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    CVE-2018-7711

    HTTPRedirect.php in the saml2 library in SimpleSAMLphp before 1.15.4 has an incorrect check of return values in the signature validation utilities, allowing an attacker to get invalid signatures accepted as valid by forcing an error during validation. This occurs because of a dependency on PHP functionality that interprets a -1 error code as a true boolean value.

    Published:Mar 5, 2018
    Last Modified:Nov 21, 2024
    EPS:Mar 5, 2018
    EPSS Score:0.0022
    CVSS Score:8.1

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Simplesamlphp
    Product
    Saml2
    Vendor
    Simplesamlphp
    Product
    Simplesamlphp

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

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    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