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New York
Hackers: The New Generation By Arik Hesseldahl Contents
Winn Schwartau's Info War
site | Monday, 20 January 1997: Interview with Comport
Security Consultant Winn Schwartau in "Information Warfare",
1996.
In contrast to many of his colleagues, Comport has no secrets to hide. His name
is Chris Hollander, he lives in Queens, and he is a 20-year old student at Baruch
College, where he has a part-time job as computer systems administrator.
Baruch College is part of the City University of New York. Its computers are on a
sub-network of the larger CUNY computer network that give students, staff and
faculty their access to e-mail and the World Wide Web. The system is also the
home to several city government Web pages, including those of Public Advocate
Mark Green and City Comptroller Alan Hevesi.
Using a simple World Wide Web browsing program, Hollander was able to exploit a
weakness in the CUNY system, and obtain the passwords of every user on the entire
system.
"People make such a big deal over hackers rewriting Web pages. I had the
information right there to do just that, and I got it using an elementary hacker
attack," Hollander said. He informed his boss of the security bug and it was
fixed, but he said such tricks are the sort of thing that hackers cut their teeth
on.
The weakness on the CUNY system involved a protocol developed for the Web called
CGI (for Common Gateway Interface). It retrieves information stored in a computer
database that is constantly being updated or changed, and automatically presents
it on the Web, eliminating the need for a human being to type the information in
HTML (Hypertext Markup Language), the primary language of Web pages. For example,
Web pages that constantly update weather information use CGI to check the latest
temperature readings stored on one computer and transfer them to a Web page. The
CUNY system also used a program called PHF that allows a user to search the CGI
information for specific key words.
"I entered a search on the Alta Vista search engine for pages that use CGI and
PHF and it stopped counting at 13,000 systems that are exploitable using that
weakness. There's been a security advisory out on that since 1995," he said.
Such a weakness can be used by a hacker to "root the system" which means to
achieve root-level access the highest level of access on any computer
system. Ideally, root access is reserved only for senior technicians and system
administrators. When a serious technical glitch occurs on a system, root access
allows a tech to pinpoint the problem and fix it without first having to jump
over security hurdles. Hollander said getting root access to a system is seen as
a challenge to many hackers, many of whom never do anything with the privilege
once they achieve it.
"The goal is not the pound (#) sign prompt that you get when you gain root. It's
the things you do that get you there. ...I've talked to people who root three
systems a day. To anyone using an ISP I would say it's not just likely, it's a
sure thing that someone has rooted that system. ...Every night someone comes into
the chat rooms on IRC (Internet Relay Chat) as root from one of the big service
providers," Hollander said.
Michael Erde is head of security for Interport Communications, one of New York's
largest ISPs. Interport's business clients include Hearst Publishing, World Wide
Diamond Source, S.C. Johnson Wax, Edelman Public Relations, Sotheby's Auction
House and The New York Observer. He said that simply appearing as "root" on an
IRC channel doesn't prove anything.
"Those users may not have root access at all on that system. They may have just
taken advantage of some relatively innocuous hole or in the IRC program or
something that it interfaces with," he said.
"For example on one of the mailing lists I subscribe to, it isn't uncommon for
someone to say he suspects or knows he has been rooted, and is seeking help from
the members of the list," Erde said.
And if rooting is as common as Hollander claims, is it something that ISPs try to
hide from their customers? Erde doesn't think so.
"Most ISPs are traditionally tight-lipped on security stuff because they don't
want to invite hack attempts," he said.
Erde was the only representative of a New York ISP to return messages for this
story. Representatives at Panix, and Internet Channel did not return phone and
e-mail messages.
"I can understand why people don't want to discuss this type of stuff. To be
honest, I only do it grudgingly," he said.
While a growing number of government and private organizations are relying
increasingly on the Internet and organizational intranets to exchange important
information and other vital business functions, studies are showing an almost
shocking lack of computer security measures.
A 1996 survey of 1,300 information security officers conducted by the
trade magazine Information
Week and Ernst and Young Information Security found that more than half of
the companies surveyed suffered a financial loss related to lapses in information
security during the previous two years. More than one-quarter of those companies
said their losses amounted to more than $250,000, and in some cases $1 million or
more.
Statistics like this are no surprise to Hollander. "Everyone and their mother is
putting a box on the Internet these days and they have no reason to be there.
There are so many bugs in Unix besides PHF. If they just install the Unix
software straight out of the box and don't even bother to look at what they're
installing on their system, they're just opening the door to an attack. That is
where 90 percent of the security holes come from, people installing things and
not knowing what they're doing," he said.
Information security lapses in the corporate world are exactly the kind of thing
that Winn Schwartau, president of Interpact
Inc., a Florida-based electronic security firm, and editor of the book
"Information Warfare" is trying to educate people about. Schwartau said that
despite the capabilities of some hackers, they are not the menace that some
people would like to believe.
One contributor to Schwartau's book, Michael Devost, goes so far to suggest that some hackers should
be embraced as a national resource. Devost described one case in which a hacker,
while looking for the credit history of former President Ronald Reagan,
discovered one individual credit card held by 700 people, each of which had no
credit history. He soon realized that he had found the names and addresses of
people in the Federal Witness Protection Program, and promptly informed the FBI
of the security hole.
Schwartau said he talked several FBI agents into giving a presentation at a
recent hacker convention in Las Vegas. "By and large the crowd loved it. The
question most often asked of the guys was 'Can I work for you?' I think that many
of the better hackers, not the wanna-bes, but the really good hackers want
security jobs. ...The most common way that security administrators are hired in
the private sector is the Hey you method.' They find people within the
organization who really don't know anything, and put them in charge of computer
security," he said.
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