Check Point Advisories

ESTsoft ALZip MIM File Buffer Overflow (CVE-2011-1336)

Check Point Reference: CPAI-2011-441
Date Published: 27 Sep 2011
Severity: Medium
Last Updated: Wednesday 06 August, 2014
Source:
Industry Reference:CVE-2011-1336
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable?
Vulnerability Description A remote code execution vulnerability has been reported in ESTsoft's ALZip. The vulnerability is due to an error while parsing MIME files. A remote attacker may exploit this vulnerability by sending a specially crafted .mim file to an affected user. Successful exploitation of this vulnerability will allow an attacker to take complete control of the affected system.

Protection Overview

This protection will detect and block the transferring of malicious MIME files over SMTP.

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 ESTsoft ALZip MIM File Buffer Overflow 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:  Content Protection Violation.
Attack Information:  ESTsoft ALZip MIM file buffer overflow

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