CVE-2023-4612

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    CVE-2023-4612

    Published: 9 Nov 2023Last Modified: 27 Aug 2026

    Summary: MFA bypass in Apereo CAS

    Details: Improper Authentication vulnerability in Apereo CAS in jakarta.servlet.http.HttpServletRequest.getRemoteAddr method allows Multi-Factor Authentication bypass.This issue affects CAS: through 7.0.0-RC7. It is unknown whether in new versions the issue will be fixed. For the date of publication there is no patch, and the vendor does not treat it as a vulnerability.

    References: https://www.apereo.org/projects/cas, https://cert.pl/en/posts/2023/11/CVE-2023-4612/, https://cert.pl/posts/2023/11/CVE-2023-4612/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4612.json, https://nvd.nist.gov/vuln/detail/CVE-2023-4612

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -b1e65f89a4854e3690b68a52b0589ecbbbb1eb3f

    Affected versions

    7.0.0-rc1
    7.0.0-rc2
    7.0.0-rc3
    7.0.0-rc4
    7.0.0-rc5
    7.0.0-rc6
    7.0.0-rc7

    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
    CVE-2023-4612 | CVE-DB