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    CVE-2021-45468

    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.

    Published:Jan 14, 2022
    Last Modified:Nov 21, 2024
    EPS:Jan 14, 2022
    EPSS Score:0.36095
    CVSS Score:9.8

    Affected Products

    Vendor
    Imperva
    Product
    Web Application Firewall

    Exploits

    https://bishopfox.com/blog/imperva-eliminates-critical-exposurehttps://bishopfox.com/blog/imperva-eliminates-critical-exposurehttps://github.com/0xhaggis/Imperva_gzip_bypass

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-273 HTTP Response Smuggling
    CAPEC-33 HTTP Request Smuggling

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High