Detections
Analytics
CVE-2024-9050
high
Description
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.
References
https://www.openwall.com/lists/oss-security/2024/10/25/1
https://bugzilla.redhat.com/show_bug.cgi?id=2313828
https://access.redhat.com/security/cve/CVE-2024-9050
https://access.redhat.com/errata/RHSA-2024:9556
https://access.redhat.com/errata/RHSA-2024:9555
https://access.redhat.com/errata/RHSA-2024:8358
https://access.redhat.com/errata/RHSA-2024:8357
https://access.redhat.com/errata/RHSA-2024:8356
https://access.redhat.com/errata/RHSA-2024:8355
https://access.redhat.com/errata/RHSA-2024:8354
https://access.redhat.com/errata/RHSA-2024:8353
https://access.redhat.com/errata/RHSA-2024:8352
https://access.redhat.com/errata/RHSA-2024:8338