A security researcher has published attack code he said makes it easy to steal the iCloud passwords of people using the latest version of Apple iOS for iPhones and iPads.
The proof-of-concept attack exploits a flaw in Mail.app, the default iOS e-mail program. Since the release of version 8.3 in early April, the app has failed to properly strip out potentially dangerous HTML code from incoming e-mail messages. The proof-of-concept exploit capitalizes on this failure by downloading a form from a remote server that looks identical to the legitimate iCloud log-in prompt. It can be displayed each time the booby-trapped message is viewed.
“This bug allows remote HTML content to be loaded, replacing the content of the original e-mail message,” a user with the GitHub name jansoucek wrote in a readme file accompanying the exploit. “JavaScript is disabled in this UIWebView, but it is still possible to build a functional password ‘collector’ using simple HTML and CSS [cascading style sheets].”
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