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Date: Wed, 1 Feb 2017 22:35:13 +0100
From: Daniel Beck <>
Subject: Multiple vulnerabilities in Jenkins

The Jenkins project published updates today with fixes for multiple 
vulnerabilities. Users should upgrade to the versions below:

* Jenkins (weekly) 2.44
* Jenkins (LTS) 2.32.2

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:


SECURITY-304 / CVE-2017-2598
Jenkins stored encrypted secrets on disk using AES ECB block cipher mode 
without IV.

SECURITY-321 / CVE-2017-2599
An insufficient permission check allowed users with the permission to create 
new items (e.g. jobs) to overwrite existing items they don't have access to,
and access some of their data

SECURITY-343 / CVE-2017-2600
Overall/Read permission was sufficient to access node monitor data via the
remote API. These included system configuration and runtime information of
these nodes.

SECURITY-349 / CVE-2011-4969
Possible cross-site scripting vulnerability in jQuery bundled with timeline

SECURITY-353 / CVE-2017-2601
Users with the permission to configure jobs were able to inject JavaScript
into parameter names and descriptions.

SECURITY-354 / CVE-2015-0886
Jenkins bundled an outdated version of jbcrypt that was affected by

SECURITY-358 / CVE-2017-2602
Pipeline metadata files not blacklisted in agent-to-master security subsystem

SECURITY-362 / CVE-2017-2603
Agents that were disconnected by users contained the disconnecting user's 
User object in serialized form in the config.xml remote API output.

SECURITY-371 / CVE-2017-2604
Low privilege users were able to act on some administrative monitors due to
insufficient permission checks.

SECURITY-376 / CVE-2017-2605
The re-key admin monitor was introduced in Jenkins 1.498 and re-encrypted all
secrets in JENKINS_HOME with a new key. It also created a backup directory
with all old secrets, and the key used to encrypt them. These backups were
world-readable and not removed afterwards.

SECURITY-380 / CVE-2017-2606
The method Jenkins#getItems() included a performance optimization that wrongly
returned inaccessible items when the 'Logged in users can do anything'
authorization strategy was used, even when no access was granted to anonymous

SECURITY-382 / CVE-2017-2607
Jenkins users, or users with SCM access, could configure jobs or modify build
scripts such that they print serialized console notes that perform cross-site
scripting attacks on Jenkins users viewing the build logs.

SECURITY-383 / CVE-2017-2608
XStream-based APIs in Jenkins (e.g. /createItem URLs, or POST config.xml
remote API) were vulnerable to a remote code execution vulnerability involving
the deserialization of various types in the javax.imageio package.

SECURITY-385 / CVE-2017-2609
The autocompletion for the search box provided the names of views the current
user does not have access to in its suggestions.

SECURITY-388 / CVE-2017-2610
User display names with less-than and greater-than were not escaped when
displaying search suggestions, resulting in a cross-site scripting

SECURITY-389 / CVE-2017-2611
The URLs /workspaceCleanup and /fingerprintCleanup did not perform permission
checks, allowing users with read access to Jenkins to trigger these background
processes (that are otherwise performed daily).

SECURITY-392 / CVE-2017-2612
Users with read access to Jenkins were able to override Oracle JDK download
credentials, resulting in future builds possibly failing to download a JDK.

SECURITY-406 / CVE-2017-2613
When administrators accessed a URL like /user/example via HTTP GET, a user
with the ID 'example' was created if it did not exist. While this user record
was only retained until restart in most cases, administrators' web browsers
could be manipulated to create a large number of user records.

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