Two Things I Would Change in SSISDB Setup (SQLServerCentral 3/29/2016)

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Two Things I Would Change in SSISDB Setup Webinar - Redgate DLM Demo (with TFS, TFS Build & Microsoft Release Management) Introduction to Protecting SQL Server with Azure Site Recovery ETL Auditing (From the SQLServerCentral Blogs) SQLBits in Space (From the SQLServerCentral Blogs)

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If you pay attention to security issues in software, you've probably heard about man-in-the-middle attacks. These can occur more frequently than you expect, though inside of a company, it's more unlikely that you'll experience one if you have some fairly basic security controls on your network.

However, if you invite someone inside of your network, such as a consultant of some sort, you should be more vigilent. There's a great post showing how someone can execute a MITM attack against SQL Server. It's in depth, showing exactly how packet captures lead to the ability to hijack a session and create a new login.

If this seems like a lot of work, it is. However once the attack is built, this could easily be run by anyone inside of your network. I could see consultants running this type of attack and storing credentials they've created for use many months later. These could be sold later to someone that might use them in a website or other application to gather data from outside of your network.

Defending against these types of attacks is hard. Certainly not allowing free access for consultants is key, though a quick command line execution of a script might not be something that's easily noticed. At the very least, sysadmin logins should be monitored, and any changes to this list investigated immediately. However, I'd also say any built in server role changes should be checked and verified as being valid alterations. Even your SQL logins shouldn't change without administrators being aware.

Monitoring your systems is a big part of security. You might not prevent many of the attacks, but knowing they've taken place allows you to respond and potentially protect sensitive data.

Steve Jones from SQLServerCentral.com

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Two Things I Would Change in SSISDB Setup

Ben Kubicek from SQLServerCentral.com

I suggest these two changes to the SSISDB setup to prevent issues down the road. More »

Webinar - Redgate DLM Demo (with TFS, TFS Build & Microsoft Release Management)

Press Release from SQLServerCentral.com

Redgate’s Arneh Eskandari and Microsoft SQL Server MVP, Steve Jones, will show you how Redgate’s DLM (Database Lifecycle Management) solution works to improve your database development and deployment processes. Today 12noon EDT More »

Introduction to Protecting SQL Server with Azure Site Recovery

Additional Articles from Database Journal

Microsoft cloud platform allows you to provide resiliency for your on-premises SQL Server deployments. Marcin Policht describes this functionality, available as part of the Azure Site Recovery solution. More »

From the SQLServerCentral Blogs - ETL Auditing

Tim Mitchell from SQLServerCentral Blogs

It happens far too often: Once an ETL process has been tested and executes successfully, there are no further checks... More »

From the SQLServerCentral Blogs - SQLBits in Space

Steve Jones from SQLServerCentral Blogs

It’s coming in May. The official UK SQL Server 2016 launch event is SQL Bits and the conference returns to... More »

Question of the Day

Today's Question (by Peter McLean):

What happens when running the following script?

CREATE TABLE dbo.PkTest ( NameVARCHAR(5) NOT NULL ) INSERT INTO dbo.PkTest (Name) VALUES('A1234') INSERT INTO dbo.PkTest (Name) VALUES('A123 ') INSERT INTO dbo.PkTest (Name) VALUES('A123') SELECTDISTINCT Name FROMdbo.PkTest ALTER TABLE dbo.PkTest ADD CONSTRAINT [PK_PkTest] PRIMARY KEY CLUSTERED (Name)

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Yesterday's Question of the Day

Yesterday's Question (by Steve Jones):

I am working with Row Level Security and have a function that determines if a particular user should have access to rows in a table. My function looks like this:

CREATE FUNCTION DBO.RLS_Customer_Check (@username AS sysname) RETURNS TABLE WITH SCHEMABINDING AS RETURN SELECT 1 AS RLS_Customer_Check_Result WHERE @username = USER_NAME() GO

I have a table, CustomerAccessList, with a column for CustomerID and UserName. I add a filter predicate as follows:

CREATE SECURITY POLICY rls_CustomerFilter ADD FILTER PREDICATE dbo.rls_customer_check(customerid) ON dbo.CustomerAccessList; GO

The bsmith user can only view the rows that have "bsmith" in the username column. The current table looks like this:

CustomerID UserName ---------- -------- 1 bsmith 2 sjones 3 bsmith

What happens when bsmith runs this batch?

INSERT dbo.CustomerAccessList ( CustomerID, username ) VALUES ( 5 -- CustomerID , 'sjones' -- username ); select * from CustomerAccessList

Answer: The insert succeeds and 2 rows are returned from the SELECT

Explanation:

A FILTER predicate for Row Level Security does not block inserts, even if those inserts will be subsequently filtered by the security policy.

Ref: Row Level Security - https://msdn.microsoft.com/en-us/library/dn765131.aspx

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Two Things I Would Change in SSISDB Setup (SQLServerCentral 3/29/2016)

A community of more than 1,600,000 database professionals and growing

Featured Contents

Featured Script

The Voice of the DBA

Track Your Consultants

The Voice of the DBA Podcast

Featured Contents

Two Things I Would Change in SSISDB Setup

Webinar - Redgate DLM Demo (with TFS, TFS Build & Microsoft Release Management)

Introduction to Protecting SQL Server with Azure Site Recovery

From the SQLServerCentral Blogs - ETL Auditing

From the SQLServerCentral Blogs - SQLBits in Space

Question of the Day

Today's Question (by Peter McLean):

Think you know the answer? Click here, and find out if you are right.

SQL Server T-SQL Recipes

Yesterday's Question of the Day

Yesterday's Question (by Steve Jones):

Featured Script

Accurate Time between Two Dates in Year, Month,Day Format

Database Pros Who Need Your Help

SQL Server 2014 : Administration - SQL Server 2014

SQL Server 2014 : Development - SQL Server 2014

SQL Server 2012 : SQL 2012 - General

SQL Server 2012 : SQL Server 2012 - T-SQL

SQL Server 2008 : SQL Server 2008 - General

SQL Server 2008 : T-SQL (SS2K8)

SQL Server 2008 : SQL Server 2008 Administration

SQL Server 2005 : Administering

SQL Server 2005 : Development

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