Cyber Resilience

CVE-2021-3654

MediumPublic PoC

Published: 02 March 2022

Published
02 March 2022
Modified
21 November 2024
KEV Added
—
Patch
29 July 2021
CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.8718 99.5th percentile
Risk Priority 65 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3654 is a medium-severity Open Redirect (CWE-601) vulnerability in Openstack Nova. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 0.5% 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

A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.

CWE(s)
CWE-601

Related Threats

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

Affected Assets

openstack
nova
≤ 21.2.3 · 22.0.0 — 22.2.3 · 23.0.0 — 23.0.3
redhat
openstack platform
16.1, 16.2

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.

AT-2 Literacy Training and Awareness
addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation
addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

References