Vulnerability CVE-2018-4174

Vulnerability Name:

CVE-2018-4174 (CCN-141156)

Assigned:

2018-03-29

Published:

2018-03-29

Updated:

2019-10-03

Summary:

An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted messages by leveraging an inconsistency in the user interface.

CVSS v3 Severity:

5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/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): High Integrity (I): None Availibility (A): None

5.9 Medium (CCN 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 (CCN 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

CVSS v2 Severity:

4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

5.4 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:N/I:C/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): High Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Complete Availibility (A): None

Vulnerability Type:

CWE-noinfo

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2018-4174

Source: BID
Type: Third Party Advisory, VDB Entry
103581

Source: CCN
Type: BID-103581
Apple iOS and macOS Multiple Security Vulnerabilities

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040604

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040608

Source: XF
Type: UNKNOWN
apple-macos-cve20184174-sec-bypass(141156)

Source: CCN
Type: Apple security document HT208692
About the security content of macOS High Sierra 10.13.4, Security Update 2018-002 Sierra, and Security Update 2018-002 El Capitan

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208692

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208693

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 11.3)

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.13.4)

Denotes that component is vulnerable

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