[ISN] Spammers attack wireless networks

From: InfoSec News (isnat_private)
Date: Thu Apr 03 2003 - 22:54:07 PST

  • Next message: InfoSec News: "[ISN] Akamai declines to assist Al-Jazeera site"

    http://www.vnunet.com/News/1139931
    
    By Emma Nash 
    03-04-2003
    
    Nearly three-quarters of malicious connections to wireless networks
    are used for sending spam, according to new research.
    
    Security consultant Z/Yen set up two wireless local area networks
    (Lans) on behalf of RSA Security to monitor unauthorised connections -
    a so-called 'honeypot' trap.
    
    The survey found that almost a quarter of unauthorised connections to
    the wireless Lans were intentional, and 71 per cent of those were used
    to send emails.
    
    "The biggest problem for someone wanting to deliver spam is having
    anonymity," said Z/Yen consultant Phil Cracknell.
    
    "If there's an opportunity to deliver email through someone else's
    network, and there's no log of it, then this is a perfect opportunity
    for spammers."
    
    Last week, the government published proposals to crack down on spam,
    which is estimated to account for up to 40 per cent of global email.
    
    If the proposals come into force, senders of unsolicited email will
    require prior consent from recipients, and web users will have to be
    told if cookies are being used, with the option to reject them.
    
    Individuals will also be given more power to decide if they want to be
    listed in subscriber directories.
    
    E-commerce minister Stephen Timms warned that the spread of
    unsolicited email could damage the development of online business.
    
    "Spam has become the curse of the internet," he said. "It's a source
    of major frustration as it clogs up inboxes the world over. Spam is in
    danger of becoming a real deterrent to online communication."
    
    John Mawhood, head of the commercial and technology department at law
    firm Tarlo Lyons, said the legal issues surrounding unsolicited use of
    wireless Lans are cloudy, but sending unauthorised email could create
    problems for internet service providers (ISPs).
    
    "If it is discovered that someone is engaging in denial-of-service
    attacks, for example, you could end up with the provider of the
    network being accused of collaborating," he said.
    
    "A person who manages a wireless Lan, in the sense of owning and
    running it, will be responsible for the traffic on their network. The
    ISP will want to make sure spam is not originating from its systems."
    
    In the honeypot test, the first unauthorised connection to the
    wireless Lans was made in just over two-and-a-half hours.
    
    "I think this is pretty worrying," said Tim Pickard, European
    strategic marketing director at RSA Security. "Every fourth connection
    is malicious, which is quite high."
    
    The honeypots were deployed following research by RSA and Z/Yen that
    showed a third of wireless Lans in the City are vulnerable to attacks
    by hackers.
    
    
    
    -
    ISN is currently hosted by Attrition.org
    
    To unsubscribe email majordomoat_private with 'unsubscribe isn'
    in the BODY of the mail.
    



    This archive was generated by hypermail 2b30 : Fri Apr 04 2003 - 01:40:49 PST