Apple macOS up to 10.13.2 IOKit input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

A vulnerability was found in Apple macOS up to 10.13.2 (Operating System). It has been declared as critical. Affected by this vulnerability is an unknown code of the component IOKit. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. 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 10.13.2 is affected. The issue involves the "IOKit" component. It allows attackers to execute arbitrary code in a privileged context via a crafted app.

The bug was discovered 12/02/2017. The weakness was released 12/06/2017 by Ian Beer with Google Project Zero as HT208331 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2017-13858 since 08/30/2017. An attack has to be approached locally. A single authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The advisory points out:

An input validation issue existed in the kernel. This issue was addressed through improved input validation.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 105080 (macOS 10.13.x < 10.13.2 Multiple Vulnerabilities (Meltdown)), 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 370677 (Apple macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan Not Installed).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105080). Entries connected to this vulnerability are available at 106777, 107566, 108975 and 109077.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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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
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105080
Nessus Name: macOS 10.13.x < 10.13.2 Multiple Vulnerabilities (Meltdown)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801863
OpenVAS Name: Apple MacOSX Security Updates(HT208331)-04
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

08/30/2017 🔍
12/02/2017 +94 days 🔍
12/06/2017 +4 days 🔍
12/06/2017 +0 days 🔍
12/07/2017 +1 days 🔍
12/07/2017 +0 days 🔍
12/10/2017 +3 days 🔍
12/25/2017 +15 days 🔍
01/26/2021 +1128 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208331
Researcher: Ian Beer
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-13858 (🔍)
SecurityTracker: 1039966
SecurityFocus: 102099 - Apple macOS APPLE-SA-2017-12-6-1 Multiple Security Vulnerabilities

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

Entryinfo

Created: 12/10/2017 09:15
Updated: 01/26/2021 11:37
Changes: 12/10/2017 09:15 (79), 12/13/2019 09:44 (7), 01/26/2021 11:37 (3)
Complete: 🔍

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