CVE & CISA-KEV Catalog

CVE-2021-23001

MEDIUM

4.3

CVSS v3

Description

On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, the upload functionality in BIG-IP Advanced WAF and BIG-IP ASM allows an authenticated user to upload files to the BIG-IP system using a call to an undisclosed iControl REST endpoint. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

CWE-434Unrestricted File Upload

How to fix

Remediation Available

big-ip access policy managerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip advanced firewall managerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip advanced web application firewallNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip analyticsNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip application acceleration managerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip application security managerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip ddos hybrid defenderNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip domain name systemNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip fraud protection serviceNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip global traffic managerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip link controllerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip local traffic managerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

big-ip policy enforcement managerNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived from NVD

ssl orchestratorNVD

Affected:>= 16.0.0, < 16.0.1.1Fixed in:16.0.1.1CVE-2021-23001derived 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

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.57%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Vendor Advisory1

support.f5.com

Related Vulnerabilities

Other CWE-434 (Unrestricted File Upload) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-12617	High	8.1	100%	KEV	Fix
CVE-2018-15961	Critical	9.8	100%	KEV	-
CVE-2021-31207	Medium	6.6	100%	KEV + Ransom	Fix
CVE-2017-12615	High	8.1	100%	KEV + Ransom	-
CVE-2025-31324	Critical	10.0	99%	KEV + Ransom	-
CVE-2024-50623	Critical	9.8	99%	KEV + Ransom	Fix

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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.