Cyber Resilience

CVE-2021-25643

Medium

Published: 26 May 2021

Published
26 May 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0014 33.2th percentile
Risk Priority 10 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-25643 is a medium-severity Cleartext Transmission of Sensitive Information (CWE-319) vulnerability in Couchbase Couchbase Server. Its CVSS base score is 4.9 (Medium).

Operationally, ranked at the 33.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An issue was discovered in Couchbase Server 5.x and 6.x before 6.5.2 and 6.6.x before 6.6.2. Internal users with administrator privileges, @cbq-engine-cbauth and @index-cbauth, leak credentials in cleartext in the indexer.log file when they make a /listCreateTokens, /listRebalanceTokens, or /listMetadataTokens…

more

call.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

couchbase
couchbase server
5.0.0 — 6.5.2 · 6.6.0 — 6.6.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-319

Role-based training covers secure transmission methods, mitigating cleartext transmission of sensitive data.

addresses: CWE-319

By requiring documented security controls for information exchanges, the control reduces the risk of cleartext transmission of sensitive data.

addresses: CWE-319

Mapping transmission actions in data flows helps prevent cleartext transmission of sensitive information.

addresses: CWE-319

Settings can enforce secure transmission protocols to prevent cleartext transmission of sensitive data.

addresses: CWE-319

Policy addresses secure transport and handling of media to avoid cleartext transmission of sensitive information.

addresses: CWE-319

Enforces safeguards against cleartext transmission of CUI when data leaves organizational boundaries to external systems.

addresses: CWE-319

Explicit controls and continuous oversight on external system services prevent cleartext transmission of sensitive information over provider-managed channels.

addresses: CWE-319

Key-establishment procedures specify secure distribution channels that preclude cleartext transmission of key material.

References