CVE-2021-1784 — Incorrect Permission Assignment in Apple Macos

CWE-732 — Incorrect Permission Assignment5 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.4%
top 41.70%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Apple MacosApple MAC OS X
Timeline
PublishedSep 8
Latest updateMay 24

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:NExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶CVEListV5apple/macosunspecified — 11.3+1
▶NVDapple/macos11.0 — 11.3
▶NVDapple/mac_os_x10.14 — 10.14.5+4

🔴Vulnerability Details

2
GHSA
GHSA-mh4j-qch9-f5wf: A permissions issue existed in DiskArbitration↗2022-05-24
▶
CVEList
CVE-2021-1784: A permissions issue existed in DiskArbitration↗2021-09-08
▶

📋Vendor Advisories

2
Apple
CVE-2021-1784: macOS Big Sur 11.3↗2021-04-26
▶
Apple
CVE-2021-1784: Security Update 2021-002 Catalina↗2021-04-26
▶
CVE-2021-1784 — Incorrect Permission Assignment | cvebase