Insufficient verification of data authenticity in cloud-init - CVE-2024-6174
Published: July 14, 2025
Vulnerability identifier: #VU112884
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2024-6174
CWE-ID: CWE-345
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Canonical Ltd.
Affected software:
cloud-init
cloud-init
Detailed vulnerability description
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists in the way the application identified the boot data source. An attacker can create a rogue service on the local network to impersonate an openstack endpoint and provide root-configuration data to cloud-init on instance launch leading to a security backdoor to root during system boot.
How to mitigate CVE-2024-6174
Install updates from vendor's website.