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[gentoo-announce] [ GLSA 201711-15 ] PHPUnit: Remote code execution

Posted on 19 November 2017
Gentoo-announce

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Gentoo Linux Security Advisory=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2==A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0==C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0GLSA 201711-15
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=C2=A0Severity: Normal
=C2=A0=C2=A0=C2=A0=C2=A0Title: PHPUnit: Remote code execution
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Date: November 19, 2017
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Bugs: #635356
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0ID: 201711-15

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Synopsis
========
A vulnerability was discovered in PHPUnit which may allow an
unauthenticated remote attacker to execute arbitrary PHP code.

Background
==========
PHPUnit is a programmer-oriented testing framework for PHP. It is an
instance of the xUnit architecture for unit testing frameworks.

Affected packages
=================
=C2=A0=C2=A0=C2=A0=C2=A0---------------------------------------------------=----------------
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Package=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0==C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/=C2=A0=C2=A0=C2=A0=C2=A0==C2=A0Vulnerable=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/=C2=A0=C2=A0=C2=A0=C2=A0=C2==A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Unaffected
=C2=A0=C2=A0=C2=A0=C2=A0---------------------------------------------------=----------------
=C2=A0 1=C2=A0=C2=A0dev-php/phpunit=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2==A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0< 5.7.15-r1=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0==C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0>= 5.7.15-r1=C2=A0

Description
===========
When PHPUnit is installed in a production environment via composer and
these modules are in a web accessible directory, the eval-stdin.php
file in PHPUnit contains vulnerable statements that trigger the
vulnerability.

Impact
======
A remote attacker could possibly execute arbitrary PHP code or cause a
Denial of Service condition.

Workaround
==========
There are several ways to fix or mitigate this vulnerability:

Remove PHPUnit from the production environment.

Update PHPUnit.

Manually apply the patch.

Disable direct access to the composer packages by placing .htaccess
file to /vendor folder.

Resolution
==========
All PHPUnit users should upgrade to the latest version:

=C2=A0 # emerge --sync
=C2=A0 # emerge --ask --oneshot --verbose ">=dev-php/phpunit-5.7.15-r1"

References
==========
[ 1 ] CVE-2017-9841
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2017-9841

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

=C2=A0https://security.gentoo.org/glsa/201711-15

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2017 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5
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