Apple macOS 10.12.0 FaceTime information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

A vulnerability, which was classified as critical, was found in Apple macOS 10.12.0 (Operating System). This affects an unknown code block of the component FaceTime. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

FaceTime in Apple iOS before 9.3.3 and OS X before 10.11.6 allows man-in-the-middle attackers to spoof relayed-call termination, and obtain sensitive audio information in opportunistic circumstances, via unspecified vectors.

The weakness was presented 10/24/2016 by Martin Vigo with salesforce.com as HT207275 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2016-4635 since 05/11/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK. The advisory points out:

User interface inconsistencies existed in the handling of relayed calls. These issues were addressed through improved FaceTime display logic.

The vulnerability scanner Nessus provides a plugin with the ID 92496 (Mac OS X 10.11.x < 10.11.6 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370095 (Apple Mac OS X v10.11.6 and Security Update 2016-004 Not Installed (APPLE-SA-2016-07-18-1)).

Upgrading to version 10.12.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (92496). See 88079, 89684, 89686 and 89687 for similar entries.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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NVD Base Score: 5.3
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 92496
Nessus Name: Mac OS X 10.11.x < 10.11.6 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63631
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities December-2016
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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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0-Day Time: 🔍
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Upgrade: macOS 10.12.1

Timelineinfo

05/11/2016 🔍
07/18/2016 +68 days 🔍
07/21/2016 +3 days 🔍
07/21/2016 +0 days 🔍
10/24/2016 +95 days 🔍
10/24/2016 +0 days 🔍
10/25/2016 +1 days 🔍
09/28/2022 +2164 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207275
Researcher: Martin Vigo
Organization: salesforce.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4635 (🔍)
SecurityTracker: 1036344
SecurityFocus: 91829 - Apple Mac OS X and iOS CVE-2016-4635 Security Bypass Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 10/25/2016 09:09
Updated: 09/28/2022 11:28
Changes: 10/25/2016 09:09 (73), 05/17/2019 16:41 (12), 09/28/2022 11:28 (4)
Complete: 🔍

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