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Category:   Device (Embedded Server/Appliance)  >   Cisco Email Security Appliance Vendors:   Cisco
Cisco Email Security Appliance MIME Header Error Handling Flaws Let Remote Users Bypass Security Restrictions on the Target System
SecurityTracker Alert ID:  1037307
SecurityTracker URL:
CVE Reference:   CVE-2016-6462   (Links to External Site)
Date:  Nov 17 2016
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in Cisco Email Security Appliance. A remote user can bypass security controls on the target system.

A remote user can send an email attachment with specially crafted Multipurpose Internet Mail Extensions (MIME) headers to bypass the configured Advanced Malware Protection (AMP) filters.

The vendor has assigned bug IDs CSCva13456 [CVE-2016-6462] and CSCuz85823 [CVE-2016-6463] to these vulnerabilities.

Impact:   A remote user can bypass the configured AMP filters on the target system.
Solution:   The vendor has issued a fix (9.7.2-131, 10.0.0-203).

The vendor advisories are available at:

Vendor URL: (Links to External Site)
Cause:   Exception handling error

Message History:   None.

 Source Message Contents

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