Severity: Medium

Vendor: The Apache Software Foundation

Versions Affected:
Spark versions through 2.1.2
Spark 2.2.0 through 2.2.1
Spark 2.3.0

In Apache Spark up to and including 2.1.2, 2.2.0 to 2.2.1, and 2.3.0, it's
possible for a malicious user to construct a URL pointing to a Spark
cluster's UI's job and stage info pages, and if a user can be tricked into
accessing the URL, can be used to cause script to execute and expose
information from the user's view of the Spark UI. While some browsers like
recent versions of Chrome and Safari are able to block this type of attack,
current versions of Firefox (and possibly others) do not.

1.x, 2.0.x, and 2.1.x users should upgrade to 2.1.3 or newer
2.2.x users should upgrade to 2.2.2 or newer
2.3.x users should upgrade to 2.3.1 or newer

Spencer Gietzen, Rhino Security Labs


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