// For flags

CVE-2017-6921

File REST resource does not properly validate

Severity Score

5.9
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In Drupal 8 prior to 8.3.4; The file REST resource does not properly validate some fields when manipulating files. A site is only affected by this if the site has the RESTful Web Services (rest) module enabled, the file REST resource is enabled and allows PATCH requests, and an attacker can get or register a user account on the site with permissions to upload files and to modify the file resource.

En Drupal 8, en versiones anteriores a la 8.3.4, el recurso de archivo REST no valida correctamente algunos campos al manipular archivos. Un sitio solo se ve afectado por esto si tiene el módulo RESTful Web Services (rest) habilitado, el recurso de archivo REST habilitado, permite peticiones PATCH, y un atacante es capaz de obtener o registrar una cuenta de usuario en el sitio con permisos para subir archivos y modificar el recurso de archivo.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-03-16 CVE Reserved
  • 2019-01-15 CVE Published
  • 2024-08-10 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Drupal
Search vendor "Drupal"
Drupal
Search vendor "Drupal" for product "Drupal"
>= 8.0.0 < 8.3.4
Search vendor "Drupal" for product "Drupal" and version " >= 8.0.0 < 8.3.4"
-
Affected