Vulnerability Name:

CVE-2020-3896 (CCN-216063)

Assigned:2019-12-18
Published:2021-03-16
Updated:2022-01-04
Summary:This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra. A malicious application may be able to overwrite arbitrary files.
CVSS v3 Severity:5.5 Medium (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 (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
7.7 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)
6.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
6.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-3896

Source: XF
Type: UNKNOWN
apple-macos-cve20203896-sec-bypass(216063)

Source: CCN
Type: Apple security document HT211100
About the security content of macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211100

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.13 and < 10.13.6)
  • OR cpe:/o:apple:mac_os_x:10.13.6:-:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2018-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2018-003:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2019-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2019-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2019-003:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2019-004:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2019-005:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2019-006:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2019-007:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:security_update_2020-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.14 and < 10.14.6)
  • 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_2020-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.15 and < 10.15.4)

    • Configuration CCN 1:
  • cpe:/o:apple:macos_catalina:10.15.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple mac os x *
    apple mac os x 10.13.6 -
    apple mac os x 10.13.6 security_update_2018-002
    apple mac os x 10.13.6 security_update_2018-003
    apple mac os x 10.13.6 security_update_2019-001
    apple mac os x 10.13.6 security_update_2019-002
    apple mac os x 10.13.6 security_update_2019-003
    apple mac os x 10.13.6 security_update_2019-004
    apple mac os x 10.13.6 security_update_2019-005
    apple mac os x 10.13.6 security_update_2019-006
    apple mac os x 10.13.6 security_update_2019-007
    apple mac os x 10.13.6 security_update_2020-001
    apple mac os x *
    apple mac os x 10.14.6 -
    apple mac os x 10.14.6 security_update_2019-001
    apple mac os x 10.14.6 security_update_2019-002
    apple mac os x 10.14.6 security_update_2020-001
    apple mac os x *
    apple macos catalina 10.15.3