Check Point Advisories

NTPsec ntpd ctl_getitem Out of Bounds Read (CVE-2019-6443)

Vulnerability
Protection

Check Point Reference:	CPAI-2019-0256
Date Published:	24 Feb 2019
Severity:	High
Last Updated:	Sunday 03 March, 2019
Source:	NTPsec
Industry Reference:	CVE-2019-6443
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	NTPsec ntpd prior to 1.1.3
Vulnerability Description	An out of bounds read vulnerability has been reported in NTPsec ntpd. The vulnerability is due to insufficient validation of the length of a message in a NTP packet. A remote unauthenticated user can exploit this vulnerability by sending a crafted packet to the target server.

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 NTPsec ntpd ctl_getitem Out of Bounds Read 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: NTP Enforcement Violation.
Attack Information: NTPsec ntpd ctl_getitem Out of Bounds Read