---
id: 4034
title: "Zero-Day Collaboration: Working With Imperva to Eliminate a Critical Exposure"
source_domain: bishopfox.com
source_url: "https://bishopfox.com/blog/imperva-eliminates-critical-exposure"
published_at: "2022-01-11T00:00:00Z"
tags: ["cloud", "zero-day", "vulnerability", "log4j", "responsible-disclosure", "waf-bypass", "imperva"]
phying_url: "https://phying.com/item/4034"
lang: en
---

# Zero-Day Collaboration: Working With Imperva to Eliminate a Critical Exposure

## Summary

Bishop Fox found a WAF bypass in Imperva's Cloud WAF letting attackers evade rules with malicious POST payloads such as Log4j exploits and SQL injection; Imperva patched within days.

## Intelligence Metadata

- **Sources:** bishopfox.com
- **Published:** 2022-01-11T00:00:00Z
- **Original:** https://bishopfox.com/blog/imperva-eliminates-critical-exposure
- **Phying News:** https://phying.com/item/4034