For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

smalex's avatar
smalex
Icon for Altostratus rankAltostratus
Jul 17, 2019

Content-length Detected as 0; False detection ASM

There are many blocks that I can see for reason 'post request with content-length 0' but those are genuine requests. What could cause this false detection? Please guide      
application delivery
ASM Advanced WAF
security
smalex's avatar
smalex
Icon for Altostratus rankAltostratus
Jul 21, 2019

Dear Boneyard,

 

I did see that content-length as 0 but that is not the case. User is sending form data. My query is whether there can be anything in the app or something that can make ASM detect the content as 0...

boneyard's avatar
boneyard
Icon for MVP rankMVP
Jul 21, 2019

the user might be sending data but that is not the case in this request.

 

it might have been another request.

 

i would focus on making sure you are looking at the right information instead of assuming the ASM does something wrong here.