Apple macOS up to 10.11 AppleEFIRuntime null pointer dereference

CVSS Meta Temp Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Apple macOS up to 10.11. Affected is an unknown function of the component AppleEFIRuntime. The manipulation results in null pointer dereference. This vulnerability was named CVE-2016-4696. The attack needs to be approached locally. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.11 (Operating System). It has been classified as critical. Affected is an unknown functionality of the component AppleEFIRuntime. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

AppleEFIRuntime in Apple OS X before 10.12 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (NULL pointer dereference) via a crafted app.

The weakness was presented 09/20/2016 by Meder Kydyraliev (Shrek_wzw) with Qihoo 360 as HT207170 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2016-4696 since 05/11/2016. The exploitability is told to be easy. Local access is required to approach this attack. The successful exploitation needs a authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:

A null pointer dereference was addressed through improved input validation.

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†). See VDB-89145, VDB-91991, VDB-92000 and VDB-92001 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
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: Null pointer dereference
CWE: CWE-476 / CWE-404
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 🔍
09/20/2022 +2185 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207170
Researcher: Meder Kydyraliev (Shrek_wzw)
Organization: Qihoo 360
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4696 (🔍)
GCVE (CVE): GCVE-0-2016-4696
GCVE (VulDB): GCVE-100-92058
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 11:33
Updated: 09/20/2022 17:49
Changes: 09/26/2016 11:33 (71), 04/25/2019 16:46 (14), 09/20/2022 17:49 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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