Apple macOS up to 10.11 CommonCrypto input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.11. It has been classified as problematic. Affected is an unknown function of the component CommonCrypto. The manipulation leads to input validation. This vulnerability is traded as CVE-2016-4711. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.11 (Operating System). It has been rated as critical. This issue affects an unknown code block of the component CommonCrypto. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality. The summary by CVE is:

CCrypt in corecrypto in CommonCrypto in Apple iOS before 10 and OS X before 10.12 allows attackers to discover cleartext information by leveraging a function call that specifies the same buffer for input and output.

The weakness was shared 09/20/2016 by Cererdlong with Zero Day Initiative as HT207170 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2016-4711 since 05/11/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The advisory points out:

An input validation issue existed in corecrypto. This issue 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 93056†). The entries VDB-89145, VDB-91604, VDB-91602 and VDB-91605 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 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: Cererdlong
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4711 (🔍)
GCVE (CVE): GCVE-0-2016-4711
GCVE (VulDB): GCVE-100-92069
SecurityFocus: 93056 - Apple iOS and Mac OS Multiple Security Vulnerabilities
SecurityTracker: 1036858

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

Entryinfo

Created: 09/26/2016 11:46
Updated: 09/20/2022 19:11
Changes: 09/26/2016 11:46 (69), 04/25/2019 17:35 (14), 09/20/2022 19:11 (4)
Complete: 🔍
Cache ID: 216::103

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