Cyber Resilience

CVE-2021-20333

MediumPublic PoC

Published: 23 July 2021

Published
23 July 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Score 0.0037 59.6th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-20333 is a medium-severity Improper Output Neutralization for Logs (CWE-117) vulnerability in Mongodb Mongodb. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 40.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Sending specially crafted commands to a MongoDB Server may result in artificial log entries being generated or for log entries to be split. This issue affects MongoDB Server v3.6 versions prior to 3.6.20; MongoDB Server v4.0 versions prior to 4.0.21…

more

and MongoDB Server v4.2 versions prior to 4.2.10.

CWE(s)
CWE-117CWE-116

Related Threats

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

Affected Assets

mongodb
mongodb
3.6.0 — 3.6.20 · 4.0.0 — 4.0.21 · 4.2.0 — 4.2.10

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.

SI-15 Information Output Filtering
addresses: CWE-116 CWE-117

Validating that output matches expected content directly mitigates failures to properly encode or escape data for its destination context.

AU-1 Policy and Procedures
addresses: CWE-117

Policy and procedures require sanitization and neutralization when generating audit logs to avoid injection issues.

References