Attackers are leveraging a vulnerability patched nearly three years ago to target Drupal sites. Background On September 4, Drupal published PSA-2019-09-04, a public service announcement (PSA) for a vulnerability in a third-party library in a Drupal module that’s being actively exploited in the wild.

CVE-2017-9841: Drupal Sites Exploited Using PHPUnit Vulnerability in Mailchimp Modules (PSA-2019-0904)

Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 5.x before 5.6.3 allows remote attackers to execute arbitrary PHP code via HTTP POST data beginning with a "<?php " substring, as demonstrated by an attack on a site with an exposed /vendor folder, i.e., external access to the /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php URI.

Detections

Analytics

CVE-2017-9841

critical

Vulnerable Software