CVE-2020-9039

CRITICALNuclei

Couchbase Server - Broken Access Control

Title source: github.com
STIX 2.1 vulnerability

Record summary

CVE-2020-9039 has a selected CVSS score of 9.8 (critical); EIP currently links 1 Nuclei template.

Description

Couchbase Server 4.0.0, 4.1.0, 4.1.1, 4.5.0, 4.5.1, 4.6.0 through 4.6.5, 5.0.0, 5.1.1, 5.5.0 and 5.5.1 have Insecure Permissions for the projector and indexer REST endpoints (they allow unauthenticated access).The /settings REST endpoint exposed by the projector process is an endpoint that administrators can use for various tasks such as updating configuration and collecting performance profiles. The endpoint was unauthenticated and has been updated to only allow authenticated users to access these administrative APIs.

Description source: CVE List

Exploitation context

Available material

Nuclei templates
1

Nuclei templates

1
ProjectDiscoveryCRITICALCouchbase Server - Broken Access Control

Couchbase Server versions 4.0.0, 4.1.0, 4.1.1, 4.5.0, 4.5.1, 4.6.0-4.6.5, 5.0.0, 5.1.1, 5.5.0, and 5.5.1 contain insecure permissions for the projector and indexer REST endpoints caused by unauthenticated access, letting attackers access administrative APIs without authentication, exploit requires no special conditions.

Impact

Attackers can access and modify administrative settings, potentially leading to data tampering or system compromise.

Remediation

Update to the latest version where the /settings REST endpoint requires authentication.

Authorspussycat0x
Template tagscvecve2020couchbaseunauth
Shodan: html:"Couchbase"
https://docs.couchbase.com/server/current/index-rest-settings/index.html#Settings

Source: ProjectDiscovery

References

2