Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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Daisuke_Kishimo's avatar
Daisuke_Kishimo
Icon for Nimbostratus rankNimbostratus
Mar 12, 2007

I want to evaluate character string of Cookie by a hex digit.

Hello all.   I'm Japanese.I am weak in English.   But I do my best.       I want to evaluate character string of Cookie by a hex digit.   This cookie is "EX=......" by random of hex ...
application delivery
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devops
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AaronJB's avatar
AaronJB
Ret. Employee
Mar 12, 2007
What you need there is the 'scan' command, http://tmml.sourceforge.net/doc/tcl/scan.html , and I believe you'd want something like this:

when HTTP_REQUEST {
  if { [HTTP::header exist "cookie"] }{
    scan [HTTP::cookie "cookie"] "EX%2x" cookieval
    if { $cookieval <= 15 } {
      use pool_1
    } elseif { $cookieval > 15 ....

Hope that helps,

Aaron