Apple tvOS up to 10.2.0 Kernel Memory information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Apple tvOS up to 10.2.0. Affected by this issue is some unknown functionality of the component Kernel. Such manipulation leads to information disclosure (Memory). This vulnerability is referenced as CVE-2017-6987. The attack can only be performed from a local environment. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Apple tvOS up to 10.2.0 (Digital Media Player) and classified as problematic. Affected by this issue is an unknown part of the component Kernel. The manipulation with an unknown input leads to a information disclosure vulnerability (Memory). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The bug was discovered 05/10/2017. The weakness was published 05/15/2017 by Patrick Wardle (OSS-Fuzz) with Synack as HT207801 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2017-6987 since 03/17/2017. The attack needs to be approached locally. A simple authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

A validation issue was addressed with improved input sanitization.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100270 (macOS 10.12.x < 10.12.5 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 370396 (Apple macOS Sierra Security Update 10.12.5, El Capitan 2017-002 and Yosemite 2017-002 Not Installed (2017-002)).

Upgrading to version 10.2.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100270) and SecurityFocus (BID 98468†). Similar entries are available at VDB-101255, VDB-101256, VDB-101257 and VDB-101258. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100270
Nessus Name: macOS 10.12.x < 10.12.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207797
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: tvOS 10.2.1

Timelineinfo

03/17/2017 🔍
05/10/2017 +54 days 🔍
05/15/2017 +5 days 🔍
05/15/2017 +0 days 🔍
05/15/2017 +0 days 🔍
05/16/2017 +1 days 🔍
05/18/2017 +2 days 🔍
05/22/2017 +4 days 🔍
09/02/2024 +2660 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207801
Researcher: Patrick Wardle (OSS-Fuzz)
Organization: Synack
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6987 (🔍)
GCVE (CVE): GCVE-0-2017-6987
GCVE (VulDB): GCVE-100-101300
SecurityFocus: 98468 - Apple iOS/WatchOS/tvOS/macOS Multiple Security Vulnerabilities
OSVDB: - CVE-2017-6987 - Apple - Multiple Products - Security Bypass Issue
SecurityTracker: 1038484

See also: 🔍

Entryinfo

Created: 05/16/2017 09:03
Updated: 09/02/2024 19:24
Changes: 05/16/2017 09:03 (71), 09/27/2020 10:47 (16), 12/23/2020 19:10 (3), 09/02/2024 19:24 (17)
Complete: 🔍
Cache ID: 216:D5F:103

Once again VulDB remains the best source for vulnerability data.

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