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             AUSCERT External Security Bulletin Redistribution

 Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004
                               26 April 2018


        AusCERT Security Bulletin Summary

Product:           Drupal core
Publisher:         Drupal security team
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-7602  

Reference:         ASB-2018.0098

Original Bulletin: 

Comment: Exploit code is available and is being used in cryptojacking campaigns.

Revision History:  April 26 2018: This vulnerability is being actively exploited
                                  in the wild.
                   April 26 2018: Initial Release

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Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004

Project: Drupal core
Date: 2018-April-25
Security risk: Highly critical 20/25 AC:Basic/A:User/CI:All/II:All/E:Exploit/TD:Default
Vulnerability: Remote Code Execution
CVE: CVE-2018-7602

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
compromised. This vulnerability is related to Drupal core - Highly critical -
Remote Code Execution - SA-CORE-2018-002. Both SA-CORE-2018-002 and this
vulnerability are being exploited in the wild.

Updated -- this vulnerability is being exploited in the wild.

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

  o If you are running 7.x, upgrade to Drupal 7.59.
  o If you are running 8.5.x, upgrade to Drupal 8.5.3.
  o If you are running 8.4.x, upgrade to Drupal 8.4.8. (Drupal 8.4.x is no
    longer supported and we don't normally provide security releases for
    unsupported minor releases. However, we are providing this 8.4.x release so
    that sites can update as quickly as possible. You should update to 8.4.8
    immediately, then update to 8.5.3 or the latest secure release as soon as

If you are unable to update immediately, or if you are running a Drupal
distribution that does not yet include this security release, you can attempt
to apply the patch below to fix the vulnerability until you are able to update

  o Patch for Drupal 8.x (8.5.x and below)
  o Patch for Drupal 7.x

These patches will only work if your site already has the fix from
SA-CORE-2018-002 applied. (If your site does not have that fix, it may already
be compromised.)

Reported By: 

  o David Rothstein of the Drupal Security Team
  o Alex Pott of the Drupal Security Team
  o Heine Deelstra of the Drupal Security Team
  o Jasper Mattsson

Fixed By: 

  o David Rothstein of the Drupal Security Team
  o xjm of the Drupal Security Team
  o Samuel Mortenson of the Drupal Security Team
  o Alex Pott of the Drupal Security Team
  o Lee Rowlands of the Drupal Security Team
  o Heine Deelstra of the Drupal Security Team
  o Pere Orga of the Drupal Security Team
  o Peter Wolanin of the Drupal Security Team
  o Tim Plunkett
  o Michael Hess of the Drupal Security Team
  o Nate Lampton
  o Jasper Mattsson
  o Neil Drumm of the Drupal Security Team
  o Cash Williams of the Drupal Security Team
  o Daniel Wehner

Contact and more information

The Drupal security team can be reached by email at security at drupal.org or
via the contact form.

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 @drupalsecurity

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