Advisory Details

July 20th, 2010

Mozilla Firefox DOM Attribute Cloning Remote Code Execution Vulnerability

ZDI-10-134
ZDI-CAN-832

CVE ID CVE-2010-1208
CVSS SCORE 10.0, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Mozilla Firefox
AFFECTED PRODUCTS 3.6.x
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10025. 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 Mozilla Firefox. 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 due to a workaround that was implemented in order to support recursive cloning of attribute nodes. If an event is added to the first attribute node, the application can be made to free the node, and then later access a reference to it. This can lead to code execution under the context of the application.

ADDITIONAL DETAILS Mozilla Firefox has issued an update to correct this vulnerability. More details can be found at:
http://www.mozilla.org/security/announce/2010/mfsa2010-35.html
DISCLOSURE TIMELINE
  • 2010-06-17 - Vulnerability reported to vendor
  • 2010-07-20 - Coordinated public release of advisory
CREDIT regenrecht
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