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HIGH · 7.5

CVE-2021-23042

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, undisclose...

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
F5Big-Ip Access Policy Manager>= 12.1.0, < 12.1.6
F5Big-Ip Advanced Firewall Manager>= 12.1.0, < 12.1.6
F5Big-Ip Advanced Web Application Firewall>= 12.1.0, < 12.1.6
F5Big-Ip Analytics>= 12.1.0, < 12.1.6
F5Big-Ip Application Acceleration Manager>= 12.1.0, < 12.1.6
F5Big-Ip Application Security Manager>= 12.1.0, < 12.1.6
F5Big-Ip Ddos Hybrid Defender>= 12.1.0, < 12.1.6
F5Big-Ip Domain Name System>= 12.1.0, < 12.1.6
F5Big-Ip Fraud Protection Service>= 12.1.0, < 12.1.6
F5Big-Ip Global Traffic Manager>= 12.1.0, < 12.1.6
F5Big-Ip Link Controller>= 12.1.0, < 12.1.6
F5Big-Ip Local Traffic Manager>= 12.1.0, < 12.1.6
F5Big-Ip Policy Enforcement Manager>= 12.1.0, < 12.1.6
F5Big-Ip Ssl Orchestrator>= 12.1.0, < 12.1.6

Related Weaknesses (CWE)

CWE-400

References

FAQ

What is CVE-2021-23042?

CVE-2021-23042 is a vulnerability with a CVSS score of 7.5 (HIGH). 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, undisclose...

How severe is CVE-2021-23042?

CVE-2021-23042 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-23042?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager.