Forum Discussion

smalex's avatar
smalex
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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
Domai's avatar
Domai
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Yes so ASM treats this as a - HTTP Parser Attack, because the content length should be a positive number. If there are valid requests then disable - Content length should be a positive number under - HTTP protocol compliance.

smalex's avatar
smalex
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Jul 17, 2019

We would not want to disable this check. I would like to know reason why it is detected as content 0 when it is actually not. It is a registration page and even when all fields are filled, page is detected as content 0.