cloud-init through 25.1.2 includes the systemd socket unit cloud-init-hotplugd.socket with default SocketMode that grants 0666 permissions, making it world-writable. This is used for the "/run/cloud-init/hook-hotplug-cmd" FIFO. An unprivileged user could trigger hotplug-hook commands.

vendor_unpatched cve-2024-11584: Unpatched CVEs for Debian Linux, Ubuntu Linux (cve-2024-11584)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7677-1 advisory.

    Harry Sintonen discovered that the hotplugd socket in cloud-init was world writable. An attacker could     possibly use this issue to send hotplug-hook commands. (CVE-2024-11584)

    It was discovered that cloud-init granted root access to a hardcoded URL with a local IP address when a     non-x86 platform is detected. An attacker could possibly impersonate an OpenStack endpoint and provide     root configuration data. (CVE-2024-6174)

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

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

The remote Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-58f05c43ae advisory.

    Backport fixes for CVE-2024-6174 and CVE-2024-11584

    - cloud-init included the systemd socket unit cloud-init-hotplugd.socket with default SocketMode that     grants 0666 permissions, making it world-writable. An unprivelege user could trigger hotplug-hook commands     (CVE-2024-11584)

    - When a non-x86 platform is detected, cloud-init granted root access to a hardcoded url with a local IP     address. To prevent this, cloud-init default configurations disable platform enumeration (CVE-2024-6174)

    Note that the fix for CVE-2024-6174 includes a change that may break non-x86 OpenStack Nova users.
    Affected users may wish to use ConfigDrive as a workaround


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

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

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-b93ee7b368 advisory.

    Backport fixes for CVE-2024-6174 and CVE-2024-11584

    - cloud-init included the systemd socket unit cloud-init-hotplugd.socket with default SocketMode that     grants 0666 permissions, making it world-writable. An unprivelege user could trigger hotplug-hook commands     (CVE-2024-11584)

    - When a non-x86 platform is detected, cloud-init granted root access to a hardcoded url with a local IP     address. To prevent this, cloud-init default configurations disable platform enumeration (CVE-2024-6174)

    Note that the fix for CVE-2024-6174 includes a change that may break non-x86 OpenStack Nova users.
    Affected users may wish to use ConfigDrive as a workaround


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

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

The version of cloud-init installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-11584 advisory.

  - cloud-init through 25.1.2 includes the systemd socket unit cloud-init-hotplugd.socket with default     SocketMode that grants 0666 permissions, making it world-writable. This is used for the /run/cloud-     init/hook-hotplug-cmd FIFO. An unprivileged user could trigger hotplug-hook commands. (CVE-2024-11584)

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

The version of cloud-init installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-11584 advisory.

  - cloud-init through 25.1.2 includes the systemd socket unit cloud-init-hotplugd.socket with default     SocketMode that grants 0666 permissions, making it world-writable. This is used for the /run/cloud-     init/hook-hotplug-cmd FIFO. An unprivileged user could trigger hotplug-hook commands. (CVE-2024-11584)

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

ID	Name	Product	Family	Severity
243039	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 : cloud-init vulnerabilities (USN-7677-1)	Nessus	Ubuntu Local Security Checks	high
243014	Fedora 41 : cloud-init (2025-58f05c43ae)	Nessus	Fedora Local Security Checks	high
243013	Fedora 42 : cloud-init (2025-b93ee7b368)	Nessus	Fedora Local Security Checks	high
242160	Azure Linux 3.0 Security Update: cloud-init (CVE-2024-11584)	Nessus	Azure Linux Local Security Checks	medium
241896	CBL Mariner 2.0 Security Update: cloud-init (CVE-2024-11584)	Nessus	MarinerOS Local Security Checks	medium

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