Legitimate Traffic is Blocked at ASM Policy
Certain good traffic is blocked at ASM Policy. From the event Log i see as HTTP protocol compliance failed , due to HTTP Validation tagged with " Null in request" . HTTP POST shows %00 ( Bold Below ) about which it is mentioned here in this KB https://support.f5.com/csp/article/K7931. f=json&checksum=%EF%BF%BD%1D%EF%BF%BD%D9%8F%00%EF%BF%BD%04%EF%BF%BD%09%EF%BF%BD%EF%BF%BD%EF%BF%BDB%7E&parts=1 In K7931 it shows 3 ways how to prevent this but can some one help out of 3 ways which one I should use and why to prevent this Null in Request message ? Attached Event Log message.