Vulnerability Name:

CVE-2019-8634 (CCN-161685)

Assigned:2019-05-13
Published:2019-05-13
Updated:2022-10-14
Summary:An authentication issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.5. A user may be unexpectedly logged in to another user’s account.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
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:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
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:CWE-287
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2019-8634

Source: XF
Type: UNKNOWN
apple-macos-cve20198634-sec-bypass(161685)

Source: CCN
Type: Apple security document HT210119
About the security content of macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT210119

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.12.6)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.14.5)
  • 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_2018-002:*:*:*:*:*:*
  • 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_2019-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.13.6:-:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2017-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2019-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:-:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2018-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2018-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2018-003:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2018-004:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2018-005:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2018-006:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.12.6:security_update_2019-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.13 and < 10.13.6)

  • Configuration CCN 1:
  • cpe:/o:apple:macos_mojave:10.14.4:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    apple mac os x *
    apple mac os x *
    apple mac os x 10.13.6 security_update_2018-003
    apple mac os x 10.13.6 security_update_2018-002
    apple mac os x 10.13.6 security_update_2019-002
    apple mac os x 10.13.6 security_update_2019-001
    apple mac os x 10.13.6 -
    apple mac os x 10.12.6 security_update_2017-001
    apple mac os x 10.12.6 security_update_2019-002
    apple mac os x 10.12.6 -
    apple mac os x 10.12.6 security_update_2018-001
    apple mac os x 10.12.6 security_update_2018-002
    apple mac os x 10.12.6 security_update_2018-003
    apple mac os x 10.12.6 security_update_2018-004
    apple mac os x 10.12.6 security_update_2018-005
    apple mac os x 10.12.6 security_update_2018-006
    apple mac os x 10.12.6 security_update_2019-001
    apple mac os x *
    apple macos mojave 10.14.4