CVE-2020-1955 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://docs.couchdb.org/en/master/cve/2020-1955.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8