Dicar Networks 97 East Brokaw Road Suite #230 San Jose, CA 95112 http://www.dicarnetworks.com/ THE DYNAMIC PROCESS OF NETWORK SECURITY by Vlad Sharoiko
Network security is a dynamic process because of
new threats and vulnerabilities that are uncovered every day. Your software may be secure today, but
intense pace of upgrades will continue to create
openings for new issues to arise. According to statistics released by
CERT Coordination Center, more than 300 vulnerabilities are reported every month. The process of discovering them, determining
potential security risk, and recommending fixes is called a Vulnerability Assessment.
A Network Vulnerability Assessment can:
Identify any potential security breaches a hacker could exploit
Analyze discovered vulnerabilities existing in
network
Provide a detailed explanation of
recommended fix for each threat
Despite
fact that most security measures are put in place to protect a network from
malicious outside world, many intrusion attempts are now happening from inside
organization. With
proliferation of laptops and handhelds,
possibility of an internal intrusion has greatly increased. For this reason, a complete assessment should be done with scanners located inside and outside
network to determine if potential issues exist in either place.
In addition,
reports generated should be structured for 2 levels of review. The Executive Report should represent a high level overview of
number of vulnerabilities detected, while
IT Department should receive a highly detailed report containing descriptions of each vulnerability and explanations of
fixes recommended for each one.
The key features of a Vulnerability Assessment are:
Automated scanning of internal and external network devices Scan schedules customized to times of least activity on
network Full SSL support to scan SSLized services such as https, smtps, & imaps Smart service recognition to detect services moved to non-standard ports Non-destructive scanning to avoid interruption of normal network activity Complete reporting designed for 2 levels of review