CVE Vulnerabilities

CVE-2019-19826

Deserialization of Untrusted Data

Published: Dec 16, 2019 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

The Views Dynamic Fields module through 7.x-1.0-alpha4 for Drupal makes insecure unserialize calls in handlers/views_handler_filter_dynamic_fields.inc, as demonstrated by PHP object injection, involving a field_names object and an Archive_Tar object, for file deletion. Code execution might also be possible.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Name Vendor Start Version End Version
Views_dynamic_field Drupal * 6.x-1.4 (including)
Views_dynamic_field Drupal 7.x-1.0-alpha1 (including) 7.x-1.0-alpha1 (including)
Views_dynamic_field Drupal 7.x-1.0-alpha2 (including) 7.x-1.0-alpha2 (including)
Views_dynamic_field Drupal 7.x-1.0-alpha3 (including) 7.x-1.0-alpha3 (including)
Views_dynamic_field Drupal 7.x-1.0-alpha4 (including) 7.x-1.0-alpha4 (including)

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References