Check Point Advisories

Internet Explorer US-ASCII Charset Obfuscation (CVE-2006-3227)

Check Point Reference: SBP-2010-09
Date Published: 27 Jan 2010
Severity: Low
Last Updated: 18 Dec 2017
Source:
Industry Reference:CVE-2006-3227
Protection Provided by:

Security Gateway
R80, R77, R76, R75, R71, R70

Who is Vulnerable?
Vulnerability Description Although various security products provide coverage against many web vulnerabilities, these known exploits could potentially bypass security products by using US-ASCII charset obfuscation techniques.Microsoft Internet Explorer contains a flaw related to the encoding Internet transmitted content into ASCII that may allow an attacker to bypass such security filters.

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 / R76 / R75 / R71 / R70

  1. In the IPS tab, click Protections and find the Internet Explorer US-ASCII Charset Obfuscation protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation
Attack Information:  Internet Explorer US-ASCII charset obfuscation

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