Cyber Resilience

CVE-2021-23026

High

Published: 14 September 2021

Published
14 September 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0030 53.9th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-23026 is a high-severity CSRF (CWE-352) vulnerability in F5 Big-Ip Access Policy Manager. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 46.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

BIG-IP version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x and 11.6.x and all versions of BIG-IQ 8.x, 7.x, and 6.x are vulnerable to cross-site request forgery (CSRF) attacks through iControl…

more

SOAP. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CWE(s)
CWE-352

Related Threats

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

Affected Assets

f5
big-ip access policy manager
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip advanced firewall manager
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip advanced web application firewall
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip analytics
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip application acceleration manager
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip application security manager
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip ddos hybrid defender
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip domain name system
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip fraud protection service
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
f5
big-ip global traffic manager
13.1.0 — 13.1.4 · 14.1.0 — 14.1.4 · 15.1.0 — 15.1.2
+5 more product configuration(s) — see NVD for full list

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-352

Awareness training educates users on avoiding untrusted links and actions that can be exploited via CSRF.

IA-11 Re-authentication
addresses: CWE-352

Requiring user re-entry of credentials for sensitive actions prevents automated forgery of requests without active user participation.

PM-14 Testing, Training, and Monitoring
addresses: CWE-352

Security testing regimens explicitly include checks for missing or ineffective anti-CSRF protections in web applications.

SI-4 System Monitoring
addresses: CWE-352

Detects anomalous request patterns consistent with cross-site request forgery.

References