CVE-2021-23042

Home/CVE/On 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, 13.1.x before 13.1.4, and 12.1.x b

CVE

On 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, 13.1.x before 13.1.4, and 12.1.x b

On 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, 13.1.x before 13.1.4, and 12.1.x before 12.1.6, when an HTTP profile is configured on a virtual server, undisclosed requests can cause a significant increase in system resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

HIGH · CVSS 7.5 EPSS 0.00647

Schedule remediation

CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

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Weakness Classification

CWE-400Uncontrolled Resource Consumption

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Affected Products & Versions

f5 big-ip access policy manager>= 12.1.0 and < 12.1.6
f5 big-ip access policy manager>= 13.1.0 and < 13.1.4
f5 big-ip access policy manager>= 14.1.0 and < 14.1.4
f5 big-ip access policy manager>= 15.1.0 and < 15.1.3
f5 big-ip access policy manager>= 16.0.0 and < 16.0.1.2
f5 big-ip advanced firewall manager>= 12.1.0 and < 12.1.6
f5 big-ip advanced firewall manager>= 13.1.0 and < 13.1.4
f5 big-ip advanced firewall manager>= 14.1.0 and < 14.1.4
Show all 60 affected productsf5 big-ip advanced firewall manager>= 15.1.0 and < 15.1.3
f5 big-ip advanced firewall manager>= 16.0.0 and < 16.0.1.2
f5 big-ip advanced web application firewall>= 12.1.0 and < 12.1.6
f5 big-ip advanced web application firewall>= 13.1.0 and < 13.1.4
f5 big-ip advanced web application firewall>= 14.1.0 and < 14.1.4
f5 big-ip advanced web application firewall>= 15.1.0 and < 15.1.3
f5 big-ip advanced web application firewall>= 16.0.0 and < 16.0.1.2
f5 big-ip analytics>= 12.1.0 and < 12.1.6
f5 big-ip analytics>= 13.1.0 and < 13.1.4
f5 big-ip analytics>= 14.1.0 and < 14.1.4
f5 big-ip analytics>= 15.1.0 and < 15.1.3
f5 big-ip analytics>= 16.0.0 and < 16.0.1.2
f5 big-ip application acceleration manager>= 12.1.0 and < 12.1.6
f5 big-ip application acceleration manager>= 13.1.0 and < 13.1.4
f5 big-ip application acceleration manager>= 14.1.0 and < 14.1.4
f5 big-ip application acceleration manager>= 15.1.0 and < 15.1.3
f5 big-ip application acceleration manager>= 16.0.0 and < 16.0.1.2
f5 big-ip application security manager>= 12.1.0 and < 12.1.6
f5 big-ip application security manager>= 13.1.0 and < 13.1.4
f5 big-ip application security manager>= 14.1.0 and < 14.1.4
f5 big-ip application security manager>= 15.1.0 and < 15.1.3
f5 big-ip application security manager>= 16.0.0 and < 16.0.1.2
f5 big-ip ddos hybrid defender>= 12.1.0 and < 12.1.6
f5 big-ip ddos hybrid defender>= 13.1.0 and < 13.1.4
f5 big-ip ddos hybrid defender>= 14.1.0 and < 14.1.4
f5 big-ip ddos hybrid defender>= 15.1.0 and < 15.1.3
f5 big-ip ddos hybrid defender>= 16.0.0 and < 16.0.1.2
f5 big-ip domain name system>= 12.1.0 and < 12.1.6
f5 big-ip domain name system>= 13.1.0 and < 13.1.4
f5 big-ip domain name system>= 14.1.0 and < 14.1.4
f5 big-ip domain name system>= 15.1.0 and < 15.1.3
f5 big-ip domain name system>= 16.0.0 and < 16.0.1.2
f5 big-ip fraud protection service>= 12.1.0 and < 12.1.6
f5 big-ip fraud protection service>= 13.1.0 and < 13.1.4
f5 big-ip fraud protection service>= 14.1.0 and < 14.1.4
f5 big-ip fraud protection service>= 15.1.0 and < 15.1.3
f5 big-ip fraud protection service>= 16.0.0 and < 16.0.1.2
f5 big-ip global traffic manager>= 12.1.0 and < 12.1.6
f5 big-ip global traffic manager>= 13.1.0 and < 13.1.4
f5 big-ip global traffic manager>= 14.1.0 and < 14.1.4
f5 big-ip global traffic manager>= 15.1.0 and < 15.1.3
f5 big-ip global traffic manager>= 16.0.0 and < 16.0.1.2
f5 big-ip link controller>= 12.1.0 and < 12.1.6
f5 big-ip link controller>= 13.1.0 and < 13.1.4
f5 big-ip link controller>= 14.1.0 and < 14.1.4
f5 big-ip link controller>= 15.1.0 and < 15.1.3
f5 big-ip link controller>= 16.0.0 and < 16.0.1.2
f5 big-ip local traffic manager>= 12.1.0 and < 12.1.6
f5 big-ip local traffic manager>= 13.1.0 and < 13.1.4
f5 big-ip local traffic manager>= 14.1.0 and < 14.1.4
f5 big-ip local traffic manager>= 15.1.0 and < 15.1.3
f5 big-ip local traffic manager>= 16.0.0 and < 16.0.1.2

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Scoring & Timeline

7.5

HIGH · CVSS v3.1 · f5sirt@f5.com

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD14 Sep 2021 · 03:15 PM

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

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://support.f5.com/csp/article/K93231374Vendor Advisory

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