Atomicorp.com WAF Rules: Invalid character in ARGS
This rule checks for the NULL character in any Argument or Argument name, except in special cases where it is known that this will occur safely. NULLs can be used to bypass certain security checks and are often used as part of evasion attacks on web application firewalls.
This can be triggered if an application legitimately uses a NULL in an Argument.
This can be triggered if an application use a NULL as part of an argument name. It is not expected that any application would use a NULL legitimately in an Argument Name.
If you believe this is a False Positive, it recommended that you report this as a false positive so our security team can determine if this is a legitimate case, or if its clever attack on your systems. Instructions to report false positives are detailed on the Reporting False Positives wiki page.