Security Alert (A21-01-05): Vulnerability in Drupal

Description:

Drupal has released a security advisory to address a vulnerability in PEAR Archive_Tar library which is used in Drupal Core by default. Systems which allow users to upload and process files with extensions .tar, .tar.gz, .bz2, or .tlz are affected. A remote attacker may upload a maliciously crafted file to a vulnerable system to exploit the vulnerabilities.

Please note that Drupal 8 prior to version 8.9.x has reached its End-Of-Life (EOL). No security updates will be provided after that. Users should arrange upgrading the Drupal to supported versions or migrating to other supported technology.

Affected Systems:

• Drupal version 7.x
• Drupal version 8.9.x
• Drupal version 9.0.x
• Drupal version 9.1.x

Impact:

A successful attack could lead to remote code execution on an affected system.

Recommendation:

The product vendor has released patches to address the issues.

• Drupal 7.78
  https://www.drupal.org/project/drupal/releases/7.78
• Drupal 8.9.13
  https://www.drupal.org/project/drupal/releases/8.9.13
• Drupal 9.0.11
  https://www.drupal.org/project/drupal/releases/9.0.11
• Drupal 9.1.3
  https://www.drupal.org/project/drupal/releases/9.1.3

More Information:

• https://www.drupal.org/sa-core-2021-001
• https://www.drupal.org/core/release-cycle-overview
• https://www.hkcert.org/security-bulletin/drupal-remote-code-execution-vulnerabilities_20210122
• https://us-cert.cisa.gov/ncas/current-activity/2021/01/21/drupal-releases-security-updates
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36193