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Date: Mon, 16 Apr 2018 13:25:08 +0200
From: Daniel Beck <>
Subject: Multiple vulnerabilities in Jenkins plugins

Jenkins is an open source automation server which enables developers around
the world to reliably build, test, and deploy their software. The following
releases contain fixes for security vulnerabilities:

* Email Extension 2.62
* Google Login 1.3.1
* HTML Publisher 1.16
* S3 Publisher 0.11.0

Summaries of the vulnerabilities are below. More details, severity, and
attribution can be found here:

We provide advance notification for security updates on this mailing list:

If you find security vulnerabilities in Jenkins, please report them as
described here:


Google Login Plugin did not invalidate the previous session and create a 
new one upon successful login, allowing attackers able to control or 
obtain another user’s pre-login session ID to impersonate them.

Google Login Plugin redirected users to an arbitrary URL specified as a 
query parameter after successful login, enabling phishing attacks.

Email Extension Plugin stores an SMTP password in the global Jenkins 

While the password is stored encrypted on disk, it was transmitted in 
plain text as part of the configuration form. This could result in 
exposure of the password through browser extensions, cross-site scripting 
vulnerabilities, and similar situations.

S3 Publisher Plugin did not properly escape file names shown on the
Jenkins UI. This resulted in a cross-site scripting vulnerability
exploitable by users able to control the names of uploaded files.

HTML Publisher Plugin allows specifying a name for the HTML reports it 
publishes. This report name was used in the URL of the report and as a 
directory name on the Jenkins master without further processing, resulting 
in a path traversal vulnerability that allowed overriding files outside 
the intended directory.

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