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Check Point Advisories

Samba SMB1 message_push_string Information Disclosure (CVE-2017-15275)

Check Point Reference: CPAI-2018-0010
Date Published: 7 Jan 2018
Severity: Medium
Last Updated: 17 Jan 2018
Source: Samba
Industry Reference:CVE-2017-15275
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Samba Team Samba 3.6.0 to 4.5.14
Samba Team Samba 3.6.0 to 4.6.10
Samba Team Samba 3.6.0 to 4.7.2
Vulnerability Description An information disclosure vulnerability exists in the SMB1 component of Samba. The vulnerability is due to the inclusion of uninitialized memory in certain responses. A remote, authenticated attacker could exploit this vulnerability by sending maliciously crafted SMB1 commands to the target server. Successful exploitation could result in the disclosure of memory from the target 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

  1. In the IPS tab, click Protections and find the Samba SMB1 message_push_string Information Disclosure protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  MS-RPC Enforcement Violation.
Attack Information:  Samba SMB1 message_push_string Information Disclosure

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