Advisory Details

March 26th, 2020

Apple Safari Object Transition Cache Type Confusion Remote Code Execution Vulnerability

ZDI-20-341
ZDI-CAN-9855

CVE ID CVE-2020-3897
CVSS SCORE 6.3, AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
AFFECTED VENDORS Apple
AFFECTED PRODUCTS Safari
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected 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 object transition cache. By performing actions in JavaScript, an attacker can trigger a type confusion condition. An attacker can leverage this vulnerability to execute code in 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-eg/HT211104
DISCLOSURE TIMELINE
  • 2019-12-19 - Vulnerability reported to vendor
  • 2020-03-26 - Coordinated public release of advisory
CREDIT Brendan Draper (@6r3nd4n)
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