Check Point Advisories

NTP Kiss-o-Death Packet Denial of Service - Ver2 (CVE-2015-7704)

Vulnerability
Protection

Check Point Reference:	CPAI-2018-0740
Date Published:	25 Jun 2018
Severity:	Medium
Last Updated:	Sunday 05 August, 2018
Source:
Industry Reference:	CVE-2015-7704
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	NTP 4.2.7 Patch 324 NTP 4.2.7 Patch 329 NTP 4.2.7 Patch 327 NTP 4.2.5 Patch 244 Release Candidate 1 NTP 4.2.7 Patch 328 NTP 4.2.7 Patch 321 NTP 4.2.7 Patch 322 NTP 4.2.7 Patch 320 NTP 4.2.7 Patch 325 NTP 4.2.7 Patch 326
Vulnerability Description	A denial-of-service vulnerability exists in NTP Patch. Successful exploitation of this vulnerability could allow an attacker to create a denial of service condition on the affected system.

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 NTP Kiss-o-Death Packet Denial of Service - Ver2 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: NTP Kiss-o-Death Packet Denial of Service - Ver2