We are rolling out improvements to the security posture of all applications within WAF-as-a-Service in order to provide better protection against the Spring4Shell framework vulnerabilities (CVE-2022-22963 and CVE-2022-22965).

If for some reason you encounter false positives, you can disable this protection with the following:

  1. Deleting/Disabling the spring4shell_protection Header ADR

  2. Disabling OS Injection in Parameter Protection

For any additional help, please contact Barracuda Support.