Privilege Escalation in Drupal - #VU541

 

Privilege Escalation in Drupal - #VU541

Published: September 19, 2016


Vulnerability identifier: #VU541
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Drupal
Affected software:
Drupal

Detailed vulnerability description

The vulnerability allows users with the "upload files" permission to get elevated privileges on the target system.
The weakness is caused by Upload module that supports a malicious user with increased privileges and permissions to perform activity forbidden before: to edit nodes, delete files or download nodes attachments.
Successful exploitation of the vulnerability allows users to enlarge own privileges and access functionality.

Remediation


Sources