Bug ID 1971217: False negative with illegal redirect attempt

Last Modified: Sep 10, 2025

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:
17.5.0, 17.5.1

Opened: Jun 24, 2025

Severity: 3-Major

Symptoms

ASM does not block illegal redirect attempt in a certain scenario

Impact

False negative.

Conditions

Occurs with a specific configuration on ASM and a specific server redirect response .

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips