PHAR stream wrapper Arbitrary PHP code execution

CVE-2019-6339

9.8CRITICAL

Key Information

Vendor: Drupal
Status: Drupal Core
Vendor: CVE Published:; 22 January 2019

Badges

👾 Exploit Exists🔴 Public PoC🟡 EPSS 74%

Summary

In Drupal Core versions 7.x prior to 7.62, 8.6.x prior to 8.6.6 and 8.5.x prior to 8.5.9; A remote code execution 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) may be performing file operations on insufficiently validated user input, thereby being exposed to this vulnerability. This vulnerability is mitigated by the fact that such code paths typically require access to an administrative permission or an atypical configuration.

Affected Version(s)

Drupal core < 7.62

Drupal core < 8.6.6.

Drupal core < 8.5.9

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

drupal-cve-2019-6339
Created by Vulnmachines