// For flags

CVE-2020-1955

 

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

CouchDB version 3.0.0 shipped with a new configuration setting that governs access control to the entire database server called `require_valid_user_except_for_up`. It was meant as an extension to the long standing setting `require_valid_user`, which in turn requires that any and all requests to CouchDB will have to be made with valid credentials, effectively forbidding any anonymous requests. The new `require_valid_user_except_for_up` is an off-by-default setting that was meant to allow requiring valid credentials for all endpoints except for the `/_up` endpoint. However, the implementation of this made an error that lead to not enforcing credentials on any endpoint, when enabled. CouchDB versions 3.0.1[1] and 3.1.0[2] fix this issue.

CouchDB versión 3.0.0, es enviada con una nueva configuración que rige el control de acceso a todo el servidor de base de datos llamada "require_valid_user_except_for_up". Se suponía que una extensión del antiguo ajuste "require_valid_user", que a su vez requiere que todas y cada una de las peticiones hacia CouchDB tengan que hacerse con credenciales válidas, prohibiendo efectivamente cualquier petición anónima. El nuevo "require_valid_user_except_for_up" es un ajuste desactivado por defecto que se supone que permite requerir credenciales válidas para todos los endpoints excepto para el endpoint "/_up". Sin embargo, la implementación de éste cometió un error que conllevó a no aplicar las credenciales sobre ningún endpoint, cuando estaba habilitado. CouchDB versiones 3.0.1[1] y 3.1.0[2] corrige este problema.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-12-02 CVE Reserved
  • 2020-05-20 CVE Published
  • 2023-04-12 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-306: Missing Authentication for Critical Function
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache
Search vendor "Apache"
Couchdb
Search vendor "Apache" for product "Couchdb"
3.0.0
Search vendor "Apache" for product "Couchdb" and version "3.0.0"
-
Affected