ESB-2017.2257 - [Win][UNIX] Drupal: Execute arbitrary code/commands - Remote/unauthenticated 2017-09-07

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2257
        Clientside Validation - Critical - Arbitary PHP Execution -
                        DRUPAL-SA-CONTRIB-2017-072
                             7 September 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Drupal
Publisher:         Drupal Security Team
Operating System:  Windows
                   UNIX specific
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade

Original Bulletin: 
   https://www.drupal.org/node/2907118
   https://www.drupal.org/node/2907137

Comment: This bulletin contains two (2) Drupal Security Team security 
         advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

Clientside Validation - Critical - Arbitary PHP Execution - 
DRUPAL-SA-CONTRIB-2017-072

Posted by Drupal Security Team on 6 Sep 2017 at 17:20 UTC

Advisory ID: DRUPAL-SA-CONTRIB-2017-072

Project: Clientside Validation (third-party module)

Version: 7.x

Date: 2017-September-06

Security risk: 16/25 ( Critical) 
AC:Basic/A:None/CI:Some/II:Some/E:Theoretical/TD:All

Vulnerability: Arbitrary PHP code execution

Description

The Clientside Validation module enables you to have clientside (Javascript) 
validation on your forms.

The module does not sufficiently validate parameters of a POST request made 
when validating a CAPTCHA.

For the 1.x version of this module, this vulnerability is mitigated by the 
fact that the CAPTCHA module must be enabled and the 'validate captcha' option
of the Clientside Validation module must be enabled (this option is enabled by
default).

For the 2.x version of this module, this vulnerability is mitigated by the 
fact that the CAPTCHA module must be enabled and the Clientside Validation 
captcha submodule must be enabled.

CVE identifier(s) issued

A CVE identifier will be requested, and added upon issuance, in accordance 
with Drupal Security Team processes.

Versions affected

Clientside Validation 7.x-1.x versions prior to 7.x-1.44.

Clientside Validation 7.x-2.x versions prior to 7.x-2.0-beta1.

Drupal core is not affected. If you do not use the contributed Clientside 
Validation module, there is nothing you need to do.

Solution

Install the latest version:

If you use the 1.x version of Clientside Validation module for Drupal 7.x, 
upgrade to Clientside Validation 7.x-1.45

If you use the 2.x version of Clientside Validation module for Drupal 7.x, 
upgrade to Clientside Validation 7.x-2.0-beta2

Also see the Clientside Validation project page.

Reported by

Daniel-SCRT

Fixed by

Jelle Sebreghts the module maintainer

Coordinated by

Greg Knaddison of the Drupal Security Team

Contact and More Information

The Drupal security team can be reached at security at drupal.org or via the 
contact form at https://www.drupal.org/contact.

Learn more about the Drupal Security team and their policies, writing secure 
code for Drupal, and securing your site.

Follow the Drupal Security Team on Twitter at 
https://twitter.com/drupalsecurity

 Categories: Drupal 7.x

==================================================================

CAPTCHA - Moderately Critical - Denial of Service - SA-CONTRIB-2017-073

Posted by Drupal Security Team on 6 Sep 2017 at 19:21 UTC

Advisory ID: DRUPAL-SA-CONTRIB-2017-073

Project: CAPTCHA (third-party module)

Version: 7.x

Date: 2017-September-06

Security risk: 10/25 ( Moderately Critical) 
AC:Basic/A:None/CI:None/II:None/E:Proof/TD:Default

Vulnerability: Denial of Service

Description

This module enables you to use various techniques to block automated scripts /
robots from submitting content to a site, e.g. to block spam comments.

The module doesn't properly store the session ID of visitors who are given a 
session which could lead to a Denial of Service attack.

This vulnerability is mitigated by the fact that Drupal does not give a 
session to all visitors, especially when used with advanced caching systems 
like Varnish.

CVE identifier(s) issued

A CVE identifier will be requested, and added upon issuance, in accordance 
with Drupal Security Team processes.

Versions affected

CAPTCHA 7.x-1.x versions prior to 7.x-1.5.

Drupal core is not affected. If you do not use the contributed CAPTCHA module,
there is nothing you need to do.

Solution

Install the latest version:

If you use the CATPCHA module for Drupal 7.x, upgrade to CAPTCHA 7.x-1.5.

Also see the CAPTCHA project page.

Reported by

Nightwalker3000

Fixed by

Fabiano Sant'Ana, the module's maintainer.

Coordinated by

Lee Rowlands of the Drupal Security Team.

Damien McKenna of the Drupal Security Team.

Contact and More Information

The Drupal security team can be reached at security at drupal.org or via the 
contact form at https://www.drupal.org/contact.

Learn more about the Drupal Security team and their policies, writing secure 
code for Drupal, and securing your site.

Follow the Drupal Security Team on Twitter at 
https://twitter.com/drupalsecurity

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=N0B5
-----END PGP SIGNATURE-----

« Back to bulletins