Apple macOS up to 10.12.3 AppleGraphicsPowerManagement race condition

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

A vulnerability was found in Apple macOS up to 10.12.3 (Operating System). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component AppleGraphicsPowerManagement. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in certain Apple products. macOS before 10.12.4 is affected. The issue involves the "AppleGraphicsPowerManagement" component. A race condition allows attackers to execute arbitrary code in a privileged context via a crafted app.

The bug was discovered 03/27/2017. The weakness was released 03/27/2017 by Brandon Azad with Apple as HT207615 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2017-2421 since 12/01/2016. Attacking locally is a requirement. A single authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

A race condition was addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 99134 (macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)), 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 370348 (Apple Mac OS X Security Update Sierra 10.12.4, El Capitan 2017-001 and Yosemite 2017-001 Not Installed (APPLE-SA-2017-03-27-3)).

Upgrading to version 10.12.4 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 (99134). Entries connected to this vulnerability are available at 89669, 89849, 93752 and 93958.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 99134
Nessus Name: macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207615
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Upgrade: macOS 10.12.4

Timelineinfo

12/01/2016 🔍
03/27/2017 +116 days 🔍
03/27/2017 +0 days 🔍
03/27/2017 +0 days 🔍
03/27/2017 +0 days 🔍
03/28/2017 +1 days 🔍
03/31/2017 +3 days 🔍
04/01/2017 +1 days 🔍
11/15/2022 +2054 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207615
Researcher: Brandon Azad
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-2421 (🔍)
SecurityTracker: 1038138
SecurityFocus: 97140 - Apple macOS APPLE-SA-2017-03-27-3 Multiple Security Vulnerabilities
OSVDB: - CVE-2017-2421 - Apple - macOS - Code Execution Issue

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

Entryinfo

Created: 03/28/2017 11:03
Updated: 11/15/2022 16:36
Changes: 03/28/2017 11:03 (79), 08/20/2020 16:29 (8), 11/15/2022 16:28 (4), 11/15/2022 16:36 (1)
Complete: 🔍
Cache ID: 3:7DB:103

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