Security restrictions bypass in Drupal - CVE-2017-6922

 

Security restrictions bypass in Drupal - CVE-2017-6922

Published: June 23, 2017


Vulnerability identifier: #VU7179
CSH Severity: Medium
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:A/U:Green
CVE-ID: CVE-2017-6922
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vendor: Drupal
Affected software:
Drupal

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to insufficient file protection. A remote attacker can bypass access restrictions and view private files that have been uploaded by an anonymous user but not permanently attached to content on the site.

Successful exploitation of the vulnerability may result in access bypass.

Note: The vulnerability was being actively exploited for spam purposes.

How to mitigate CVE-2017-6922

Update to version 7.56 and 8.3.4.

Sources