Input validation error in Drupal - CVE-2019-6339
Published: January 28, 2019
Vulnerability identifier: #VU17234
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-6339
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Drupal
Affected software:
Drupal
Drupal
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists in PHP's built-in phar stream wrapper when performing file operations on an untrusted phar:// URI. Some Drupal code (core, contrib, and custom) due to insufficient validation of user-supplied input. A remote attacker can submit specially crafted input and execute arbitrary PHP code.
How to mitigate CVE-2019-6339
The vulnerability has been fixed in the versions 7.62, 8.5.9, 8.6.6.