Vulnerability Name:

CVE-2019-8834 (CCN-190616)

Assigned:2019-12-10
Published:2019-12-10
Updated:2020-10-30
Summary:A configuration issue was addressed with additional restrictions. This issue is fixed in tvOS 13.3, watchOS 6.1.1, iCloud for Windows 10.9, macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra, iOS 13.3 and iPadOS 13.3, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. An attacker in a privileged network position may be able to bypass HSTS for a limited number of specific top-level domains previously not in the HSTS preload list.
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/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): None
Integrity (I): Low
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2019-8834

Source: XF
Type: UNKNOWN
apple-cve20198834-sec-bypass(190616)

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210785

Source: CCN
Type: Apple security document HT210788
About the security content of macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierra

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210788

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210789

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210790

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210793

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210794

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210795

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apple:icloud:*:*:*:*:*:windows:*:* (Version < 7.16)
  • OR cpe:/a:apple:icloud:*:*:*:*:*:windows:*:* (Version >= 10.0 and < 10.9)
  • OR cpe:/a:apple:itunes:*:*:*:*:*:windows:*:* (Version < 12.10.3)
  • OR cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 13.3)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 13.3)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.15.2)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 13.3)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 6.1.1)

    • Configuration CCN 1:
  • cpe:/o:apple:macos_catalina:10.15:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:6.1.0:*:*:*:*:*:*:*
  • OR cpe:/o:apple:tvos:13.2:*:*:*:*:*:*:*
  • OR cpe:/a:apple:icloud:10.8:*:*:*:*:windows:*:*

    • * Denotes that component is vulnerable
    BACK
    apple icloud *
    apple icloud *
    apple itunes *
    apple ipados *
    apple iphone os *
    apple mac os x *
    apple tvos *
    apple watchos *
    apple macos catalina 10.15
    apple watchos 6.1.0
    apple tvos 13.2
    apple icloud 10.8