The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3979 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3979-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Guilhem Moulin     November 30, 2024                             https://wiki.debian.org/LTS
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    Package        : lemonldap-ng     Version        : 2.0.11+ds-4+deb11u6     CVE ID         : CVE-2024-48933 CVE-2024-52946 CVE-2024-52947     Debian Bug     : 1084979

    Multiple vulnerabilities were discovered in Lemonldap::NG, an     OpenID-Connect, CAS and SAML compatible Web-SSO system, which could lead     to injection of arbitrary scripts or authorization bypass.

    CVE-2024-48933

        Cross-site scripting (XSS) vulnerability which allows remote         attackers to inject arbitrary web script or HTML into the login page         via a username if userControl has been set to a non-default value         that allows special HTML characters.

    CVE-2024-52946

        Improper Check during session refresh which allows an authenticated         user to raise their authentication level if the admin configured an         Adaptative authentication rule with an increment instead of an         absolute value.

    CVE-2024-52947

        Cross-site scripting (XSS) vulnerability which allows remote         attackers to inject arbitrary web script or HTML via the url         parameter of the upgrade session confirmation page (upgradeSession)         if the Upgrade session plugin has been enabled by an admin.

    For Debian 11 bullseye, these problems have been fixed in version     2.0.11+ds-4+deb11u6.

    We recommend that you upgrade your lemonldap-ng packages.

    For the detailed security status of lemonldap-ng please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/lemonldap-ng

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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Debian dla-3979 : lemonldap-ng - security update

medium Nessus Plugin ID 211976

Version 1.1