Advisory Details

April 3rd, 2014

Apple Mobile Safari isindex Use-After-Free Remote Code Execution Vulnerability

ZDI-14-057
ZDI-CAN-2109

CVE ID CVE-2014-1290
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Apple
AFFECTED PRODUCTS Safari
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 13507. 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. 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 the handling of isindex elements. The issue lies in setting attributes to invalid values. By manipulating a document's elements an attacker can force a dangling pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.

ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT6162
DISCLOSURE TIMELINE
  • 2014-01-30 - Vulnerability reported to vendor
  • 2014-04-03 - Coordinated public release of advisory
CREDIT ant4g0nist (SegFault)
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