Apple macOS up to 10.11 Security Memory information disclosure

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

Summaryinfo

A vulnerability categorized as problematic has been discovered in Apple macOS up to 10.11. This affects an unknown function of the component Security. The manipulation results in information disclosure (Memory). This vulnerability is known as CVE-2016-4752. Attacking locally is a requirement. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Apple macOS up to 10.11 (Operating System). Affected is an unknown functionality of the component Security. The manipulation with an unknown input leads to a information disclosure vulnerability (Memory). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

The SecKeyDeriveFromPassword function in Apple OS X before 10.12 does not use the CF_RETURNS_RETAINED keyword, which allows attackers to obtain sensitive information from process memory by triggering key derivation.

The weakness was published 09/20/2016 by Meder Kydyraliev (Shrek_wzw) with Zero Day Initiative as HT207170 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2016-4752 since 05/11/2016. The exploitability is told to be easy. The attack needs to be approached locally. The successful exploitation needs a authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

A resource management issue existed in the handling of key derivation. This issue was addressed by adding CF_RETURNS_RETAINED to SecKeyDeriveFromPassword.

The vulnerability scanner Nessus provides a plugin with the ID 93685 (macOS < 10.12 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.

Upgrading to version 10.12 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 (93685) and SecurityFocus (BID 93055†). Similar entries are available at VDB-89145, VDB-91991, VDB-92000 and VDB-92001. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Memory
Class: Information disclosure / Memory
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93685
Nessus Name: macOS < 10.12 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 64377
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 September-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.12

Timelineinfo

05/11/2016 🔍
09/20/2016 +132 days 🔍
09/20/2016 +0 days 🔍
09/20/2016 +0 days 🔍
09/23/2016 +3 days 🔍
09/25/2016 +2 days 🔍
09/26/2016 +1 days 🔍
09/21/2022 +2186 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207170
Researcher: Meder Kydyraliev (Shrek_wzw)
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4752 (🔍)
GCVE (CVE): GCVE-0-2016-4752
GCVE (VulDB): GCVE-100-92100
SecurityFocus: 93055 - Apple Mac OS X APPLE-SA-2016-09-20 Multiple Security Vulnerabilities
SecurityTracker: 1036858

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

Entryinfo

Created: 09/26/2016 11:53
Updated: 09/21/2022 08:17
Changes: 09/26/2016 11:53 (70), 04/26/2019 06:58 (15), 09/21/2022 08:17 (3)
Complete: 🔍
Cache ID: 216::103

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