Cisco Email Security Appliance .zip File Scanning Security Bypass Vulnerability

A vulnerability in the anti-spam filter of the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass anti-spam filtering functionality on an affected system.
 
The vulnerability is due to improper handling of content in .zip files. An attacker could exploit this vulnerability by sending a malicious .zip file that contains embedded executable content, which could be used to cause additional harm to the system.

Cisco has not released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.

This advisory is available at the following link: http://ift.tt/28PtGyr A vulnerability in the anti-spam filter of the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass anti-spam filtering functionality on an affected system.
 
The vulnerability is due to improper handling of content in .zip files. An attacker could exploit this vulnerability by sending a malicious .zip file that contains embedded executable content, which could be used to cause additional harm to the system.

Cisco has not released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.

This advisory is available at the following link: http://ift.tt/28PtGyr
Security Impact Rating: Medium
CVE: CVE-2016-1438

from Cisco Security Advisory http://ift.tt/28PtGyr