CVE-2019-8618

Vulnerability

A logic issue exists in the Apple sandbox components present in macOS Mojave, High Sierra, Sierra, iOS, and watchOS, where a sandboxed process may be able to circumvent sandbox restrictions [1][2][3]. The issue is present in versions prior to macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.2, and watchOS 5.2 [1][2][3]. The exact component responsible for the sandbox bypass is not publicly detailed by Apple in the available references [1][2][3].

Exploitation

To exploit this vulnerability, an attacker must first have the ability to execute code within a sandboxed process on the affected system [1][2][3]. The attacker would then need to leverage the logic issue to escape the sandbox restrictions [1][2][3]. The references do not specify the exact sequence of steps required or any additional prerequisites such as user interaction or a specific network position [1][2][3].

Impact

Successful exploitation allows a sandboxed process to break out of its sandbox and gain access to system resources or perform actions that would normally be restricted [1][2][3]. This could lead to information disclosure, modification of system files, or execution of arbitrary code outside the sandbox environment [1][2][3].

Mitigation

Apple addressed this issue with improved restrictions in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.2, and watchOS 5.2, all released in March 2019 [1][2][3]. Users should update to these versions to mitigate the vulnerability [1][2][3]. No workarounds are detailed in the available references [1][2][3].