GHSA-923w-2xv2-7pr8

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    GHSA-923w-2xv2-7pr8

    Published: 13 May 2022Last Modified: 25 Apr 2024
    Aliases:
    CVE-2018-7644

    Summary: SimpleSAMLphp Improper Verification of Cryptographic Signature

    Details: The XmlSecLibs library as used in the saml2 library in SimpleSAMLphp before 1.15.3 incorrectly verifies signatures on SAML assertions, allowing a remote attacker to construct a crafted SAML assertion on behalf of an Identity Provider that would pass as cryptographically valid, thereby allowing them to impersonate a user from that Identity Provider, aka a key confusion issue.

    References: https://nvd.nist.gov/vuln/detail/CVE-2018-7644, https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/saml2/CVE-2018-7644.yaml, https://github.com/simplesamlphp/simplesamlphp, https://simplesamlphp.org/security/201802-01

    Affected packages

    Package

    Name: simplesamlphp/saml2

    Purl: pkg:composer/simplesamlphp/saml2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.10.5

    Affected versions

    v0.1.0
    v0.1.0-alpha

    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