CVE-2021-1784 Information

Description

A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks. This issue is fixed in macOS Big Sur 11.3 Security Update 2021-002 Catalina Security Update 2021-003 Mojave. A malicious application may be able to modify protected parts of the file system.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://support.apple.com/en-us/HT212327 https://support.apple.com/en-us/HT212325 https://support.apple.com/en-us/HT212326

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5