CVE-2024-11584: cloud-init Permission Flaw — Fix

Description

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.

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CVSS v3.1 Score

5.9

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-732 CWE-732

Affected Products

Vendor	Product	Versions
canonical	cloud-init	< 25.1.3

References

Advisories & Patches

https://github.com/canonical/cloud-init/pull/6265/commits/6e10240a7f0a2d6110b398640b3fd46cfa9a7cf3

Other References

https://github.com/canonical/cloud-init/releases/tag/25.1.3

Frequently Asked Questions

What is CVE-2024-11584? +

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. It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2024-11584? +

CVE-2024-11584 has a CVSS v3.1 score of 5.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-11584? +

CVE-2024-11584 affects products from canonical, specifically: cloud-init. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-11584? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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