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

Forum Discussion

kaoutar's avatar
kaoutar
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Dec 28, 2020

TSURLCK_test cookie

Dear All,   please can you explain to me what the "TSURLCK_test" cookie means, when i scanned my web app, it reveals that this cookie is present in additions to those ASM main and frame cookie TS...
ASM Advanced WAF
security
jaikumar_f5's avatar
jaikumar_f5
Icon for Noctilucent rankNoctilucent
Dec 29, 2020

_test, this looks to be something manually inserted. If web app can be accessed directly bypassing the VS, try it and see if the cookie present, this should confirm who is inserting it. Or you can take the long route to check your VS setup Irules and profiles.

kaoutar's avatar
kaoutar
Icon for Cirrus rankCirrus
Dec 29, 2020

thank you for your reply