Apple OS X CoreStorage Privilege Escalation Vulnerability
Vulnerability Details
This vulnerability allows local attackers to escalate privileges on vulnerable 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 CoreStorage. The issue lies with the failure to validate user-supplied arguments which can cause a null pointer dereference. An attacker can leverage this vulnerability to escalate privileges and execute code under the context of the kernel.
Additional Details
Apple has issued an update to correct this vulnerability. More details can be found at:
https://support.apple.com/en-us/HT207423
Disclosure Timeline
- 2016-08-25 - Vulnerability reported to vendor
- 2017-06-21 - Coordinated public release of advisory
Credit
daybreaker@Minionz
