Hi Dat,
I'm facing the same issue....there is a kind of WA:
My suggestion is to increase the buffer size to 4mb, if its ill occur so to 8mb with the following instructions:
4mb:
Navigate to the /opt/SecureSphere/etc/hades.cfg.template in the gateway CLI and edit values as shown:
vrange_block_size: 4186112
vrange_blocks_num: [1GB] 20000 [2GB] 40000 [4GB] 80000 [7GB] 150000 [8GB] 150000 [12GB] 75000 [16GB] 150000 [32GB] 150000 [64GB] 150000 [128GB] 200000
For 8mb:
vrange_block_size: 8372224
vrange_blocks_num: [1GB] 20000 [2GB] 40000 [4GB] 80000 [7GB] 150000 [8GB] 150000 [12GB] 37500 [16GB] 150000 [32GB] 150000 [64GB] 150000 [128GB] 200000
Please try first the 4mb option.
Using this WA you will use a bigger buffer so you could face delay or memory issues if you set the buffer too big.
Another important point is that the 14.x use a different way to handle request respect KRP, if you fall in that mode you should check very carefully your environment before update it in order to avoid performance issue.
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Francesco Zuliani
Security Engineer
Rome
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Original Message:
Sent: 03-22-2021 05:42
From: Anat Zadik (csp)
Subject: Cannot request with content length >2MB
We have made many improvements in the area of posts larger than 2MB. The improvements include behavioural changes in RP mode.
I strongly recommend upgrading your GW version in this case.
Recommended versions are the latest - v13.6P51 or v14.3P20
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Anat Zadik (csp)
Engineering Manager
Tel Aviv CA
Original Message:
Sent: 03-22-2021 05:17
From: dat lyoko1412
Subject: Cannot request with content length >2MB
Hi Anat
I used GW mode: Reverse Proxy
Best regards,
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dat lyoko1412
Original Message:
Sent: 03-21-2021 04:06
From: Anat Zadik (csp)
Subject: Cannot request with content length >2MB
What GW mode are you using?
I see you are using a very old version for GW.
You should upgrade to v13.6.0.51 or v14.3 to receive some behavioural changes done in the area of very large posts.
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Anat Zadik (csp)
Engineering Manager
Tel Aviv CA
Original Message:
Sent: 03-18-2021 23:18
From: dat lyoko1412
Subject: Cannot request with content length >2MB
Dear team,
I disabled Extremely Long HTTP Request, I send request with content length of body >2MB, that seem imperva could not handle and not forward to backend so I could not receive response.
Can I set more value of maximum content length ?
Version: 13.5.0.20
Thanks,
Best regards,
#AllImperva
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dat lyoko1412
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