Sloppy banks open the door to phishermen

Wednesday, 21 July 2004, 11:42 AM EST

A new vulnerability makes it easier for fraudsters to pass off content from bogus websites as the real thing.

Using a variant of well-known cross site scripting attacks, British Web developer and security researcher Sam Greenhalgh was able to inject JavaScript from his own website into pages generated by NatWest, Mastercard and Barclays. Even the website of GCHQ, Britain's electronic eavesdropping operation, can be overlaid with bogus content, Greenhalgh shows.

Since the demo was first published late last month, MasterCard and Barclays have blocked the exploit route. This is just as well, as both have recently announced initiatives to combat phishing - apparently without ensuring that their own houses were in order. The continued vulnerability of other sites - such as NatWest's - is a cause for serious concern, because it could help fraudsters make their scams appear more plausible.

By John Leyden at The Register.

[ Read more ]

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