Check Point Advisories

Red Hat NetworkManager DHCP Command Injection (CVE-2018-1111)

Vulnerability
Protection

Check Point Reference:	CPAI-2019-0035
Date Published:	14 Jan 2019
Severity:	Critical
Last Updated:	Wednesday 28 August, 2019
Source:	Red Hat 1578362
Industry Reference:	CVE-2018-1111
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Red Hat RPM resource prior to dhcp-4.3.6-10.fc27 Red Hat RPM resource prior to dhcp-4.3.6-20.fc28
Vulnerability Description	A command injection vulnerability has been reported in the Red Hat Network Manager. This vulnerability is due to improper validation of DHCP responses by Network Manager scripts. A remote attacker could exploit this vulnerability by sending malicious DHCP responses to a vulnerable target.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Red Hat NetworkManager DHCP Command Injection protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: DHCP Protection Violation.
Attack Information: Red Hat NetworkManager DHCP Command Injection