Vulnerability Name:

CVE-2019-8642 (CCN-190759)

Assigned:2019-03-25
Published:2019-03-25
Updated:2020-11-02
Summary:An issue existed in the handling of S-MIME certificates. This issue was addressed with improved validation of S-MIME certificates. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. Processing a maliciously crafted mail message may lead to S/MIME signature spoofing.
CVSS v3 Severity:3.3 Low (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
2.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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): Low
Integrity (I): Low
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
6.4 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-295
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2019-8642

Source: XF
Type: UNKNOWN
apple-macos-cve20198642-spoofing(190759)

Source: CCN
Type: Apple security document HT209600
About the security content of macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT209600

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.14.4)

    • Configuration CCN 1:
  • cpe:/o:apple:macos_mojave:10.14.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple mac os x *
    apple macos mojave 10.14.3