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Vulnerability · Published Oct 22, 2024 · Assigned by redhat

CVE-2024-9050Networkmanager-libreswan: local privilege escalation via leftupdown

High 7.8

In plain English

A high-severity code injection in NetworkManager-libreswan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.5%top 60.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8NetworkManager-libreswan1.2.10-7.el8_10ALSA-2024:8353
AlmaLinux:9NetworkManager-libreswan1.2.22-4.el9_5ALSA-2024:9555
AlmaLinux:8NetworkManager-libreswan-gnome1.2.10-7.el8_10ALSA-2024:8353
AlmaLinux:9NetworkManager-libreswan-gnome1.2.22-4.el9_5ALSA-2024:9555
Rocky Linux:8NetworkManager-libreswan0:1.2.10-7.el8_10RLSA-2024:8353
Rocky Linux:9NetworkManager-libreswan0:1.2.22-4.el9_5RLSA-2024:9555

Affected products (as reported)

VendorProductVersions
NetworkManager-libreswan 0 – before 1.2.24
Red Hat Red Hat Enterprise Linux 7.7 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 10 see references

Weakness: CWE-94 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References