Ivan Arce, chief technology officer of Core Security
Technologies in Boston, is a big proponent of penetration testing
as a way for companies to find and fix their vulnerabilities. In
fact, that's one of his company's main specialties. But what does
he think of
vulnerability disclosure in the public domain? Is he a fan of
all the
hacking contests and "month-of" flaw disclosure projects that
have dominated news headlines in recent months? Arce explains why
he thinks hacking contests and public vulnerability disclosure
projects do little to improve IT security.
![]() | ![]() | ![]() | ![]() | ![]() | The right thing to do is adopt a
scientific methodology for research, providing information that can
be tested and repeated by someone else ... Ivan Arce,
chief technology officer, Core Security
Technologies |
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Your main area of expertise is penetration testing. Talk about how
it might have saved companies like
TJX from the damaged reputation and cost suffered in the wake
of a big data breach.
Ivan Arce: I'm not familiar with the internal security process of
TJX, but in general, if you do penetration testing as a regular
part of the process and you act on the results, your security
posture will continue to improve over time. It might not prevent
incidents like what happened [to TJX], but it can help.
Based on your customers' use of Core's penetration testing
tools, what are the most common vulnerabilities that threaten
companies today?
Arce: It's definitely the client-side and application
vulnerabilities under the control of inexperienced or unaware
users. Browser bugs and email attacks are examples, where the user
clicks on a malicious URL. All it takes to break into an otherwise
secure network is for a user to click on a malicious email
attachment or visit a malicious Web site.
Is there any one browser that you see as more secure than
others?
Arce: You have to take the market share of each browser into
account. I personally don't use
Internet Explorer. I think it has evolved with a lot of
security improvements but it's still a very huge and complex
program with many different components that do a lot of different
things. But every browser nowadays will do things like that. But
obviously the attackers will go for the one with the largest market
share, which is Internet Explorer. So I try to stay away from
it.
Which browser do you use?
Arce: I use
Firefox, which is not secure either. It has its problems, but
every browser has problems. As long as you are aware and you
practice good [browsing habits] you're OK. I use the no-script
Firefox extension, which prevents Javascript and Java from
running.
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| Security audio download: | |
Security Wire Weekly -- May 16, 2007 Core Security's Ivan Arce
discusses the pros and cons of penetration testing, "month-of" flaw
disclosure projects and hacking
contests. |
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In a recent interview you talked about
how Microsoft is doing at cooperating with security researchers
who find zero-day flaws in their products. You said the company
isn't as transparent as some might think. Talk about what you mean
by that.
Arce: In general, my comments applied to most software vendors. Not
many people know what goes on between the times a vulnerability is
reported to the vendor and when a patch is released. Overall, the
process isn't very transparent. Most vendors and vulnerability
researchers don't always provide as many technical details about
the process to the user community as they should.
For a lot of researchers who might not feel a vendor is
responsive or quick enough, the answer has been to have these
various
"month-of" flaw disclosure projects. Do you think this is the
right way to motivate the vendor to act more quickly?
Arce: I think it's mainly a PR marketing effort rather than a
systematic attempt to improve security and find vulnerabilities. It
shouldn't be about lighting fires under the vendor. It should be
about thinking about the end user who is vulnerable. I'm not sure
these projects leave them in a safer position.
Another trend in the research community is the hacking
contests like one last month where
a researcher received a $10,000 prize for hacking a Mac. Is
that something that's useful or should the vendor always be given
time to develop a patch first?
Arce: In the case of the ConSecWest contest, there was work with
the vendor (Apple) and the patch came out very quickly. As for the
cash prizes for finding and disclosing bugs, I don't think it's the
right approach to improve security. The right thing to do is adopt
a scientific methodology for research, providing information that
can be tested and repeated by someone else, provide peer reviews of
information and follow a set of steps. We should focus on that
instead of trying to build a market for vulnerabilities.