More than ever, corporate networks of all sizes and IT departments are being
hit daily with all kinds of Internet attacks from the outside. Some are even
getting attacked from the inside! Even when protected with the best firewalls,
proxy servers or intrusion detectors, for as long as there are hackers, attacks
will continue. A security breach can be a nightmare for even an experienced
network administrator, an IT manager or a CEO. This section helps you better
understand what it takes to fully protect your corporate networks, from the
inside as well as the outside.
Internet Security and Prevention
Report: Internet applications to become more vulnerable in 2005
According to IT consultants at Unisys, applications and their sub-systems will
come under increasing hacker vulnerability in 2005. Whereas most attacks are
currently made against operating systems or browsers, Unisys believes that
applications are the next target as they are just as vulnerable but are not
as high on IT managers' agendas for patching. The company expects so-called
'lemon laws' to spring out of such attacks, as customers seek legal redress
for faulty software. "In 2005 we will see security challenges with significant
business impact - legal, economic and technological," said Unisys chief security
advisor Sunil Misra in his end of year report. "Enterprises will find themselves
challenged as never before to make focused, strategic and pervasive investments
in security. But those investments will be necessary for any organisation." The
company also forecasts that next year the mobile arena will become the focus for
virus writers, and that hackers will increasingly group together to carry out
co-ordinated attacks. As phones become more capable and connected using a variety
of radio technologies, they become more vulnerable to attacks seeking to steal
personal data, Unisys warned. The company also pointed to the increasing danger
posed by a new generation of hackers motivated by economic gain who will not
hesitate to cause major damage to systems if their demands are not met.
Are desktop search engines safe to use?
Desktop search features and newer computer indexing tools such as Google's Desktop
Search could cause security risks. The reason is simply because companies that
use the Secure Sockets Layer (SSL protocol) to remote access or VPN, these
protocols could copy content accessed during any SSL session and make it
available to anybody that later uses the same computer. Caches created by
PC search tools get around the security many SSL vendors have put in
place to purge cached data from remote machines as secure sessions shut
down. These so-called cache-cleaning agents wipe out temporary files
created during SSL sessions, but they don't wipe out the copies made
by the search tools. "You could end up caching and indexing files you
don't want cached and indexed on machines outside your control," says
Dan Harman, remote access administrator for real estate developer Lewis
Group in Upland, Calif., which uses SSL remote-access gear made by Whale
Communications Ltd.
Trojan horse spies on unsuspecting Internet banking customers
Security experts say they've discovered a Trojan horse that records e-banking user
details and Web surfing habits. Antivirus company Sophos is warning that the
Banker-AJ Trojan is targeting online customers of British banks such as Abbey,
Barclays, Egg, HSBC, Lloyds TSB, Nationwide and NatWest. The Trojan affects
computers running Microsoft Windows. The company said that once installed, the
Trojan waits for users to visit their online banking Web sites, then captures
passwords and takes screenshots of the session. The information is relayed to
the hackers behind the ploy, who use the data to steal money. "It's the next
generation of phishing attacks," said Graham Cluley, senior technology consultant
for Sophos. "These rely on people going to real, legitimate sites. Once the Trojan
determines that you've gone there, it starts taking keystroke logs and snaps shots
of machines and sends it back to hackers." Phishing scammers typically set up
bogus Web sites to capture victims' personal information. They send e-mails
that appear to come from trusted companies to lure people to the fake sites,
where victims are asked to enter information such as credit card data. Attacks
frequently target bank customers, but eBay and Amazon.com have also been recent
targets.
Internet attacks on corporate networks constantly increasing
Many security companies will be making product announcements at this week's Computer
Security Institute (CSI) show in Washington, D.C., but the show starts on an
eye-opening note with a new survey indicating network security breaches are
definetely on the increase. According to a research report sponsored by
Britestream Networks Inc., 76 per cent of respondents believe their network
is more secure than it was a year earlier, but at the same time 81 per cent
say that attacks on their network are increasing. The national survey was
conducted last month by Q&A Research among 300 IT professionals in companies
with annual revenues of more than US$30 million. Other findings from the report
were equally sobering. For instance, one in five respondents said a hacker had
gained access to their company's network. "We were surprised that many IT managers
are feeling fairly secure," said Warren Pino, CEO of Q&A Research Inc. "Because
they made investments in network security last year, two-thirds of respondents
feel that their network is more secure than their competitor's.
Group sets minimum standards for Internet security firewalls
A small group of security companies has set a baseline standard for application
firewalls and has challenged the industry's biggest players to put their goods
to the test. The Applications Security Consortium, comprised of F5 Networks,
Imperva, NetContinuum and Teros, plans to make its formal launch at the Computer
Security Institute's annual conference in Washington, D.C., on Tuesday. The joint
initiative aims to establish "minimum criteria" for protecting Web-based
applications. "The four of us have expertise in application firewalls, and
it occurred to us independently that there was a need for clarification in
the market," said Gene Banman, chief executive of NetContinuum, who noted the
group formed last month. "The incumbent security vendors have made claims about
application firewalls that have created confusion in the space." The Applications
Security Consortium's five criteria for application firewalls say a product must:
Detect and block application inputs containing malicious executable commands.
Security hole makes available employee payroll records on the Web
Many payroll records of at least twelve companies were available to the Internet
by an Internet security hole in the online W-2 service of PayMaxx, the accounting
firm has acknowledged today. The security flaw, uncovered by a Web application
programmer this week, affected a limited number of customers, PayMaxx said
Thursday in a statement sent to CNET News.com. PayMaxx closed the site Wednesday,
after the researcher claimed that two security holes had exposed data on more than
25,000 people. Only six attempts to access unauthorized data were made in the week
before the company shuttered the site, Tennessee-based PayMaxx said. The company
said no other attempts had been made to exploit the vulnerability. "Based on our
initial analysis, the potential exposure is limited to a small number of companies
and W-2 forms," PayMaxx said. "We have no evidence to substantiate that any other
access has occurred."
Even with XP-2, there are still many security bugs left in Windows
Two new security holes in Internet Explorer 6.0 were unveiled by a security firm
Wednesday that enables hackers to bypass some security features, even in Microsoft's
most secure OS, Windows XP SP2. According to Danish security company Secunia, the
"highly critical" vulnerabilities stem from a flaw in IE's drag-and-drop feature
and in the browser's security zone. Hackers could exploit these bugs by enticing
users to malicious Web sites, where specially crafted files--including image and
help files--could compromise the PC, leaving it open to attack or hijack.
Both bugs can be exploited to circumvent Windows XP SP2's Local Computer zone
lockdown security feature, said Secunia. "This has been confirmed on a fully
patched system with Internet Explorer 6.0 and Microsoft Windows XP SP2," wrote
Secunia in its online alert.
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