Bypassing 403

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Risk:
Medium

Type:
Active

Summary: Bypassing 403 endpoints may be possible, the scan rule sent a payload that caused the response to be accessible (status code 200).

References

https://www.acunetix.com/blog/articles/a-fresh-look-on-reverse-proxy-related-attacks/

https://i.blackhat.com/us-18/Wed-August-8/us-18-Orange-Tsai-Breaking-Parser-Logic-Take-Your-Path-Normalization-Off-And-Pop-0days-Out-2.pdf

https://www.contextis.com/en/blog/server-technologies-reverse-proxy-bypass

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