How to find your security holes
Check your network for CVEs
Op-ed
By Gary S. Miliefsky
,
Network World
, 04/30/2007
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Exploiters on the Internet have caused billions of dollars in damages. These exploiters are intelligent cyber terrorists,
criminals and hackers who have a plethora of tools available in their war chests ranging from spyware, rootkits, Trojans,
viruses, worms, bots, and zombies to various other blended threats.
Exploits can be grown and harvested the same day a security hole is announced - in so-called "zero-day attacks" - so they
are getting much harder to stop. Open source malware code, freely available on the Internet, is enabling this phenomenon and
cannot be reversed. Although the number and types of exploits "in the wild" continues to rise exponentially, there are fewer
than a dozen core methodologies used for their execution and proliferation. Most exploits can be removed, but some exist indefinitely
and can only be destroyed or removed by loss of data - you've probably heard of these "rootkits." Most exploits will re-infect
a host if a security hole, also known as the Common Vulnerability and Exposure (CVE), is not removed.
Many exploiters are doing it for profit. Just take a look here and you'll see where the $10 billion in identity theft last year occurred the most.
Not all exploits are created equal. Most are evolutionary improvements on existing exploits. What’s very interesting is that
the average exploit currently has a dozen names. With the advent of the Common Malware Enumeration (CME) standard, there will be one shared, neutral indexing capability for malware but that will take years - probably more than
five years, like the CVE standard which is still just starting to catch on, since its inception in 1999 by Mitre, now funded
by the U.S. Department of Homeland Security.
It is crucial today to prevent vulnerabilities across the enterprise and remove these CVEs - these security holes in your
desktops, laptops and servers. Knowing what they are, where they are on your network, and how to remove them is more important
than sniffing packets and listening for burglars.
According to USCERT, 95% of downtime and IT related compliance issues are a direct result of an exploit against a CVE. Your
firewall, IDS, IPS, anti-virus software and other countermeasures don’t look for or show you how to remove your CVEs. So you
are really only 5% secure.
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