Is CVE-2021-23014 in the CISA KEV catalog?

No. CVE-2021-23014 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-23014?

CVE-2021-23014 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-23014?

CVE-2021-23014 has an EPSS score of 0.80% (52th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-23014?

Upgrade big-ip advanced web application firewall to 16.0.1.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-23014

HIGH

8.8

CVSS v3

NVD

Description

On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, and 14.1.x before 14.1.4, BIG-IP Advanced WAF and ASM are missing authorization checks for file uploads to a specific directory within the REST API which might allow Authenticated users with guest privileges to upload files. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CWE-862Missing Authorization

How to fix

Remediation Available

big-ip advanced web application firewallNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23014derived from NVD

big-ip application security managerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23014derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.80%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Vendor Advisory1

support.f5.com

Related Vulnerabilities

Other CWE-862 (Missing Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-39226	Critical	9.8	100%	KEV	Fix
CVE-2022-0543	Critical	10.0	100%	KEV	Fix
CVE-2021-21978	Critical	9.8	99%	-	Fix
CVE-2023-52163	High	8.8	96%	KEV	-
CVE-2022-1329	High	8.8	93%	-	-
CVE-2023-6875	Critical	9.8	90%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.