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Sicherheit: Ausführen beliebiger Kommandos in RoundCube Webmail
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in RoundCube Webmail
ID: 201612-44
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Sa, 24. Dezember 2016, 09:56
Referenzen: http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9920

Originalnachricht

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From: Aaron Bauman <bman@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <bc5dfffb-d24e-5523-da1f-413c2a953f0b@gentoo.org>
Subject: [ GLSA 201612-44 ] Roundcube: Arbitrary code execution

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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 201612-44
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Roundcube: Arbitrary code execution
Date: December 24, 2016
Bugs: #601410
ID: 201612-44

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Synopsis
========

A vulnerability in Roundcube could potentially lead to arbitrary code
execution.

Background
==========

Free and open source webmail software for the masses, written in PHP.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 mail-client/roundcube < 1.2.3 >= 1.2.3

Description
===========

Roundcube, when no SMTP server is configured and the sendmail program
is enabled, does not properly restrict the use of custom envelope-from
addresses on the sendmail command line.

Impact
======

An authenticated remote attacker could possibly execute arbitrary code
with the privileges of the process, or cause a Denial of Service
condition.

Workaround
==========

Don't use a MTA (Mail Transfer Agent) in conjunction with Roundcube
which implements sendmail's "-O" or "-X" parameter, or
configure
Roundcube to use a SMTP server as recommended by upstream.

Resolution
==========

All Roundcube users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/roundcube-1.2.3"

References
==========

[ 1 ] CVE-2016-9920
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9920

Availability
============

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

https://security.gentoo.org/glsa/201612-44

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 2016 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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Gentoo Linux Security Advisory GLSA 201612-44
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
<a
class=3D"moz-txt-link-freet=
ext" href=3D"https://security.gentoo.org/">https://security.gentoo.org/</=
a>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Roundcube: Arbitrary code execution
Date: December 24, 2016
Bugs: #601410
ID: 201612-44

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D

A vulnerability in Roundcube could potentially lead to arbitrary code
execution.

Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Free and open source webmail software for the masses, written in PHP.

Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 mail-client/roundcube &lt; 1.2.3 &gt;=3D
1=
=2E2.3=20

Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Roundcube, when no SMTP server is configured and the sendmail program
is enabled, does not properly restrict the use of custom envelope-from
addresses on the sendmail command line.

Impact
=3D=3D=3D=3D=3D=3D

An authenticated remote attacker could possibly execute arbitrary code
with the privileges of the process, or cause a Denial of Service
condition.

Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Don't use a MTA (Mail Transfer Agent) in conjunction with Roundcube
which implements sendmail's "-O" or "-X" parameter, or
configure
Roundcube to use a SMTP server as recommended by upstream.

Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

All Roundcube users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
"&gt;=3Dmail-client/roundcube-1.2.3"=


References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

[ 1 ] CVE-2016-9920
<a class=3D"moz-txt-link-freetext" href=3D"http://nvd.nist.gov/nvd.=
cfm?cvename=3DCVE-2016-9920">http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-20=
16-9920</a>

Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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

<a class=3D"moz-txt-link-freetext" href=3D"https://security.gentoo.org/g=
lsa/201612-44">https://security.gentoo.org/glsa/201612-44</a>

Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D

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
<a class=3D"moz-txt-link-abbreviated"
href=3D"mailto:security@gentoo.org"=
>security@gentoo.org</a> or alternatively, you may file a bug at
<a class=3D"moz-txt-link-freetext" href=3D"https://bugs.gentoo.org">https=
://bugs.gentoo.org</a>.

License
=3D=3D=3D=3D=3D=3D=3D

Copyright 2016 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.

<a class=3D"moz-txt-link-freetext" href=3D"http://creativecommons.org/lic=
enses/by-sa/2.5">http://creativecommons.org/licenses/by-sa/2.5</a></pre>
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