Check Point Advisories

Samba LDAP AD DC Privilege Escalation (CVE-2018-1057)

Vulnerability
Protection

Check Point Reference:	CPAI-2019-0240
Date Published:	20 Feb 2019
Severity:	Medium
Last Updated:	Sunday 03 March, 2019
Source:	Samba
Industry Reference:	CVE-2018-1057
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Samba Team Samba 4.0.0 through 4.4.x Samba Team Samba 4.5.x prior to 4.5.16 Samba Team Samba 4.6.x prior to 4.6.14 Samba Team Samba 4.7.x prior to 4.7.6
Vulnerability Description	A privilege escalation vulnerability has been reported in the Samba. A remote attacker could exploit this vulnerability by sending crafted LDAP requests to the vulnerable service. Successful exploitation allows authenticated attackers to change other users passwords, including administrative users and privileged service accounts.

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 Samba LDAP AD DC Privilege Escalation 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: MS-RPC over CIFS Enforcement Violation.
Attack Information: Samba LDAP AD DC Privilege Escalation