Advisory Details

April 29th, 2015

Apple OS X IOHIDSecurePromptClient Untrusted Pointer Dereference Arbitrary Code Execution Vulnerability

ZDI-15-165
ZDI-CAN-2814

CVE ID CVE-2015-1140
CVSS SCORE 6.9, AV:L/AC:M/Au:N/C:C/I:C/A:C
AFFECTED VENDORS Apple
AFFECTED PRODUCTS OS X
VULNERABILITY DETAILS


This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Apple OS X. 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 calls to IOHIDSecurePromptClient. The issue lies in the failure to properly sanitize user-supplied pointers before they are dereferenced. An attacker can leverage this vulnerability to overwrite arbitrary kernel memory.
ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
https://support.apple.com/en-us/HT204659
DISCLOSURE TIMELINE
  • 2015-03-27 - Vulnerability reported to vendor
  • 2015-04-29 - Coordinated public release of advisory
CREDIT Vitaliy Toropov
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