Vulnerability CVE-2021-30702 - CERT Civis.Net

Vulnerability Name:

CVE-2021-30702 (CCN-202308)

Assigned:

2021-05-24

Published:

2021-05-24

Updated:

2021-09-16

Summary:

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A person with physical access to a Mac may be able to bypass Login Window.

CVSS v3 Severity:

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

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

5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/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): None Integrity (I): High Availibility (A): None

CVSS v2 Severity:

2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

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

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): Complete Availibility (A): None

Vulnerability Type:

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2021-30702

Source: XF
Type: UNKNOWN
apple-macos-cve202130702-sec-bypass(202308)

Source: CCN
Type: Apple security document HT212529
About the security content of macOS Big Sur 11.4

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212529

Source: CCN
Type: Apple security document HT212530
About the security content of Security Update 2021-003 Catalina

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212530

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212531

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.14 and <= 10.14.5)

OR cpe:/o:apple:mac_os_x: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:10.14.6:security_update_2021-001:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2021-002:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2021-003:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:supplemental_update:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.14.6:supplemental_update_2:*:*:*:*:*:*

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_2021-001:*:*:*:*:*:*

OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*

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

OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 11.0 and < 11.4)

Configuration CCN 1:

cpe:/o:apple:macos_catalina:10.15.2:*:*:*:*:*:*:*

Denotes that component is vulnerable