Zero-day vulnerability in Apple iOS

Privilege escalation
CVE-2019-7287

According to Ben Hawkes, team leader at Project Zero, the vulnerability has been exploited in the wild as 0day.

Vulnerability details

Advisory: SB2019020801 - Multiple vulnerabilities in Apple iOS

Vulnerable component: Apple iOS

CVE-ID: CVE-2019-7287

CVSSv3 score: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-119 - Memory corruption

Description:

The vulnerability allows a local attacker to gain elevated privileges.

The weakness exists due to a boundary error in the IOKit component when handling malicious input. A local attacker can run a specially crafted application, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Note: according to Ben Hawkes, team leader at Project Zero, the vulnerability has been exploited in the wild as 0day.

External links:

https://twitter.com/benhawkes/status/1093581737924259840

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.