Vulnerabilities > CVE-2020-27718 - Unspecified vulnerability in F5 products

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

NVD

Published: 2020-12-24

Updated: 2021-07-21

Summary

When a BIG-IP ASM or Advanced WAF system running version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6.1-11.6.5.2 processes requests with JSON payload, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.

Vulnerable Configurations

Part	Description	Count
Application	F5 F5 BIG IP Application Security Manager 12.1.0 F5 BIG IP Application Security Manager 12.1.1 F5 BIG IP Application Security Manager 12.1.2 F5 BIG IP Application Security Manager 12.1.3 F5 BIG IP Application Security Manager 12.1.3.1 F5 BIG IP Application Security Manager 12.1.3.2 F5 BIG IP Application Security Manager 12.1.3.3 F5 BIG IP Application Security Manager 12.1.3.4 F5 BIG IP Application Security Manager 12.1.3.5 F5 BIG IP Application Security Manager 12.1.3.6 F5 BIG IP Application Security Manager 12.1.3.7 F5 BIG IP Application Security Manager 12.1.4 F5 BIG IP Application Security Manager 12.1.4.1 F5 BIG IP Application Security Manager 12.1.4.1.0.97.6 F5 BIG IP Application Security Manager 12.1.4.2 F5 BIG IP Application Security Manager 11.6.1 F5 BIG IP Application Security Manager 11.6.2 F5 BIG IP Application Security Manager 11.6.3 F5 BIG IP Application Security Manager 15.0.0 F5 BIG IP Application Security Manager 15.0.1 F5 BIG IP Application Security Manager 15.0.1.0.33.11 F5 BIG IP Application Security Manager 15.0.1.0.48.11 F5 BIG IP Application Security Manager 15.0.1.1 F5 BIG IP Application Security Manager 15.0.1.2 F5 BIG IP Application Security Manager 15.0.1.3 F5 BIG IP Application Security Manager 15.0.1.4 F5 BIG IP Application Security Manager 15.1.0 F5 BIG IP Application Security Manager 15.1.0.1 F5 BIG IP Application Security Manager 15.1.0.2 F5 BIG IP Application Security Manager 15.1.0.3 F5 BIG IP Application Security Manager 15.1.0.4 F5 BIG IP Application Security Manager 15.1.0.5 F5 BIG IP Application Security Manager 16.0.0 F5 BIG IP Application Security Manager 16.0.1 F5 BIG IP Application Security Manager 13.1.0 F5 BIG IP Application Security Manager 13.1.0.0 F5 BIG IP Application Security Manager 13.1.0.1 F5 BIG IP Application Security Manager 13.1.0.2 F5 BIG IP Application Security Manager 13.1.0.3 F5 BIG IP Application Security Manager 13.1.0.4 F5 BIG IP Application Security Manager 13.1.0.5 F5 BIG IP Application Security Manager 13.1.0.6 F5 BIG IP Application Security Manager 13.1.0.7 F5 BIG IP Application Security Manager 13.1.0.8 F5 BIG IP Application Security Manager 13.1.1 F5 BIG IP Application Security Manager 13.1.1.1 F5 BIG IP Application Security Manager 13.1.1.2 F5 BIG IP Application Security Manager 13.1.1.3 F5 BIG IP Application Security Manager 13.1.1.4 F5 BIG IP Application Security Manager 13.1.1.5 F5 BIG IP Application Security Manager 13.1.2 F5 BIG IP Application Security Manager 13.1.3 F5 BIG IP Application Security Manager 13.1.3.1 F5 BIG IP Application Security Manager 13.1.3.2 F5 BIG IP Application Security Manager 13.1.3.3 F5 BIG IP Application Security Manager 13.1.3.4 F5 BIG IP Application Security Manager 14.1.0 F5 BIG IP Application Security Manager 14.1.0.1 F5 BIG IP Application Security Manager 14.1.0.2 F5 BIG IP Application Security Manager 14.1.0.2.0.45.4 F5 BIG IP Application Security Manager 14.1.0.2.0.62.4 F5 BIG IP Application Security Manager 14.1.0.3 F5 BIG IP Application Security Manager 14.1.0.3.0.79.6 F5 BIG IP Application Security Manager 14.1.0.3.0.97.6 F5 BIG IP Application Security Manager 14.1.0.3.0.99.6 F5 BIG IP Application Security Manager 14.1.0.5 F5 BIG IP Application Security Manager 14.1.0.5.0.15.5 F5 BIG IP Application Security Manager 14.1.0.5.0.36.5 F5 BIG IP Application Security Manager 14.1.0.5.0.40.5 F5 BIG IP Application Security Manager 14.1.0.6 F5 BIG IP Application Security Manager 14.1.0.6.0.11.9 F5 BIG IP Application Security Manager 14.1.0.6.0.14.9 F5 BIG IP Application Security Manager 14.1.0.6.0.68.9 F5 BIG IP Application Security Manager 14.1.0.6.0.70.9 F5 BIG IP Application Security Manager 14.1.2 F5 BIG IP Application Security Manager 14.1.2-0.0.37 F5 BIG IP Application Security Manager 14.1.2-0.89.37 F5 BIG IP Application Security Manager 14.1.2.0.11.37 F5 BIG IP Application Security Manager 14.1.2.0.18.37 F5 BIG IP Application Security Manager 14.1.2.0.32.37 F5 BIG IP Application Security Manager 14.1.2.1 F5 BIG IP Application Security Manager 14.1.2.1-0.0.4 F5 BIG IP Application Security Manager 14.1.2.1.0.14.4 F5 BIG IP Application Security Manager 14.1.2.1.0.16.4 F5 BIG IP Application Security Manager 14.1.2.1.0.34.4 F5 BIG IP Application Security Manager 14.1.2.1.0.46.4 F5 BIG IP Application Security Manager 14.1.2.1.0.83.4 F5 BIG IP Application Security Manager 14.1.2.1.0.97.4 F5 BIG IP Application Security Manager 14.1.2.1.0.99.4 F5 BIG IP Application Security Manager 14.1.2.1.0.105.4 F5 BIG IP Application Security Manager 14.1.2.1.0.111.4 F5 BIG IP Application Security Manager 14.1.2.1.0.115.4 F5 BIG IP Application Security Manager 14.1.2.1.0.122.4 F5 BIG IP Application Security Manager 14.1.2.2 F5 BIG IP Application Security Manager 14.1.2.2-0.0.4 F5 BIG IP Application Security Manager 14.1.2.3 F5 BIG IP Application Security Manager 14.1.2.3-0.0.5 F5 BIG IP Application Security Manager 14.1.2.4 F5 BIG IP Application Security Manager 14.1.2.5 F5 BIG IP Application Security Manager 14.1.2.5-0.0.3 F5 BIG IP Application Security Manager 14.1.2.6 F5 BIG IP Application Security Manager 14.1.2.6-0.0.2 F5 BIG IP Application Security Manager 14.1.2.7 F5 BIG IP Application Security Manager 14.1.2.7-0.0.5 F5 BIG IP Application Security Manager 14.1.2.8 F5 BIG IP Application Security Manager 14.1.3 F5 BIG IP Application Security Manager 14.1.3.1 F5 BIG IP Advanced WEB Application Firewall 11.6.1 F5 BIG IP Advanced WEB Application Firewall 11.6.2 F5 BIG IP Advanced WEB Application Firewall 11.6.3 F5 BIG IP Advanced WEB Application Firewall 11.6.4 F5 BIG IP Advanced WEB Application Firewall 12.1.0 F5 BIG IP Advanced WEB Application Firewall 12.1.1 F5 BIG IP Advanced WEB Application Firewall 12.1.2 F5 BIG IP Advanced WEB Application Firewall 12.1.3 F5 BIG IP Advanced WEB Application Firewall 12.1.4 F5 BIG IP Advanced WEB Application Firewall 12.1.5 F5 BIG IP Advanced WEB Application Firewall 16.0.0 F5 BIG IP Advanced WEB Application Firewall 16.0.1 F5 BIG IP Advanced WEB Application Firewall 13.1.0 F5 BIG IP Advanced WEB Application Firewall 13.1.1 F5 BIG IP Advanced WEB Application Firewall 13.1.3 F5 BIG IP Advanced WEB Application Firewall 13.1.3.4 F5 BIG IP Advanced WEB Application Firewall 15.0.0 F5 BIG IP Advanced WEB Application Firewall 15.0.1 F5 BIG IP Advanced WEB Application Firewall 15.0.1.4 F5 BIG IP Advanced WEB Application Firewall 15.1.0 F5 BIG IP Advanced WEB Application Firewall 15.1.0.2 F5 BIG IP Advanced WEB Application Firewall 15.1.0.4 F5 BIG IP Advanced WEB Application Firewall 15.1.0.5 F5 BIG IP Advanced WEB Application Firewall 14.1.0 F5 BIG IP Advanced WEB Application Firewall 14.1.0.1 F5 BIG IP Advanced WEB Application Firewall 14.1.0.3 F5 BIG IP Advanced WEB Application Firewall 14.1.2 F5 BIG IP Advanced WEB Application Firewall 14.1.2-0.0.37 F5 BIG IP Advanced WEB Application Firewall 14.1.2-0.89.37 F5 BIG IP Advanced WEB Application Firewall 14.1.2.1 F5 BIG IP Advanced WEB Application Firewall 14.1.2.1-0.0.4 F5 BIG IP Advanced WEB Application Firewall 14.1.2.2 F5 BIG IP Advanced WEB Application Firewall 14.1.2.2-0.0.4 F5 BIG IP Advanced WEB Application Firewall 14.1.2.3 F5 BIG IP Advanced WEB Application Firewall 14.1.2.3-0.0.5 F5 BIG IP Advanced WEB Application Firewall 14.1.2.5 F5 BIG IP Advanced WEB Application Firewall 14.1.2.5-0.0.3 F5 BIG IP Advanced WEB Application Firewall 14.1.2.6 F5 BIG IP Advanced WEB Application Firewall 14.1.2.6-0.0.2 F5 BIG IP Advanced WEB Application Firewall 14.1.2.7 F5 BIG IP Advanced WEB Application Firewall 14.1.2.7-0.0.5 F5 BIG IP Advanced WEB Application Firewall 14.1.2.8 F5 BIG IP Advanced WEB Application Firewall 14.1.3	154

References

https://support.f5.com/csp/article/K58102101