19-Jan-2023
03:59
- last edited on
21-Jan-2023
23:36
by
boneyard
Hello,
I have an issue with my ASM, i am not able to open a pdf file when using F5 under F5 even if is legal request :
Please, any idea about this issue ?
19-Jan-2023 05:06
Hi
in my case
abnomal http protocol.
if you can check the content length, Because Web Firewall solutions view content sizes, signatures are detected when data sizes are different.
19-Jan-2023 06:15
Hi @Hooni_L ,
Thanks
Please note that i have fotgate FW, and test is done without F5.
So FW has not impact.
19-Jan-2023 07:17
Hi @Hamza ,
Try to disable ASM policy first from your Virtual server and see if this fixed this issue or not ,
-if yes you should see what makes ASM to block opening or downloading PDF files requests ,
-If not you should disable http profile from your virtual server and change virtual server type from standard to performance layer 4 " If this available with you and this web site does not serve production services now " , if this issue resolved , I recommend to disable http parsing against PDF files as clarified in the below KB :
https://support.f5.com/csp/article/K00445006
but first differentiate if this an ASM issue or not.
I hope this helps you
23-Jan-2023 06:10
Thanks.
For ASM I am using the policy with transparent mode.
For http profile, i have already applicate the irule mentioned in the below KB :
https://support.f5.com/csp/article/K00445006