Vulnerability Name:

CVE-2021-1824 (CCN-200724)

Assigned:2020-12-08
Published:2021-04-26
Updated:2022-07-12
Summary:This issue was addressed with improved entitlements. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. A malicious application with root privileges may be able to access private information.
CVSS v3 Severity:4.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N)
3.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-1824

Source: XF
Type: UNKNOWN
apple-macos-cve20211824-info-disc(200724)

Source: CCN
Type: Apple security document HT212325
About the security content of macOS Big Sur 11.3

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212325

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212326

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.6:supplemental_update:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:*
  • OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 11.0 and < 11.3)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.15 and <= 10.15.5)
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:apple:macos_big_sur:11.2.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple mac os x 10.15.7 supplemental_update
    apple mac os x 10.15.7 security_update_2020-005
    apple mac os x 10.15.7 security_update_2020-007
    apple mac os x 10.15.7 -
    apple mac os x 10.15.7 security_update_2020-001
    apple mac os x 10.15.6 supplemental_update
    apple mac os x 10.15.6 -
    apple mac os x 10.15.7 security_update_2020
    apple macos *
    apple mac os x *
    apple mac os x 10.15.7 security_update_2021-001
    apple macos big sur 11.2.2