Vulnerability CVE-2018-4436

Vulnerability Name:

CVE-2018-4436 (CCN-153777)

Assigned:

2018-12-05

Published:

2018-12-05

Updated:

2019-04-05

Summary:

A certificate validation issue existed in configuration profiles. This was addressed with additional checks. This issue affected versions prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/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): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): High Availibility (A): None

4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/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): Local 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:

5.0 Medium (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 Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

2.1 Low (CCN 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 Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

Vulnerability Type:

CWE-295

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2018-4436

Source: XF
Type: UNKNOWN
apple-tv-cve20184436-sec-bypass(153777)

Source: CCN
Type: Apple security document HT209342
About the security content of tvOS 12.1.1

Source: CCN
Type: Apple security document HT209343
About the security content of watchOS 5.1.2

Source: MISC
Type: Vendor Advisory
https://support.apple.com/kb/HT209340

Source: MISC
Type: Vendor Advisory
https://support.apple.com/kb/HT209342

Source: MISC
Type: Vendor Advisory
https://support.apple.com/kb/HT209343

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 12.1.1)

OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 12.1.1)

OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 5.1.2)

Configuration CCN 1:

cpe:/o:apple:tvos:12.1:*:*:*:*:*:*:*

Denotes that component is vulnerable

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