CVE-2021-45468

Published: Jan 14, 2022Modified: Nov 21, 2024

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

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.

Affected (1)

Products: Imperva: Web Application Firewall

Imperva

1 product

Web Application Firewall

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Imperva Web Application Firewall	Before 2021-12-23

Related CWEs

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

References (2)

https://bishopfox.com/blog/imperva-eliminates-critical-exposure

Source: cve@mitre.org

ExploitThird Party Advisory

https://bishopfox.com/blog/imperva-eliminates-critical-exposure

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

Timeline

No history available yet.