Check Point Advisories

Samba nmbd unstrcpy Buffer Overflow (CVE-2014-3560)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1796
Date Published:	8 Sep 2014
Severity:	Critical
Last Updated:	Tuesday 08 December, 2015
Source:	Samba Team
Industry Reference:	CVE-2014-3560
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Samba Team Samba 4.0.0 to 4.1.10
Vulnerability Description	A buffer overflow vulnerability has been reported in Samba server. The vulnerability is due to using incorrect buffer size in a string copy operation in the nmbd daemon. A remote, unauthenticated attacker could exploit this vulnerability by sending malicious packets to a vulnerable nmbd service.

Protection Overview

This protection will detect and block 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 Samba nmbd unstrcpy Buffer Overflow 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: Windows SMB Protection Violation.
Attack Information: Samba nmbd unstrcpy Buffer Overflow