Improper input validation in Drupal - #VU17065
Published: January 17, 2019
Vulnerability identifier: #VU17065
CSH Severity: Medium
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary PHP code on the target system.
The vulnerability exists due to improper validation of the untrusted phar:// URI. A remote attacker can send a specially crafted request and execute arbitrary PHP code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Drupal
drupal7 (Debian package)
drupal7 (Debian package)
Remediation
Install updates from vendor's website.
Drupal - addressed in versions 7.62, 8.5.9, 8.6.6
drupal7 (Debian package) - update to 7.52-2+deb9u6
drupal7 (Debian package) - update to 7.52-2+deb9u6