Advisory Details

March 2nd, 2011

Apple Safari WebKit Range Object Remote Code Execution Vulnerability

ZDI-11-096
ZDI-CAN-970

CVE ID CVE-2011-0115
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS Apple
AFFECTED PRODUCTS WebKit
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10672. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari's WebKit. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within how WebKit processes a range object as defined with the DOM level 2 specification. When processing the contents of a range, WebKit will fail to accommodate for manipulation of the DOM due to an event listener. This can lead to code execution under the context of the application.

ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT4554
DISCLOSURE TIMELINE
  • 2010-11-05 - Vulnerability reported to vendor
  • 2011-03-02 - Coordinated public release of advisory
CREDIT J23 -- http://twitter.com/HansJ23
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