Advisory Details

May 6th, 2020

Apple macOS printtool Daemon Improper Input Validation Privilege Escalation Vulnerability

CVE ID	CVE-2020-3915
CVSS SCORE	7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Apple
AFFECTED PRODUCTS	macOS
VULNERABILITY DETAILS	This vulnerability allows local attackers to escalate privileges on affected installations of Apple macOS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the printtool daemon. The issue results from the lack of proper validation of printer icon data prior to further processing. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of root.
ADDITIONAL DETAILS	Apple has issued an update to correct this vulnerability. More details can be found at: https://support.apple.com/en-us/HT211100
DISCLOSURE TIMELINE	2019-12-06 - Vulnerability reported to vendor 2020-05-06 - Coordinated public release of advisory
CREDIT	HyungSeok Han (DaramG) @Theori

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