In all, at least 538,000 pages have been compromised by the same attack. Attacks the bear similar fingerprints but point to different domains have claimed close to 500,000 more.
“These attacks have been ongoing and are changing pretty often,” said Mary Landesman, a senior researcher with ScanSafe, a Cisco-owned service that provides customers with real-time intelligence about malicious sites. “Interestingly, many of the sites compromised have been involved in repeated compromises over the past few months. It’s not clear whether these are the work of the same attackers or are competing attacks.”
SQL injection attacks succeed because web applications don’t properly filter search queries and other user-supplied input for malicious text. When the data is processed, commands are passed to a website’s backend server, causing it to add links or cough up sensitive information.
The attacks that hit Apple used highly encoded text strings to sneak past web-application filters. They are only the latest in a series of hack attacks to hit large numbers of websites.
The exploits used this time around weren’t as effective as they might have been. According to Landesman, many of the iframes buried into the websites contained HTML that couldn’t be rendered.
No comments:
Post a Comment