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    CVE-2019-11391

    An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with $a# at the beginning and nested repetition operators. NOTE: the software maintainer disputes that this is a vulnerability because the issue cannot be exploited via ModSecurity

    Published:Apr 21, 2019
    Last Modified:Nov 21, 2024
    EPS:Apr 21, 2019
    EPSS Score:0.00413
    CVSS Score:5.3

    Affected Products

    Vendor
    Modsecurity
    Product
    Owasp Modsecurity Core Rule Set

    Exploits

    https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1372https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1372

    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