Forum Discussion

Jacqueline's avatar
Jacqueline
Icon for Nimbostratus rankNimbostratus
Jan 09, 2020

What causes the TSbd/TSbp script to be inserted into the source code of a website?

In the source code of the website I work on I see that the script below is being inserted. <script type="text/javascript"> //<![CDATA[ window["_tsbp_"] = { ba : "X-TS-BP-Action", bh : "X-TS-AJAX-...
ASM Advanced WAF
javascript
script
security
TSbd
TSbp
NUT2889's avatar
NUT2889
Icon for Cirrostratus rankCirrostratus
Jan 13, 2020

Hi,

 

This is the machanism of ASM to validate cookie.

 

The BIG-IP ASM system validates these cookies returning from the clients to ensure that the cookies are not modified. In BIG-IP ASM 11.4.0 and later, a random security key is generated uniquely to each deployment and combined with a configurable encryption algorithm to provide a security context for cookie protection.

 

You can refer more detail over here https://support.f5.com/csp/article/K6850