Vulnerability Name:

CVE-2016-4643 (CCN-155583)

Assigned:2016-07-18
Published:2016-07-18
Updated:2019-01-17
Summary:In iOS before 9.3.3, tvOS before 9.2.2, and OS X El Capitan before v10.11.6 and Security Update 2016-004, a validation issue existed in the parsing of 407 responses. This issue was addressed through improved response validation.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/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): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/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): Adjacent
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
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.6 Medium (CCN CVSS v2 Vector: AV:A/AC:H/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2016-4643

Source: XF
Type: UNKNOWN
apple-ios-cve20164643-info-disc(155583)

Source: CCN
Type: Apple security document HT206902
About the security content of iOS 9.3.3

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT206902

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT206903

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT206905

Vulnerable Configuration:Configuration 1:
  • cpe:/h:apple:tv:*:*:*:*:*:*:*:* (Version < 9.2.2)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 9.3.3)
  • OR cpe:/o:apple:mac_os:*:*:*:*:*:*:*:* (Version >= 10.11.0 and < 10.11.6)

    • Configuration CCN 1:
  • cpe:/o:apple:tvos:9.2.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:9.3.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple apple tv *
    apple iphone os *
    apple mac os *
    apple tvos 9.2.1
    apple iphone os 9.3.2