[ISN] Plague of web bugs descend on British sites

[InfoSec News]

http://www.theregister.co.uk/2009/06/01/website_bug_plague/

By Dan Goodin in San Francisco
The Register
1st June 2009

It's been a busy week for high-profile web vulnerabilities, with 
discoveries of careless bugs on the sites of three British companies.

Online banking sites for HSBC and Barclays Group and the website for The 
Telegraph were caught with their pants down, as hackers published 
screenshots and other details that showed all three were susceptible to 
attacks that could compromise the security of people who visit the 
properties.

The XSS, or cross-site scripting, errors on HSBC were still present on a 
variety of HSBC sites on Monday afternoon California time, some 48 hours 
after the XSSed blog first reported them. The bugs allowed attackers to 
inject javascript and content into HSBC websites simply by tricking a 
user into clicking on a specially manipulated web address.

"Malicious people can exploit these bugs to conduct phishing attacks and 
infect bank customers and site visitors with crimeware," the blog 
warned.

The accompanying screenshot shows a browser that is pointed at an HSBC 
site for Hong Kong users. But because of flaws in the way the site was 
designed, the XSSed researchers were able to superimpose their own 
banner and article into the browser window.

[...]