Apple macOS up to 10.13.1 fsck_msdos memory corruption

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

Summaryinfo

A vulnerability was found in Apple macOS up to 10.13.1 and classified as critical. This affects an unknown function of the component fsck_msdos. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2017-13811. The attack is restricted to local execution. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.13.1 (Operating System). It has been declared as critical. This vulnerability affects an unknown code of the component fsck_msdos. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 10/31/2017. The weakness was disclosed 10/31/2017 with Trend Micro as HT208221 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2017-13811 since 08/30/2017. The attack needs to be approached locally. A single authentication is needed for exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

A memory corruption issue was addressed with improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 103598 (macOS < 10.13 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 370625 (Apple macOS High Sierra 10.13.1, Security Update 2017-001 Sierra, and Security Update 2017-004 El Capitan Not Installed).

Upgrading to version 10.13.1 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 (103598) and SecurityFocus (BID 91816†). The entries VDB-89669, VDB-89849, VDB-98603 and VDB-99763 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
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Nessus ID: 103598
Nessus Name: macOS < 10.13 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 861083
OpenVAS Name: Apple MacOSX Multiple Code Execution Vulnerabilities HT208221
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.13.1

Timelineinfo

07/18/2016 🔍
08/30/2017 +408 days 🔍
10/03/2017 +34 days 🔍
10/31/2017 +28 days 🔍
10/31/2017 +0 days 🔍
10/31/2017 +0 days 🔍
11/03/2017 +3 days 🔍
11/12/2017 +9 days 🔍
09/04/2024 +2488 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208221
Researcher: Scott Geary
Organization: Trend Micro
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-13811 (🔍)
GCVE (CVE): GCVE-0-2017-13811
GCVE (VulDB): GCVE-100-108952
SecurityFocus: 91816
SecurityTracker: 1039710

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

Entryinfo

Created: 11/03/2017 15:12
Updated: 09/04/2024 20:35
Changes: 11/03/2017 15:12 (75), 12/03/2019 10:39 (4), 01/22/2021 06:12 (3), 01/22/2021 06:19 (3), 09/04/2024 20:35 (17)
Complete: 🔍
Cache ID: 216::103

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