Vulnerability Name:

CVE-2018-4086 (CCN-138273)

Assigned:2018-01-23
Published:2018-01-23
Updated:2018-05-04
Summary:An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. macOS before 10.13.3 is affected. tvOS before 11.2.5 is affected. watchOS before 4.2.2 is affected. The issue involves the "Security" component. It allows remote attackers to spoof certificate validation via crafted name constraints.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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: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
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-295
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2018-4086

Source: BID
Type: Third Party Advisory, VDB Entry
102782

Source: CCN
Type: BID-102782
Apple iOS/WatchOS/tvOS/macOS Multiple Security Vulnerabilities

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040265

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040267

Source: XF
Type: UNKNOWN
apple-macos-cve20184086-sec-bypass(138273)

Source: CCN
Type: Apple security document HT208462
About the security content of tvOS 11.2.5

Source: CCN
Type: Apple security document HT208465
About the security content of macOS High Sierra 10.13.3, Security Update 2018-001 Sierra, and Security Update 2018-001 El Capitan

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208462

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208463

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208464

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208465

Vulnerable Configuration:Configuration 1:
  • cpe:/h:apple:tv:*:*:*:*:*:*:*:* (Version < 11.2.5)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 11.2.5)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.13.3)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 4.2.2)

    • Configuration CCN 1:
  • cpe:/o:apple:macos_sierra:10.12.6:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple apple tv *
    apple iphone os *
    apple mac os x *
    apple watchos *
    apple macos sierra 10.12.6