Advisory Details

February 7th, 2018

(Pwn2Own) Apple Safari FTL JIT Integer Overflow Remote Code Execution Vulnerability

ZDI-18-150
ZDI-CAN-5344

CVE ID CVE-2017-7160
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 ['29904']. 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 arguments to JavaScript functions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. 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:
https://support.apple.com/en-us/HT208334
DISCLOSURE TIMELINE
  • 2017-11-02 - Vulnerability reported to vendor
  • 2018-02-07 - Coordinated public release of advisory
  • 2018-02-07 - Advisory Updated
CREDIT Richard Zhu (fluorescence)
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