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    CVE-2023-28862

    An issue was discovered in LemonLDAP::NG before 2.16.1. Weak session ID generation in the AuthBasic handler and incorrect failure handling during a password check allow attackers to bypass 2FA verification. Any plugin that tries to deny session creation after the store step does not deny an AuthBasic session.

    Published:Mar 31, 2023
    Last Modified:Feb 14, 2025
    EPS:Mar 31, 2023
    EPSS Score:0.00042
    CVSS Score:9.8

    Affected Products

    Vendor
    Lemonldap-ng
    Product
    Lemonldap\

    Exploits

    https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2896https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2896

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

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    CVE-2023-44469 (CVSS 4.3) — A Server-Side Request Forgery issue in the OpenID Connect Issuer in LemonLDAP::NG before 2.17.1 allows authent…
    CVE-2019-19791 (CVSS 9.8) — In LemonLDAP::NG (aka lemonldap-ng) before 2.0.7, the default Apache HTTP Server configuration does not proper…
    CVE-2022-37186 (CVSS 5.9) — In LemonLDAP::NG before 2.0.15. some sessions are not deleted when they are supposed to be deleted according t…
    CVE-2021-40874 (CVSS 9.8) — An issue was discovered in LemonLDAP::NG (aka lemonldap-ng) 2.0.13. When using the RESTServer plug-in to opera…
    CVE-2020-16093 (CVSS 7.5) — In LemonLDAP::NG (aka lemonldap-ng) through 2.0.8, validity of the X.509 certificate is not checked by default…
    CVE-2021-35472 (CVSS 8.8) — An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization byp…
    CVE-2020-24660 (CVSS 9.8) — An issue was discovered in LemonLDAP::NG through 2.0.8, when NGINX is used. An attacker may bypass URL-based a…
    CVE-2019-15941 (CVSS 9.8) — OpenID Connect Issuer in LemonLDAP::NG 2.x through 2.0.5 may allow an attacker to bypass access control rules …

    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