Anyone know what a TS# cookie is and what kind of data its for?

Question

Been doing a cookie audit on our websites, then came across TS# cookie. There seems to be no description of it nor what it does. Any ideas?

Based on this source (https://wienerberger.com/en/cookie-information), it increases security, if so, how?

Answer 1

It can be from the F5 load balancer.

The ASM cookie prefix string has a default value of TS.

https://support.f5.com/csp/article/K54501322

The BIG-IP ASM system sets various types of cookies to enforce elements in the security policy:

• ASM Main cookie
• ASM Feature cookies
• ASM Frame 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. Prior to 11.4.0, the BIG-IP ASM system signs each cookie with an MD5 digest signature, which is verified upon return against a stored message key.

https://support.f5.com/csp/article/K6850