Denial of service in Drupal - CVE-2016-3162
Published: September 13, 2016 / Updated: September 14, 2016
Vulnerability identifier: #VU424
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-3162
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Drupal
Affected software:
Drupal
Drupal
Detailed vulnerability description
The weakness allows attackers to cause denial of service on the target system.
The vulnerability is caused by attacker's influence on files uploaded by a valid user. A malicious user can read and change the links to the uploaded files locating in unsubmitted forms. Continuous attacks can lead to complete blockage of the uploaded files and deleting of temporary files.
Successful exploitation of this vulnerability results in denial of service on the vulnerable system.
The vulnerability is caused by attacker's influence on files uploaded by a valid user. A malicious user can read and change the links to the uploaded files locating in unsubmitted forms. Continuous attacks can lead to complete blockage of the uploaded files and deleting of temporary files.
Successful exploitation of this vulnerability results in denial of service on the vulnerable system.
How to mitigate CVE-2016-3162
Update 7.x to 7.43.
https://www.drupal.org/project/drupal/releases/7.43
Update 8.0.x to 8.0.4
https://www.drupal.org/project/drupal/releases/8.0.4
https://www.drupal.org/project/drupal/releases/7.43
Update 8.0.x to 8.0.4
https://www.drupal.org/project/drupal/releases/8.0.4