CVE-2021-45468

Public Exploit

Description

Imperva Web Application Firewall (WAF) before 2021-12-23 allows remote unauthenticated attackers to use "Content-Encoding: gzip" to evade WAF security controls and send malicious HTTP POST requests to web servers behind the WAF.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 15.93% Top 10%
Third-Party Advisory bishopfox.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bishopfox.com/blog/imperva-eliminates-critical-exposure third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-45468?
CVE-2021-45468 has been scored as a critical severity vulnerability.
How to fix CVE-2021-45468?
To fix CVE-2021-45468, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-45468 being actively exploited in the wild?
It is possible that CVE-2021-45468 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~16% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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