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    CVE-2020-27846

    A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

    Published:Dec 17, 2020
    Last Modified:Nov 21, 2024
    EPS:Dec 21, 2020
    EPSS Score:0.07052
    CVSS Score:9.8

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Grafana
    Product
    Grafana
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Openshift
    Vendor
    Redhat
    Product
    Openshift Container Platform
    Vendor
    Redhat
    Product
    Openshift Service Mesh
    Vendor
    Saml Project
    Product
    Saml

    Exploits

    https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/

    Common Weakness Enumeration

    CWE-115 Misinterpretation of Input

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://bugzilla.redhat.com/show_bug.cgi?id=1907670
    https://github.com/crewjam/saml/security/advisories/GHSA-4hq8-gmxx-h6w9
    https://grafana.com/blog/2020/12/17/grafana-6.7.5-7.2.3-and-7.3.6-released-with-important-security-fix-for-grafana-enterprise/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YUTKIRWT6TWU7DS6GF3EOANVQBFQZYI/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ICP3YRY2VUCNCF2VFUSK77ZMRIC77FEM/
    https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
    https://security.netapp.com/advisory/ntap-20210205-0002/
    https://bugzilla.redhat.com/show_bug.cgi?id=1907670
    https://github.com/crewjam/saml/security/advisories/GHSA-4hq8-gmxx-h6w9
    https://grafana.com/blog/2020/12/17/grafana-6.7.5-7.2.3-and-7.3.6-released-with-important-security-fix-for-grafana-enterprise/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YUTKIRWT6TWU7DS6GF3EOANVQBFQZYI/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ICP3YRY2VUCNCF2VFUSK77ZMRIC77FEM/
    https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
    https://security.netapp.com/advisory/ntap-20210205-0002/

    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