MGASA-2024-0356 - Updated networkmanager-libreswan packages fix security vulnerability

Publication date: 12 Nov 2024
URL: https://advisories.mageia.org/MGASA-2024-0356.html
Type: security
Affected Mageia releases: 9
CVE: 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.
(CVE-2024-9050)

References:
- https://bugs.mageia.org/show_bug.cgi?id=33709
- https://www.openwall.com/lists/oss-security/2024/10/25/1
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-9050

SRPMS:
- 9/core/networkmanager-libreswan-1.2.24-1.mga9

Mageia 2024-0356: networkmanager-libreswan Security Advisory Updates

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 unprivilege...

Summary

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. (CVE-2024-9050)

References

- https://bugs.mageia.org/show_bug.cgi?id=33709

- https://www.openwall.com/lists/oss-security/2024/10/25/1

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-9050

Resolution

MGASA-2024-0356 - Updated networkmanager-libreswan packages fix security vulnerability

SRPMS

- 9/core/networkmanager-libreswan-1.2.24-1.mga9

Severity
Publication date: 12 Nov 2024
URL: https://advisories.mageia.org/MGASA-2024-0356.html
Type: security
CVE: CVE-2024-9050

Related News