Vulnerability Name:

CVE-2018-4238 (CCN-144502)

Assigned:2018-05-29
Published:2018-05-29
Updated:2019-10-03
Summary:An issue was discovered in certain Apple products. iOS before 11.4 is affected. The issue involves the "Siri" component. It allows physically proximate attackers to bypass the lock-screen protection mechanism and enable Siri.
CVSS v3 Severity:2.4 Low (CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
2.1 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/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): Physical
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
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/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): Physical
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:CWE-732
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2018-4238

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1041031

Source: XF
Type: UNKNOWN
appleios-cve20184238-sec-bypass(144502)

Source: CCN
Type: Apple security document HT208848
About the security content of iOS 11.4

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208848

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 11.4)

    • Configuration CCN 1:
  • cpe:/o:apple:ios:11.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple iphone os *
    apple iphone os 11.3