// For flags

CVE-2021-45468

 

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Imperva Web Application Firewall (WAF) versiones anteriores a 31-12-2021 permite a atacantes remotos no autenticados usar "Content-Encoding: gzip" para omitir los controles de seguridad del WAF y enviar peticiones HTTP POST maliciosas a servidores web detrás del WAF

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-12-23 CVE Reserved
  • 2022-01-14 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2024-10-25 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CAPEC
References (1)
URL Tag Source
URL Date SRC
https://bishopfox.com/blog/imperva-eliminates-critical-exposure 2024-08-04
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Imperva
Search vendor "Imperva"
 Web Application Firewall
Search vendor "Imperva" for product "Web Application Firewall"
 < 2021-12-23
Search vendor "Imperva" for product "Web Application Firewall" and version " < 2021-12-23"
-
Affected