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

The BIG-IP Application Security Manager Part 3: The Importance of File Types, Parameters, and URLs

This is the third article in a 10-part series on the BIG-IP Application Security Manager (ASM). The first two articles in this series are: What is the BIG-IP ASM? Policy Building This third ...
Published Sep 18, 2013
Version 1.0
ASM Advanced WAF
security
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Praveen_Kumar_K's avatar
Praveen_Kumar_K
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Mar 12, 2015
Hello John, Hope you are doing good. In our setup ASM is detecting illegal file type violation, Not sure how ASM detects file type i assume .filetype below url is detected with file type 0001, how to avoid this? its detecting many file types like 0002, 0003 , 0004 etc. I can add a wildcard with file type 000* , however i feel that should not be solution. /something/aggregators/get-quet.0001?cmpid=000