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Medium ALAS2-2024-2703 1 CVE

Moderate: NetworkManager-libreswan security update (Amazon Linux 2)

Published Dec 5, 2024 · Updated Dec 19, 2024

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2024-9050: A flaw was found in the libreswan client plugin for NetworkManager (NetkworkManager-libreswan), where it fails to properly sanitize the VPN configuration from the local unprivileged user. In this configuration, composed by a key-value format, the plugin fails to escape special characters, leading the application to interpret values as keys. One of the most critical parameters that could be abused by a malicious user is the `leftupdown`key. This key takes an executable command as a value and is used to specify what executes as a callback in NetworkManager-libreswan to retrieve configuration settings back to NetworkManager. As NetworkManager uses Polkit to allow an unprivileged user to control the system's network configuration, a malicious actor could achieve local privilege escalation and potential code execution as root in the targeted machine by creating a malicious configuration.

Fixed packages 3

ReleasePackageFixed in
Amazon Linux · 2 NetworkManager-libreswan 0:1.2.4-4.amzn2
Amazon Linux · 2 NetworkManager-libreswan-debuginfo 0:1.2.4-4.amzn2
Amazon Linux · 2 NetworkManager-libreswan-gnome 0:1.2.4-4.amzn2

Vulnerabilities 1

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-9050.html