server security

By | Database Administration & Monitoring | No Comments

Last Friday I saw a very interesting session in Pass Summit 2017 about how to Bypass, or Ensure, SQL Server security by Matt Martin. Matt explained us how to bypass SQL Server security with the complicity of your SQL Server DBA. Msdb is the most powerful database to get stuff done: mail, jobs… so let’s have a look how to take the power within a SQL Server instance. Start a job under SQLAgentOperator role SQLAgentOperator…

 
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Nathan Courtine

PASS SUMMIT 2017 – SQL Server Security

By | Database Administration & Monitoring | No Comments

Today is the first day of the PASS SUMMIT 2017 in Seattle (WA). The weather is cloudy and we have only 11°C… but where is the problem? Everything happens inside! (at the Convention Center). In this blog, I will make a summary of main attack vectors against MSSQL environments, based on Argenis FERANDEZ’s session called “Modern Security Attack Vectors Against SQL Server Environments”. METASPLOIT Metasploit is a penetration testing framework to exploit known security vulnerabilities….

 
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Stéphane Haby

SQL Server 2016: patching CU with R Services

By | Database Administration & Monitoring, Database management | No Comments

As a good DBA, I begin to be up to date with all Cumulative Update (CU) by my customers. It is the first time that I run an update for SQL Server 2016 with the CU 3. I download the CU on Microsoft website and I begin my patching campaign on all SQL server 2016 instances. The first one is quick & successful. The second one, with R Services, is a little bit different. After,…

 
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Stéphane Haby

SQL Server 2016: Does Dynamic Data Masking works with INSERT INTO and SELECT INTO commands?

By | Database Administration & Monitoring | No Comments

I wonder how works Dynamic Data Masking (DDM) with these two commands INSERT INTO  and SELECT INTO. First, I create a table and add some “sensitive data”: USE [DDM_TEST] GO CREATE TABLE [dbo].[Confidential]( [ID] [int] IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED, [Name] [nvarchar](70)NULL, [CreditCard] [nvarchar](16)NULL, [Salary] [int] NULL, [Email] [nvarchar](60)NULL) insert into [dbo].[Confidential]([Name],[CreditCard],[Salary],[Email]) values (N’Stephane’,N’3546748598467584′,113459,N’sts@dbi-services.com’) insert into [dbo].[Confidential]([Name],[CreditCard],[Salary],[Email]) values (N’David’,N’3546746598450989′,143576,’dab@dbi-services.com’) insert into [dbo].[Confidential]([Name],[CreditCard],[Salary],[Email]) values (N’Nathan’,N’3890098321457893′,118900,’nac@dbi-services.com’) insert into [dbo].[Confidential]([Name],[CreditCard],[Salary],[Email]) values (N’Olivier’,N’3564890234785612′,98000,’olt@dbi-services.com’) insert into [dbo].[Confidential]([Name],[CreditCard],[Salary],[Email]) values (N’Alain’,N’9897436900989342′,85900,’ala@dbi-services.com’)…

 
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Stéphane Haby

SQL Server 2016: Does Dynamic Data Masking work with Temporal Table?

By | Database Administration & Monitoring | No Comments

In the last IT Tagen 2016, I presented the Dynamic Data Masking (DDM) and how it worked. To add a little fun, I applied the DDM to a temporal table to see if the history table inherits also from DDM’s rules. In this blog, I explain all the different steps to reproduce my last demo. Step 1: Create the table and the temporal table in the database DDM_TEST USE [DDM_TEST] GO CREATE TABLE [dbo].[Confidential]( [ID]…

 
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Stéphane Savorgnano

SQL Server 2016: Dynamic Data Masking and database role

By | Database Administration & Monitoring, Technology Survey | 4 Comments

Last week, dbi services organized an event named “SQL Server 2016: what’s new?” in Lausanne, Basel and Zurich. I would take the opportunity to say again a big thank you to everyone which joined us. During my session some questions concerning the new functionality Dynamic Data Masking were asked. In fact data are masked for some roles and not for some others. Let’s try to clarify that. I will use the same script I used…

 
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Daniel Westermann

Securing your connections to PostgreSQL by using SSL

By | Database Administration & Monitoring | 5 Comments

Security is a big topic today and in the news almost every day. As the database usually holds sensitive data this data must be well protected. In most cases this is done by encrypting critical data inside the database and decrypt only when requested. But this is not all: When a client reads the data it is decrypted inside the database and then send back over the network unencrypted. What do you win with such…

 
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