CVE-2021-1784

HIGH

macOS 10.14-10.14.4 and 11.0-11.2 - Unprotected File System Modification via DiskArbitration

Title source: llm
STIX 2.1

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.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212325
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212326
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212327

Scores

CVSS v3 7.5
EPSS 0.0197
EPSS Percentile 78.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

Status published
Products (5)
apple/mac_os_x 10.14.6 (18 CPE variants)
apple/mac_os_x 10.15.6 (2 CPE variants)
apple/mac_os_x 10.15.7 (7 CPE variants)
apple/mac_os_x 10.14 - 10.14.5
apple/macos 11.0 - 11.3
Published Sep 08, 2021
Tracked Since Feb 18, 2026