Vulnerability CVE-2017-2448

Vulnerability Name:

CVE-2017-2448 (CCN-124008)

Assigned:

2016-12-01

Published:

2017-03-27

Updated:

2019-03-08

Summary:

An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. The issue involves the "Keychain" component. It allows man-in-the-middle attackers to bypass an iCloud Keychain secret protection mechanism by leveraging lack of authentication for OTR packets.

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

4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/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): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None 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

4.0 Medium (CCN 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 Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

Vulnerability Type:

CWE-200

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2017-2448

Source: BID
Type: Third Party Advisory, VDB Entry
97134

Source: CCN
Type: BID-97134
Apple macOS, iOS and tvOS CVE-2017-2448 Security Bypass Vulnerability

Source: SECTRACK
Type: UNKNOWN
1038138

Source: XF
Type: UNKNOWN
apple-macos-cve20172448-sec-bypass(124008)

Source: CCN
Type: Apple security document HT207615
About the security content of macOS Sierra 10.12.4, Security Update 2017-001 El Capitan, and Security Update 2017-001 Yosemite

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207601

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207615

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207617

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version <= 10.2.1)

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version <= 10.12.3)

OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version <= 10.1.1)

OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version <= 3.1.3)

Denotes that component is vulnerable

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