CVE-2024-9050 Networkmanager-libreswan: local privilege escalation via leftupdown
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.
CVSS 3.1 detail
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitable with local access to the machine, with an ordinary account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 7.7 Advanced Update Support | Versions not published | |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | Versions not published | |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | Versions not published | |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | Versions not published | |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | Versions not published | |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | Versions not published | |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | Versions not published |
Show the 7 other branches Hide the 7 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | Versions not published | |
| Red Hat Enterprise Linux 8.8 Extended Update Support | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | Versions not published | |
| Red Hat Enterprise Linux 9.2 Extended Update Support | Versions not published | |
| Red Hat Enterprise Linux 9.4 Extended Update Support | Versions not published | |
| Red Hat Enterprise Linux 10 | Versions not published |
References
- RHSA-2024:8312 access.redhat.com
- RHSA-2024:8338 access.redhat.com
- RHSA-2024:8352 access.redhat.com
- RHSA-2024:8353 access.redhat.com
- RHSA-2024:8354 access.redhat.com
- RHSA-2024:8355 access.redhat.com
- RHSA-2024:8356 access.redhat.com
- RHSA-2024:8357 access.redhat.com
- RHSA-2024:8358 access.redhat.com
- RHSA-2024:9555 access.redhat.com
- RHSA-2024:9556 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2313828 bugzilla.redhat.com
- gitlab.gnome.org gitlab.gnome.org
- www.openwall.com www.openwall.com
Timeline
- Published
- Last modified