Vulnerability CVE-2021-30869 - CERT Civis.Net

Vulnerability Name:

CVE-2021-30869 (CCN-209959)

Assigned:

2021-08-24

Published:

2021-08-24

Updated:

2021-10-20

Summary:

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2021-30869

Source: XF
Type: UNKNOWN
appleios-cve202130869-code-exec(209959)

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212146

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212147

Source: CCN
Type: Apple security document HT212824
About the security content of iOS 12.5.5

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212824

Source: CCN
Type: Apple security document HT212825
About the security content of Security Update 2021-006 Catalina

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212825

Source: CCN
Type: CYBERSECURITY & INFRASTRUCTURE SECURITY AGENCY
KNOWN EXPLOITED VULNERABILITIES CATALOG

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.4)

OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version >= 12.0 and < 12.5.5)

OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version >= 14.0 and < 14.4)

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.14 and <= 10.14.6)

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.15 and <= 10.15.6)

OR cpe:/o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*

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:security_update_2021-002:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*

OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 11.0 and < 11.2)

Configuration CCN 1:

cpe:/o:apple:macos_catalina:10.15.1:*:*:*:*:*:*:*

OR cpe:/o:apple:iphone_os:12.5.4:*:*:*:*:*:*:*

Denotes that component is vulnerable