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Date: Wed, 12 Feb 2020 15:30:36 +0100
From: Daniel Beck <ml@...kweb.net>
To: oss-security@...ts.openwall.com
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:

* Azure AD Plugin 1.2.0
* Brakeman Plugin 0.13
* FitNesse Plugin 1.31
* Git Parameter Plugin 0.9.12
* Google Kubernetes Engine Plugin 0.8.1
* NUnit Plugin 0.26
* Pipeline GitHub Notify Step Plugin 1.0.5
* Pipeline: Groovy Plugin 2.79
* RadarGun Plugin 1.8
* S3 publisher Plugin 0.11.5
* Script Security Plugin 1.70
* Subversion Plugin 2.13.1

Additionally, we announce unresolved security issues in the following
plugins:

* Applatix Plugin
* BMC Release Package and Deployment Plugin
* Debian Package Builder Plugin
* DigitalOcean Plugin
* Dynamic Extended Choice Parameter Plugin
* Eagle Tester Plugin
* ECX Copy Data Management Plugin
* Harvest SCM Plugin
* Parasoft Environment Manager Plugin

Summaries of the vulnerabilities are below. More details, severity, and
attribution can be found here:
https://jenkins.io/security/advisory/2020-02-12/

We provide advance notification for security updates on this mailing list:
https://groups.google.com/d/forum/jenkinsci-advisories

If you discover security vulnerabilities in Jenkins, please report them as
described here:
https://jenkins.io/security/#reporting-vulnerabilities

---

SECURITY-1710 / CVE-2020-2109
Sandbox protection in Pipeline: Groovy Plugin 2.78 and earlier can be
circumvented through default parameter expressions in CPS-transformed
methods.

This allows attackers able to specify and run sandboxed Pipelines to
execute arbitrary code in the context of the Jenkins master JVM.


SECURITY-1713 / CVE-2020-2110
Sandbox protection in Script Security Plugin 1.69 and earlier can be
circumvented during the script compilation phase by applying AST
transforming annotations such as `@...b` to imports or by using them inside
of other annotations. This affects both script execution (typically invoked
from other plugins like Pipeline) as well as HTTP endpoints providing
sandboxed script validation.

Users with Overall/Read permission can exploit this to bypass sandbox
protection and execute arbitrary code on the Jenkins master.

This issue is due to an incomplete fix of SECURITY-1266.


SECURITY-1725 / CVE-2020-2111
Subversion Plugin 2.13.0 and earlier does not escape the error message for
the Project Repository Base URL field form validation. This results in a
stored cross-site scripting vulnerability exploitable by users able to
specify such base URLs, for example users able to configure Multibranch
Pipelines.


SECURITY-1709 / CVE-2020-2112 (parameter name) & CVE-2020-2113 (default value)
Git Parameter Plugin 0.9.11 and earlier does not correctly escape the
parameter name or default value. This results in a stored cross-site
scripting vulnerability exploitable by users with Job/Configure permission.


SECURITY-1684 / CVE-2020-2114
S3 publisher Plugin stores a secret key in its global configuration.

While the credential is stored encrypted on disk, it is transmitted in
plain text as part of the configuration form by S3 publisher Plugin 0.11.4
and earlier. This can result in exposure of the credential through browser
extensions, cross-site scripting vulnerabilities, and similar situations.


SECURITY-1752 / CVE-2020-2115
NUnit Plugin 0.25 and earlier does not configure the XML parser to prevent
XML external entity (XXE) attacks.

This allows a user able to control the input files for its post-build step
to have Jenkins parse a crafted file that uses external entities for
extraction of secrets from the Jenkins master, server-side request forgery,
or denial-of-service attacks.


SECURITY-812 (1) / CVE-2020-2116 (CSRF) & CVE-2020-2117 (missing permission check)
Pipeline GitHub Notify Step Plugin 1.0.4 and earlier does not perform
permission checks on a method implementing form validation. This allows
users with Overall/Read access to Jenkins to connect to an
attacker-specified URL using attacker-specified credentials IDs obtained
through another method, capturing credentials stored in Jenkins.

Additionally, the form validation method does not require POST requests,
resulting in a CSRF vulnerability.


SECURITY-812 (2) / CVE-2020-2118
Pipeline GitHub Notify Step Plugin 1.0.4 and earlier provides a list of
applicable credential IDs to allow users configuring the plugin to select
the one to use.

This functionality does not correctly check permissions, allowing any user
with Overall/Read permission to get a list of valid credentials IDs. Those
can be used as part of an attack to capture the credentials using another
vulnerability.


SECURITY-1717 / CVE-2020-2119
Azure AD Plugin stores a client secret in its global configuration.

While the credential is stored encrypted on disk, it is transmitted in
plain text as part of the configuration form by Azure AD Plugin 1.1.2 and
earlier. This can result in exposure of the credential through browser
extensions, cross-site scripting vulnerabilities, and similar situations.


SECURITY-1751 / CVE-2020-2120
FitNesse Plugin 1.30 and earlier does not configure the XML parser to
prevent XML external entity (XXE) attacks.

This allows a user able to control the input files for its post-build step
to have Jenkins parse a crafted file that uses external entities for
extraction of secrets from the Jenkins master, server-side request forgery,
or denial-of-service attacks.


SECURITY-1731 / CVE-2020-2121
Google Kubernetes Engine Plugin 0.8.0 and earlier does not configure its
YAML parser to prevent the instantiation of arbitrary types. This results
in a remote code execution vulnerability exploitable by users able to
provide YAML input files to Google Kubernetes Engine Plugin's build step.


SECURITY-1644 / CVE-2020-2122
Brakeman Plugin 0.12 and earlier did not escape values received from parsed
JSON files when rendering them, resulting in a stored cross-site scripting
vulnerability.

This vulnerability can be exploited by users able to control the Brakeman
post-build step input data.


SECURITY-1733 / CVE-2020-2123
RadarGun Plugin 1.7 and earlier does not configure its YAML parser to
prevent the instantiation of arbitrary types. This results in a remote code
execution vulnerability exploitable by users able to configure RadarGun
Plugin's build step.


SECURITY-1560 / CVE-2020-2124
Dynamic Extended Choice Parameter Plugin 1.0.1 and earlier stores a
Subversion password unencrypted in job `config.xml` files as part of its
configuration. This credential can be viewed by users with Extended Read
permission or access to the master file system.

As of publication of this advisory, there is no fix.


SECURITY-1558 / CVE-2020-2125
Debian Package Builder Plugin 1.6.11 and earlier stores a GPG passphrase
unencrypted in its global configuration file
`ru.yandex.jenkins.plugins.debuilder.DebianPackageBuilder.xml` on the
Jenkins master. This credential can be viewed by users with access to the
master file system.

As of publication of this advisory, there is no fix.


SECURITY-1559 / CVE-2020-2126
DigitalOcean Plugin 1.1 and earlier stores a token unencrypted in the
global `config.xml` files as part of its configuration. This credential can
be viewed by users with access to the master file system.

As of publication of this advisory, there is no fix.


SECURITY-1547 / CVE-2020-2127
BMC Release Package and Deployment Plugin 1.1 and earlier stores the RPD
user token unencrypted in its global configuration file
`com.bmc.rpd.jenkins.plugin.bmcrpd.configuration.RPDPluginConfiguration.xml`
on the Jenkins master. This credential can be viewed by users with access
to the master file system.

As of publication of this advisory, there is no fix.


SECURITY-1549 / CVE-2020-2128
ECX Copy Data Management Plugin 1.9 and earlier stores a service password
unencrypted in job `config.xml` files as part of its configuration. This
credential can be viewed by users with Extended Read permission or access
to the master file system.

As of publication of this advisory, there is no fix.


SECURITY-1552 / CVE-2020-2129
Eagle Tester Plugin 1.0.9 and earlier stores a password unencrypted in its
global configuration file
`com.bmc.rpd.jenkins.plugin.bmcrpd.configuration.RPDPluginConfiguration.xml`
on the Jenkins master. This credential can be viewed by users with access
to the master file system.

As of publication of this advisory, there is no fix.


SECURITY-1553 / CVE-2020-2130 (global configuration) & CVE-2020-2131 (job configuration)
Harvest SCM Plugin 0.5.1 and earlier stores SCM passwords unencrypted in
its global configuration file `hudson.plugins.harvest.HarvestSCM.xml` and
in job `config.xml` files on the Jenkins master. These credentials can be
viewed by users with Extended Read permission (job `config.xml` only) or
access to the master file system (both).

As of publication of this advisory, there is no fix.


SECURITY-1562 / CVE-2020-2132
Parasoft Environment Manager Plugin 2.14 and earlier stores a repository
password unencrypted in job `config.xml` files as part of its
configuration. This credential can be viewed by users with Extended Read
permission or access to the master file system.

As of publication of this advisory, there is no fix.


SECURITY-1540 / CVE-2020-2133
Applatix Plugin 1.1 and earlier stores the Applatix password unencrypted in
job `config.xml` files as part of its configuration. This credential can be
viewed by users with Extended Read permission or access to the master file
system.

As of publication of this advisory, there is no fix.

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