Apple Mac OS X up to 10.11.3 Security File access control

CVSS Meta Temp Score
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Apple Mac OS X up to 10.11.3. This affects an unknown part of the component Security. The manipulation leads to access control (File). This vulnerability is traded as CVE-2016-1773. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Apple Mac OS X up to 10.11.3 (Operating System). This issue affects some unknown processing of the component Security. The manipulation with an unknown input leads to a access control vulnerability (File). Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality. The summary by CVE is:

The code-signing subsystem in Apple OS X before 10.11.4 does not properly verify file ownership, which allows local users to determine the existence of arbitrary files via unspecified vectors.

The weakness was shared 03/21/2016 by Mark Mentovai (Proteas) with Google Inc. as HT206167 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2016-1773 since 01/13/2016. Attacking locally is a requirement. Required for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:

A permissions issue existed in code signing tools. This was addressed though additional ownership checks.

The vulnerability scanner Nessus provides a plugin with the ID 90096 (Mac OS X 10.11.x < 10.11.4 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 124842 (Apple Mac OS X v10.11.4 and Security Update 2016-002 Not Installed (APPLE-SA-2016-03-21-5)).

Upgrading to version 10.11.4 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 (90096), SecurityFocus (BID 85056†) and Vulnerability Center (SBV-57635†). The entries VDB-68484, VDB-68973, VDB-73556 and VDB-81428 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

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

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: File
Class: Access control / File
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 90096
Nessus Name: Mac OS X 10.11.x < 10.11.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 March-2016
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: Mac OS X 10.11.4

Timelineinfo

01/13/2016 🔍
03/21/2016 +68 days 🔍
03/21/2016 +0 days 🔍
03/21/2016 +0 days 🔍
03/21/2016 +0 days 🔍
03/22/2016 +1 days 🔍
03/23/2016 +1 days 🔍
03/23/2016 +0 days 🔍
03/23/2016 +0 days 🔍
11/12/2024 +3155 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206167
Researcher: Mark Mentovai (Proteas)
Organization: Google Inc.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1773 (🔍)
GCVE (CVE): GCVE-0-2016-1773
GCVE (VulDB): GCVE-100-81479
SecurityFocus: 85056 - Apple Mac OS X APPLE-SA-2016-03-21-5 Multiple Security Vulnerabilities
SecurityTracker: 1035363
Vulnerability Center: 57635 - Apple OS X 10.11 through 10.11.3 Local Information Disclosure due to Issue in Code Signing Tools - CVE-2016-1773, Low

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 03/23/2016 12:41
Updated: 11/12/2024 00:06
Changes: 03/23/2016 12:41 (78), 02/02/2019 11:21 (13), 07/11/2022 09:55 (3), 11/12/2024 00:06 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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