Apple Mac OS X up to 10.11.1 Kernel input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.8$0-$5k0.00

A vulnerability was found in Apple Mac OS X up to 10.11.1 (Operating System). It has been rated as critical. Affected by this issue is some unknown processing of the component Kernel. The manipulation with an unknown input leads to a privilege escalation 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, integrity, and availability.

The weakness was presented 12/08/2015 by Ian Beer (j00ru) with Google Project Zero as HT205637 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2015-7047 since 09/16/2015. The attack needs to be approached locally. Required for exploitation is a simple authentication. Technical details are unknown but a public exploit is available. The advisory points out:

An issue existed in the parsing of mach messages. This issue was addressed through improved validation of mach messages.

A public exploit has been developed by Google Security Research and been published 2 months after the advisory. It is declared as proof-of-concept. The exploit is available at exploit-db.com. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 87321 (Mac OS X Multiple Vulnerabilities (Security Updates 2015-005 / 2015-008)), 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 local.

Upgrading to version 10.11.2 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 (87321) and Exploit-DB (39371). See 78550, 78551, 79541 and 79545 for similar entries.

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CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Google Security Research
Download: 🔍

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87321
Nessus Name: Mac OS X Multiple Vulnerabilities (Security Updates 2015-005 / 2015-008)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Mac OS X 10.11.2

Timelineinfo

09/16/2015 🔍
12/08/2015 +83 days 🔍
12/08/2015 +0 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/11/2015 +2 days 🔍
12/11/2015 +0 days 🔍
01/28/2016 +48 days 🔍
01/28/2016 +0 days 🔍
06/29/2022 +2344 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205637
Researcher: Ian Beer (j00ru)
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7047 (🔍)
SecurityTracker: 1034344
SecurityFocus: 78719 - Apple Mac OS X/watchOS/iOS/tvOS Multiple Security Vulnerabilities

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

Entryinfo

Created: 12/09/2015 02:05 PM
Updated: 06/29/2022 02:44 PM
Changes: (3) vulnerability_cvss2_nvd_basescore exploit_price_0day source_sectracker
Complete: 🔍

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