Learning
From Slammer
Amid frustration over patches, a case for ROI on security spending
Jan. 27, 2003 -- What's the biggest lesson learned from
the latest network-clogging Internet worm attack?
"There
is no patch for stupidity," according to the folks at SQL
Security, which specializes in securing Microsoft SQL servers,
which were targeted in Saturday's release of the "SQL Slammer"
worm.
As with
the NIMDA and CodeRed worms in 2001, many secure networks were
overwhelmed by huge traffic generated by systems left open to
a known vulnerability.
The SQL
worm, which was only 376 bytes, illustrated the limitations of
community-based security in a networked world. The worm targeted
a six-month old security hole in Microsoft SQL Server for which
downloadable software updates - known as "patches" in
industry jargon - have been available since July.
But even
Microsoft itself had
not fully patched its systems and as a result was hammered
by traffic from the worm. This raises a fundamental question:
If the company making the software and issuing the patches can't
stay current on its security updates, can their customers' system
administrators be expected to do any better?
In an
odd paradox, the Slammer crisis may provide a fresh argument for
outsourcing network security to managed hosting specialists, or
at least loosening tight in-house security budgets.
Internet
security specialists say the key is to focus spending on competent
management of your company's systems, rather than external threats.
"It's
not that the bad guys are good," said Ira Winkler, chief
security strategist at Hewlett-Packard. "It's that the good
guys are bad."
"So
many people think it's the Secret of the Ninja to secure your
network," Winkler told the recent IMN Cybersecurity Summit
in New York. "Security problems are preventable.
"But
if you don't understand your enemies, they seem like geniuses.
Teenagers want significance, and they don't need knowledge when
you leave yourself open. Stupid human errors cost more than everything
else combined."
NIMDA and CodeRed cost industry between $5 billion and $7 billion
in lost time and cleanup efforts, according to Steve Katz of Security
Risk Solutions, who has held IT security posts at JP Morgan, Citigroup
and Merrill Lynch.
"NIMDA
would not have been an issue if people had corrected problems
that had been known for months and applied patches that had been
available for months," Katz told an audience at the CyberSecurity
Summit.
Two years
later, costs are again being incurred as manpower is diverted
to the cleanup effort. Why do viruses and worms targeting known
vulnerabilities continue to wreak havoc?
A common
complaint from security professionals is that top management gives
lip service to security, but is loathe to invest unless managers
can demonstrate a clear return on investment. In a tight spending
climate, business cases are built on unknowable future threats
face an uphill struggle.
"I think that's
the hardest thing," said Stanley Jarocki, senior vice president
of information Security for Morgan Stanley. "I don't think
a lot of the ROI models (on security investments) work. But it's
a common sense issue. Get your top managers engaged in a conversation."
Jarocki,
who also chairs the Financial Services Information Sharing and
Analysis Center, said the best strategy is to equate information
security investments to an insurance policy - a modest short-term
investment that can mitigate future risk.
"Just
figure out how to phrase what you want in a way management wants
to hear it," offered Winkler, who advocated a "Wizard
of Oz" strategy that focuses spending on expertise.
"The
real moral of the Wizard of Oz was that everyone had what they
needed; they just didn't know it," said Winkler. "None
of the vendors have a system that will magically make you secure.
Train your current workers. You've got to let them know what they
don't know. Focus on the basics, not the hype."
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