This indicates an attack attempt to exploit an Authentication Bypass Vulnerability in F5 BIG-IP.
This vulnerability is due to lack of validation of user-supplied inputs. Successful exploitation could lead to remote code execution in the context of the vulnerable application.

description-logoOutbreak Alert

Joint Cybersecurity Advisory (CSA) has released the top Common Vulnerabilities and Exposures (CVEs) used since 2020 by Peoples Republic of China (PRC) state-sponsored cyber actors as assessed by the National Security Agency (NSA), Cybersecurity and Infrastructure Security Agency (CISA), and Federal Bureau of Investigation (FBI). Previously, FortiGuard labs has already published various Outbreaks Alerts included in the released CISA's advisory such as: Apache Log4j, Hikvision Webserver Vulnerability, Atlassian Confluence OGNL RCE Vulnerability, Microsoft Exchange Server RCE Vulnerabilities etc. See the full list at: https://www.fortiguard.com/outbreak-alert Links to dedicated reports on each published outbreak by FortiGuard Labs are added to Additional Resources section below.

View the full Outbreak Alert Report

affected-products-logoAffected Products

F5 BIG-IP 16.1.x versions prior to
F5 BIG-IP 15.1.x versions prior to
F5 BIG-IP 14.1.x versions prior to
F5 BIG-IP 13.1.x versions prior to 13.1.5
F5 BIG-IP 12.1.x
F5 BIG-IP 11.6.x

Impact logoImpact

System Compromise: Remote attackers can gain control of vulnerable systems.

recomended-action-logoRecommended Actions

Apply the most recent upgrade or patch from the vendor.

Telemetry logoTelemetry


IPS (Regular DB)
IPS (Extended DB)

Version Updates

Date Version Detail
2022-05-26 20.322 Sig Added
2022-05-19 20.319 Sig Added
2022-05-16 20.316 Default_action:pass:drop
2022-05-10 20.313