Cisco Cisco Email Security Appliance X1050 Manual Técnica

Descargar
Página de 1
Contents
Introduction
Requirements
Change in URL Reputation Scoring
Updated Scoring Ranges
Related Information
Introduction
This document describes the change on the  to the Web Based Reputation System (WBRS)
scoring range associated with URL Filtering for "Suspect", now considered "Neutral."
Requirements
The ESA needs to be running AsyncOS for Email Security version 8.5, or newer, with URL
Filtering enabled and a content filter acting on "Suspect" URL scores.  Starting with AsyncOS 9.7
for Email Security, the scoring ranges are re-categorized, and will no longer carry "Suspect".
Change in URL Reputation Scoring
The Cisco Security Application Team has updated the URL Filtering score range previously used
for "Suspect" scores of -5.9 to 5.9.  A re-categorized scoring range of "Neutral" now scores
reputations of -5.9 to 5.9.  A neutral score does not indicate consideration that a URL or domain
would be malicious, or possibly malicious.
URLs that were formerly labeled “Suspicious” are now labeled “Neutral.” Only the labeling has
changed; the underlying logic and processing have not changed.
Updated Scoring Ranges
The current scoring ranges for the WBRS system are considered in the following ranges:
Malicious -10.0 to -6.0
Neutral
-5.9 to 5.9
Clean
6.0 to 10 
Related Information