[Security-news] Aegir - Moderately Critical - Code Execution Prevention - SA-CONTRIB-2015-113

[security-news at drupal.org]

View online: https://www.drupal.org/node/2492317

   * Advisory ID: DRUPAL-SA-CONTRIB-2014-113
   * Project: Hostmaster (Aegir) [1]     (third-party module)
   * Version: 6.x, 7.x
   * Date: 2015-May-20
   * Security risk: 13/25 ( Moderately Critical)
     AC:Complex/A:Admin/CI:All/II:Some/E:Theoretical/TD:Default [2]
   * Vulnerability: Arbitrary PHP code execution

-------- DESCRIPTION
---------------------------------------------------------

The Aegir Hosting System enables you to deploy and manage Drupal sites.

When writing Apache vhost files for hosted sites on a common platform
(multi-site), Aegir doesn't block execution of code uploaded to another site
on the same platform.

This vulnerability is mitigated by the fact that an attacker must already
have compromised another site, on the same multi-site install, sufficiently
to upload executable code to its files directory.


-------- CVE IDENTIFIER(S) ISSUED
--------------------------------------------

   * /A CVE identifier [3] will be requested, and added upon issuance, in
     accordance
            with Drupal Security Team processes./

-------- VERSIONS AFFECTED
---------------------------------------------------

   * Aegir Hosting System 6.x-2.x versions prior to 6.x-2.4.
   * Aegir Hosting System 7.x-3.x versions prior to 7.x-3.0-beta2.

Drupal core is not affected. If you do not use the contributed Hostmaster
(Aegir) [4] distribution,
       there is nothing you need to do.

-------- SOLUTION
------------------------------------------------------------

Install the latest version:

   * If you use the Aegir Hosting System for Drupal 6.x, upgrade to Aegir
     6.x-2.4 [5]
   * If you use the Aegir Hosting System for Drupal 7.x, upgrade to Aegir
     7.x-3.0-beta2 [6]

After installation you need to run a verify task on all hosted sites. The
easiest method is to use the Views Bulk Operations on the hosting/sites page.

Also see the Hostmaster (Aegir) [7] project page.

-------- REPORTED BY
---------------------------------------------------------

   * Gaël Gosset [8]

-------- FIXED BY
------------------------------------------------------------

   * Herman van Rink [9], a maintainer of the Aegir Hosting System.

-------- COORDINATED BY
------------------------------------------------------

   * Michael Hess [10] 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 [11].

Learn more about the Drupal Security team and their policies [12], writing
secure code for Drupal [13], and  securing your site [14].

Follow the Drupal Security Team on Twitter at
https://twitter.com/drupalsecurity [15]


[1] https://www.drupal.org/project/hostmaster
[2] https://www.drupal.org/security-team/risk-levels
[3] http://cve.mitre.org/
[4] https://www.drupal.org/project/hostmaster
[5] https://www.drupal.org/node/2492313
[6] https://www.drupal.org/node/2492215
[7] https://www.drupal.org/project/hostmaster
[8] https://www.drupal.org/u/ga%C3%ABlg
[9] https://www.drupal.org/u/helmo
[10] https://www.drupal.org/user/102818
[11] https://www.drupal.org/contact
[12] https://www.drupal.org/security-team
[13] https://www.drupal.org/writing-secure-code
[14] https://www.drupal.org/security/secure-configuration
[15] https://twitter.com/drupalsecurity