Product Vulnerability Related to IIS

Hi Team,

 

We are providing web-based solution build on F5 to our customers and recently we found vulnerabilities related to IIS, For now Product Development team dont have any feature from their end in IIS 6.0 ver and to fix this, we need to block the below content from HTTP_REQUEST

 

/portal/content/English%5Cgeneric%5Creplacevars.asp?file=.htm/../../../../../../../../GlobalSettings.xml

 

Can you please guide us with the Irule please which can allow all and block this exact extension.

 

Thanks and Regards PZ