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AUSCERT External Security Bulletin Redistribution
ESB-2016.2744.2
[Security-news] Drupal Core - Moderately Critical - Multiple
Vulnerabilities - SA-CORE-2016-005
28 November 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Drupal
Publisher: Drupal
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Denial of Service -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2016-9452 CVE-2016-9451 CVE-2016-9450
CVE-2016-9449
Original Bulletin:
https://www.drupal.org/SA-CORE-2016-005
Revision History: November 28 2016: CVEs assigned to vulnerabilities
November 17 2016: Initial Release
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Security advisories
Drupal coreContributed projectsPublic service announcements
Drupal Core - Moderately Critical - Multiple Vulnerabilities -
SA-CORE-2016-005
Posted by Drupal Security Team on November 16, 2016 at 5:37pm
Advisory ID: DRUPAL-SA-CORE-2016-005
Project: Drupal core
Version: 7.x, 8.x
Date: 2016-November-16
Security risk: 13/25 ( Moderately Critical)
AC:None/A:None/CI:Some/II:None/E:Theoretical/TD:Uncommon
Vulnerability: Multiple vulnerabilities
Description
Inconsistent name for term access query (Less critical - Drupal 7 and Drupal
8)
Drupal provides a mechanism to alter database SELECT queries before they are
executed. Contributed and custom modules may use this mechanism to restrict
access to certain entities by implementing hook_query_alter() or
hook_query_TAG_alter() in order to add additional conditions. Queries can be
distinguished by means of query tags. As the documentation on
EntityFieldQuery::addTag() suggests, access-tags on entity queries normally
follow the form ENTITY_TYPE_access (e.g. node_access). However, the taxonomy
module's access query tag predated this system and used term_access as the
query tag instead of taxonomy_term_access.
As a result, before this security release modules wishing to restrict access
to taxonomy terms may have implemented an unsupported tag, or needed to look
for both tags (term_access and taxonomy_term_access) in order to be compatible
with queries generated both by Drupal core as well as those generated by
contributed modules like Entity Reference. Otherwise information on taxonomy
terms might have been disclosed to unprivileged users.
Incorrect cache context on password reset page (Less critical - Drupal 8)
The user password reset form does not specify a proper cache context, which
can lead to cache poisoning and unwanted content on the page.
Confirmation forms allow external URLs to be injected (Moderately critical -
Drupal 7)
Under certain circumstances, malicious users could construct a URL to a
confirmation form that would trick users into being redirected to a 3rd party
website after interacting with the form, thereby exposing the users to
potential social engineering attacks.
Denial of service via transliterate mechanism (Moderately critical - Drupal 8)
A specially crafted URL can cause a denial of service via the transliterate
mechanism.
CVE identifier(s) issued
Inconsistent name for term access query: CVE-2016-9449
Incorrect cache context on password reset page: CVE-2016-9450
Confirmation forms allow external URLs to be injected: CVE-2016-9451
Denial of service via transliterate mechanism: CVE-2016-9452
Versions affected
Drupal core 7.x versions prior to 7.52
Drupal core 8.x versions prior to 8.2.3
Solution
Install the latest version:
If you use Drupal 7.x, upgrade to Drupal core 7.52
If you use Drupal 8.x, upgrade to Drupal core 8.2.3
Also see the Drupal core project page.
Reported by
Inconsistent name for term access query:
znerol
Incorrect cache context on password reset page:
Charlotte Bone
Confirmation forms allow external URLs to be injected:
jnicola
Ezra Wolfe
Denial of service via transliterate mechanism:
Lee Rowlands of the Drupal Security Team
Fixed by
Inconsistent name for term access query:
znerol
xjm of the Drupal Security Team
David Rothstein of the Drupal Security Team
Dave Reid of the Drupal Security Team
Larry Garfield
Incorrect cache context on password reset page:
Chris McCafferty, provisional Drupal Security Team member
xjm of the Drupal Security Team
Alex Pott of the Drupal Security Team
Michael Hess of the Drupal Security Team
Nathaniel Catchpole of the Drupal Security Team
Confirmation forms allow external URLs to be injected:
Peter Wolanin of the Drupal Security Team
Alex Pott of the Drupal Security Team
David Rothstein of the Drupal Security Team
Denial of service via transliterate mechanism:
Lee Rowlands of the Drupal Security Team
Cathy Theys of the Drupal Security Team
Alex Pott of the Drupal Security Team
Peter Wolanin of the Drupal Security Team
Daniel Wehner
Nate Haug
Heine Deelstra 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
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