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Date: Thu, 12 Sep 2019 15:50:36 +0200
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:
* Aqua Security Serverless Scanner Plugin 1.0.5
* Beaker builder Plugin 1.10
* Build Environment Plugin 1.7
* Dashboard View Plugin 2.12
* Git client Plugin 2.8.5
* Script Security Plugin 1.63
Summaries of the vulnerabilities are below. More details, severity, and
attribution can be found here:
https://jenkins.io/security/advisory/2019-09-12/
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-1534 / CVE-2019-10392
Git client Plugin accepts user-specified values as argument to an invocation
of `git ls-remote` to validate the existence of a Git repository at the
specified URL. This was implemented in a way that allowed attackers with
Job/Configure permission to execute an arbitrary system command on the
Jenkins master as the OS user that the Jenkins process is running as.
SECURITY-1538 / CVE-2019-10393, CVE-2019-10394, CVE-2019-10399, CVE-2019-10400
Sandbox protection in Script Security Plugin could be circumvented through
any of the following:
- Crafted method names in method call expressions (CVE-2019-10393)
- Crafted property names in property expressions on the left-hand side of
assignment expressions (CVE-2019-10394)
- Crafted property names in property expressions in increment and decrement
expressions (CVE-2019-10399)
- Crafted subexpressions in increment and decrement expressions not
involving actual assignment (CVE-2019-10400)
This allowed attackers able to specify and run sandboxed scripts to execute
arbitrary code in the context of the Jenkins master JVM.
SECURITY-1476 / CVE-2019-10395
Build Environment Plugin did not escape values of environment variables
shown on its views. This resulted in a cross-site scripting vulnerability
exploitable by attackers able to control the values of build environment
variables, typically users with Job/Configure or Job/Build permission.
SECURITY-1489 / CVE-2019-10396
Dashboard View Plugin did not escape the build description on the Latest
Builds View. This resulted in a cross-site scripting vulnerability
exploitable by attackers able to control the description of builds shown on
that view.
SECURITY-1509 / CVE-2019-10397
Aqua Security Serverless Scanner Plugin stores service passwords in job
configurations.
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.
SECURITY-1545 / CVE-2019-10398
Beaker builder Plugin stored the Beaker password unencrypted on the Jenkins
master. This password could be viewed by users with access to the master
file system.
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