Apple Mac OS X up to 10.11.0 SecurityAgent 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apple Mac OS X up to 10.11.0. The affected element is an unknown function of the component SecurityAgent. Executing a manipulation can lead to 7pk security. This vulnerability is tracked as CVE-2015-5943. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Apple Mac OS X up to 10.11.0 (Operating System). This vulnerability affects an unknown code block of the component SecurityAgent. The manipulation with an unknown input leads to a 7pk security vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

SecurityAgent in Apple OS X before 10.11.1 does not prevent synthetic clicks from reaching keychain windows, which allows attackers to bypass intended access restrictions via a crafted app.

The weakness was disclosed 10/21/2015 as HT205375 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2015-5943 since 08/06/2015. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1211. The advisory points out:

A method existed for applications to create synthetic clicks on keychain prompts. This was addressed by disabling synthetic clicks for keychain access windows.

The vulnerability scanner Nessus provides a plugin with the ID 86654 (Mac OS X < 10.11.1 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124182 (Apple Mac OS X Security Update 2015-007 Not Installed (APPLE-SA-2015-10-21-4)).

Upgrading to version 10.11.1 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 (86654) and Vulnerability Center (SBV-53807†). The entries VDB-77709, VDB-78724, VDB-78725 and VDB-78727 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk security
CWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86654
Nessus Name: Mac OS X < 10.11.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 October-15
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 10.11.1

Timelineinfo

08/06/2015 🔍
10/21/2015 +76 days 🔍
10/21/2015 +0 days 🔍
10/21/2015 +0 days 🔍
10/22/2015 +1 days 🔍
10/22/2015 +0 days 🔍
10/23/2015 +1 days 🔍
11/21/2024 +3317 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205375
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-5943 (🔍)
GCVE (CVE): GCVE-0-2015-5943
GCVE (VulDB): GCVE-100-78832
SecurityFocus: 64048
Vulnerability Center: 53807 - Apple MacOS X 10.11 Remote Security Bypass in SecurityAgent - CVE-2015-5943, Medium

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

Entryinfo

Created: 10/22/2015 12:04
Updated: 11/21/2024 02:41
Changes: 10/22/2015 12:04 (64), 02/15/2018 11:18 (6), 06/24/2022 17:59 (4), 11/21/2024 02:41 (16)
Complete: 🔍
Cache ID: 216::103

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