CVE-2021-23015: High severity F5 BIG-IP Access Policy Manager vulnerability

Q: What is the severity of CVE-2021-23015?

The severity of CVE-2021-23015 is classified as critical due to the ability of authenticated users to bypass security restrictions.

Q: How do I fix CVE-2021-23015?

To fix CVE-2021-23015, upgrade to BIG-IP versions 15.1.3 or later, 14.1.4.2 or later, 13.1.4 or later, or 16.0.1.1 or later.

Q: Which versions are affected by CVE-2021-23015?

CVE-2021-23015 affects F5 BIG-IP versions 15.1.x before 15.1.3, 14.1.x before 14.1.4.2, 13.1.0.8 through 13.1.3.6, and all versions of 16.0.x.

Q: What types of roles are impacted by CVE-2021-23015?

CVE-2021-23015 specifically impacts authenticated users who are assigned the 'Administrator' role.

Q: Is CVE-2021-23015 specific to Appliance Mode?

Yes, CVE-2021-23015 is specifically related to vulnerabilities when running F5 BIG-IP in Appliance Mode.

Published May 10, 2021

Updated

On BIG-IP 15.1.x before 15.1.3, 14.1.x before 14.1.4.2, 13.1.0.8 through 13.1.3.6, and all versions of 16.0.x, when running in Appliance Mode, an authenticated user assigned the 'Administrator' role may be able to bypass Appliance Mode restrictions utilizing undisclosed iControl REST endpoints. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected Software

56 affected components

F5 BIG-IP Access Policy Manager>=13.1.0<13.1.4

F5 BIG-IP Access Policy Manager>=14.1.0<14.1.4

F5 BIG-IP Access Policy Manager>=15.1.0<15.1.3

F5 BIG-IP Access Policy Manager>=16.0.0<16.0.1.1

F5 BIG-IP Advanced Firewall Manager>=13.1.0<13.1.4

F5 BIG-IP Advanced Firewall Manager>=14.1.0<14.1.4

F5 BIG-IP Advanced Firewall Manager>=15.1.0<15.1.3

F5 BIG-IP Advanced Firewall Manager>=16.0.0<16.0.1.1

F5 Big-ip Advanced Web Application Firewall>=13.1.0<13.1.4

F5 Big-ip Advanced Web Application Firewall>=14.1.0<=14.1.4

F5 Big-ip Advanced Web Application Firewall>=15.1.0<15.1.3

F5 Big-ip Advanced Web Application Firewall>=16.0.0<16.0.1.1

F5 BIG-IP Analytics>=13.1.0<13.1.4

F5 BIG-IP Analytics>=14.1.0<14.1.4

F5 BIG-IP Analytics>=15.1.0<15.1.3

F5 BIG-IP Analytics>=16.0.0<16.0.1.1

F5 Big-ip Application Acceleration Manager>=13.1.0<13.1.4

F5 Big-ip Application Acceleration Manager>=14.1.0<14.1.4

F5 Big-ip Application Acceleration Manager>=15.1.0<15.1.3

F5 Big-ip Application Acceleration Manager>=16.0.0<16.0.1.1

F5 BIG-IP Application Security Manager>=13.1.0<13.1.4

F5 BIG-IP Application Security Manager>=14.1.0<14.1.4

F5 BIG-IP Application Security Manager>=15.1.0<15.1.3

F5 BIG-IP Application Security Manager>=16.0.0<16.0.1.1

F5 Big-ip Ddos Hybrid Defender>=13.1.0<13.1.4

F5 Big-ip Ddos Hybrid Defender>=14.1.0<14.1.4

F5 Big-ip Ddos Hybrid Defender>=15.1.0<15.1.3

F5 Big-ip Ddos Hybrid Defender>=16.0.0<16.0.1.1

F5 Big-ip Domain Name System>=13.1.0<13.1.4

F5 Big-ip Domain Name System>=14.1.0<14.1.4

F5 Big-ip Domain Name System>=15.1.0<15.1.3

F5 Big-ip Domain Name System>=16.0.0<16.0.1.1

F5 Big-ip Fraud Protection Service>=13.1.0<13.1.4

F5 Big-ip Fraud Protection Service>=14.1.0<14.1.4

F5 Big-ip Fraud Protection Service>=15.1.0<15.1.3

F5 Big-ip Fraud Protection Service>=16.0.0<16.0.1.1

F5 Big-ip Global Traffic Manager>=13.1.0<13.1.4

F5 Big-ip Global Traffic Manager>=14.1.0<14.1.4

F5 Big-ip Global Traffic Manager>=15.1.0<15.1.3

F5 Big-ip Global Traffic Manager>=16.0.0<16.0.1.1

F5 Big-ip Link Controller>=13.1.0<13.1.4

F5 Big-ip Link Controller>=14.1.0<14.1.4

F5 Big-ip Link Controller>=15.1.0<15.1.3

F5 Big-ip Link Controller>=16.0.0<16.0.1.1

F5 Big-ip Local Traffic Manager>=13.1.0<13.1.4

F5 Big-ip Local Traffic Manager>=14.1.0<14.1.4

F5 Big-ip Local Traffic Manager>=15.1.0<15.1.3

F5 Big-ip Local Traffic Manager>=16.0.0<16.0.1.1

F5 Big-ip Policy Enforcement Manager>=13.1.0<13.1.4

F5 Big-ip Policy Enforcement Manager>=14.1.0<14.1.4

F5 Big-ip Policy Enforcement Manager>=15.1.0<15.1.3

F5 Big-ip Policy Enforcement Manager>=16.0.0<16.0.1.1

F5 BIG-IP SSL Orchestrator>=13.1.0<13.1.4

F5 BIG-IP SSL Orchestrator>=14.1.0<14.1.4

F5 BIG-IP SSL Orchestrator>=15.1.0<15.1.3

F5 BIG-IP SSL Orchestrator>=16.0.0<16.0.1.1

Event History

May 10, 2021

CVE Published

via MITRE·02:40 PM

Data Sourced

via MITRE·02:40 PM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2021-23015?

The severity of CVE-2021-23015 is classified as critical due to the ability of authenticated users to bypass security restrictions.

How do I fix CVE-2021-23015?

To fix CVE-2021-23015, upgrade to BIG-IP versions 15.1.3 or later, 14.1.4.2 or later, 13.1.4 or later, or 16.0.1.1 or later.

Which versions are affected by CVE-2021-23015?