CVE-2020-9039

CRITICAL NUCLEI

Couchbase Server 4.0.0-4.6.5, 5.0.0, 5.1.1, 5.5.0-5.5.1 - Unauthenticated Insecure Permissions

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2020-9039 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

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.

Nuclei Templates (1)

Couchbase Server - Broken Access Control
CRITICALby pussycat0x
Shodan: html:"Couchbase"

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0387
EPSS Percentile 88.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-276
Status published
Products (10)
couchbase/couchbase_server 4.0.0
couchbase/couchbase_server 4.1.0
couchbase/couchbase_server 4.1.1
couchbase/couchbase_server 4.5.0
couchbase/couchbase_server 4.5.1
couchbase/couchbase_server 5.0.0
couchbase/couchbase_server 5.1.1
couchbase/couchbase_server 5.5.0
couchbase/couchbase_server 5.5.1
couchbase/couchbase_server 4.6.0 - 4.6.5
Published Feb 22, 2020
Tracked Since Feb 18, 2026