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Category:   Application (Forum/Board/Portal)  >   Drupal Vendors:   drupal.org
(Drupal Issues Advisory) PHPMailer Input Validation Flaw Lets Remote Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1037536
SecurityTracker URL:  http://securitytracker.com/id/1037536
CVE Reference:   CVE-2016-10033, CVE-2016-10045   (Links to External Site)
Updated:  Dec 26 2016
Original Entry Date:  Dec 26 2016
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.x, 8.2.4 and prior 8.x versions
Description:   A vulnerability was reported in PHPMailer. A remote user can execute arbitrary code on the target system. Drupal Core is not affected. Drupal systems using the 3rd party PHPMailer library may be affected.

A remote user can supply specially crafted data that, when processed by the target PHPMailer class to send email, will write data containing arbitrary code to a file on the target system that can later be executed. The code will run with the privileges of the target web service.

Several 3rd party products include the vulnerable code, including WordPress, Drupal, SugarCRM, and Joomla!.

Demonstration exploit code is available at:

https://github.com/opsxcq/exploit-CVE-2016-10033

The original advisory is available at:

https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html

Dawid Golunski (@dawid_golunski) reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   Drupal core is not affected. Systems using the 3rd party PHPMailer library may be affected.

[Editor's note: The vulnerability does not affect Drupal core. Drupal has issued an advisory in this case because some Drupal customers may use the vulnerable 3rd party PHPMailer library and because of the critical nature of the vulnerability.]

The Drupal advisory will be available at:

https://www.drupal.org/psa-2016-004

Vendor URL:  www.drupal.org/psa-2016-004 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry is a follow-up to the message listed below.
Dec 26 2016 PHPMailer Input Validation Flaw Lets Remote Users Execute Arbitrary Code on the Target System



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