F5 is upgrading its customer support chat feature on My.F5.com. Chat support will be unavailable from 6am-10am PST on 1/20/26. Refer to K000159584 for details.

Forum Discussion

Subrun's avatar
Subrun
Icon for Cirrostratus rankCirrostratus
Nov 07, 2019

Legitimate Traffic is Blocked at ASM Policy

Certain good traffic is blocked at ASM Policy. From the event Log i see as HTTP protocol compliance failed , due to HTTP Validation tagged with " Null in request" .   HTTP POST shows %00 ( Bo...
application delivery
ASM Advanced WAF
BIG-IP
Null in Action
security
Subrun's avatar
Subrun
Icon for Cirrostratus rankCirrostratus
Nov 08, 2019

I see that for "File Upload" Option there is no Attack Signature Option I can select. Images attached.

 

 

Subrun's avatar
Subrun
Icon for Cirrostratus rankCirrostratus
Nov 08, 2019

Only for Alpha-Numeric it shows Attack Signature tab. Image attached