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A new vulnerability in Sparkle has put a 'huge' number of Mac applications at risk for hijacking. For those unfamiliar, Sparkle is a tool used often by third-party apps that are not in the App Store to allow updates to be pushed to users. Apps susceptible to this hijacking hack include Camtasia, uTorrent, DuetDisplay, and Sketch. The attack applies to both OS X Yosemite and El Capitan (via Ars Technica).
The Sparkle vulnerability could allow for an attacker to take control of another computer on the network via a Man In The Middle attack, security researcher Radek points out on his blog. A Man In The Middle attack works when a third party intercepts traffic between a user and another server and then captures and modifies that traffic from the user.
Lately, I was doing research connected with different updating strategies, and I tested a few applications working under Mac OS X. This short weekend research revealed that we have many insecure applications in the wild. As a result, I have found a vulnerability which allows an attacker take control of another computer on the same network (via MITM).
The vulnerability is not in code signing itself. It exists due to the functionality provided by the WebKit view that allows JavaScript execution and the ability to modify unencrypted HTTP traffic (XML response).
Essentially, the vulnerability exists because the Sparkle Updater framework connects over HTTP versus HTTPS. It's important to note, however, that Sparkle has already updated its framework to close the vulnerability, but it is up to the apps that implement the Sparkle Updater framework to update their apps with the newest version of the framework. Many app developers are doing this as we speak, including popular media playback software VLC, which was updated earlier this week to implement the newest Sparkle Updater framework.
It's important to note that the updater mechanism used within OS X does not use the Sparkle Updater, making it unsusceptible to this Man In The Middle attack. Issues like this vulnerability certainly make a compelling argument for developers to move more towards the Mac App Store, but both growth and use of it has been relatively stagnant.
There's much more in Raedek's full breakdown of the Sparkle Updater vulnerability on his blog.
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by Jose Marcial Portilla
Here is a Step by Step guide to installing Scala and Apache Spark on MacOS.
Step 1: Get Homebrew
Sparkle (itch) (creat-if) Mac Os Download
Homebrew makes your life a lot easier when it comes to installing applications and languages on a Mac OS. You can get Homebrew by following the instructions on it's website.
Which basically just tells you to open your terminal and type:
There are more detailed instructions on installing on the project's GitHub page. Installing everything through Homebrew should automatically add all the appropriate PATH settings to your profile.
Step 2: Installing xcode-select
In order to install Java, Scala, and Spark through the command line we will probably need to install xcode-select and command line developer tools. Go to you terminal and type:
You will get a prompt that looks something like this:
Go ahead and select install.
Step 3: Use Homebrew to install Java
Scala is dependent on Java, you may or may not need to install it. The easiest way to install it is to just use HomeBrew:
In your terminal type:
You may need to enter your password at some point to complete the java installation. After running this Homebrew should have taken care of the Java install. Now we can move on to Scala.
Step 4: Use Homebrew to install Scala
Sparkle (itch) (creat-if) Mac Os Free
Now with Homebrew installed go to your terminal and type:
Step 5: Use Homebrew to install Apache Spark
Now with Scala installed go to your terminal and type:
Homebrew will now download and install Apache Spark, it may take some time depending on your internet connection.
Step 5: Start the Spark Shell
Now try this command:
You should see a flood of text and warnings but eventually see something like this:
You can confirm that it is working by typing the scala code:
Congratulations! You're all set up!
Common Issue: Setting PATH in bash.
Homebrew should have taken care of all of this, but in case you need to add spark to your PATH, you'll want to use:
Just type that straight into your terminal.
I'm Jose Portilla, and I teach over 200,000 students about programming, data science, and machine learning on Udemy. You can check out all my courses here.
If you're interested in learning Python for Data Science and Machine learning, check out my course here. (I also teach Full Stack Web Development with Django!)
