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             AUSCERT External Security Bulletin Redistribution

 Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-002
                               29 March 2018


        AusCERT Security Bulletin Summary

Product:           Drupal
Publisher:         Drupal
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   BSD variants
Impact/Access:     Administrator Compromise        -- Remote/Unauthenticated
                   Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-7600  

Original Bulletin: 

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Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-002

Project:       Drupal core
Date:          2018-March-28
Security risk: Highly critical 
               21/25 AC:None/A:None/CI:All/II:All/E:Theoretical/TD:Default
Vulnerability: Remote Code Execution
Description:   CVE: CVE-2018-7600

A remote code execution vulnerability exists within multiple subsystems of
Drupal 7.x and 8.x. This potentially allows attackers to exploit multiple
attack vectors on a Drupal site, which could result in the site being
completely compromised.

The security team has written an FAQ about this issue.


Upgrade to the most recent version of Drupal 7 or 8 core.

  * If you are running 7.x, upgrade to Drupal 7.58. (If you are unable to
    update immediately, you can attempt to apply this patch to fix the
    vulnerability until such time as you are able to completely update.)
  * If you are running 8.5.x, upgrade to Drupal 8.5.1. (If you are unable to
    update immediately, you can attempt to apply this patch to fix the
    vulnerability until such time as you are able to completely update.)

Drupal 8.3.x and 8.4.x are no longer supported and we don't normally provide
security releases for unsupported minor releases. However, given the potential
severity of this issue, we are providing 8.3.x and 8.4.x releases that includes
the fix for sites which have not yet had a chance to update to 8.5.0.

Your site's update report page will recommend the 8.5.x release even if you are
on 8.3.x or 8.4.x. Please take the time to update to a supported version after
installing this security update.

  * If you are running 8.3.x, upgrade to Drupal 8.3.9 or apply this patch.
  * If you are running 8.4.x, upgrade to Drupal 8.4.6 or apply this patch.

This issue also affects Drupal 8.2.x and earlier, which are no longer
supported. If you are running any of these versions of Drupal 8, update to a
more recent release and then follow the instructions above.

This issue also affects Drupal 6. Drupal 6 is End of Life. For more information
on Drupal 6 support please contact a D6LTS vendor.

Reported By: 

  * Jasper Mattsson

Fixed By: 

  * Jasper Mattsson
  * Samuel Mortenson Provisional Drupal Security Team member
  * David Rothstein of the Drupal Security Team
  * Jess (xjm) of the Drupal Security Team
  * Michael Hess of the Drupal Security Team
  * Lee Rowlands of the Drupal Security Team
  * Peter Wolanin of the Drupal Security Team
  * Alex Pott of the Drupal Security Team
  * David Snopek of the Drupal Security Team
  * Pere Orga of the Drupal Security Team
  * Neil Drumm of the Drupal Security Team
  * Cash Williams of the Drupal Security Team
  * Daniel Wehner
  * Tim Plunkett

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