Apple Mac OS X up to 10.11.1 Kernel input validation

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8.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple Mac OS X up to 10.11.1. It has been declared as problematic. Impacted is an unknown function of the component Kernel. Such manipulation leads to input validation. This vulnerability is listed as CVE-2015-7047. The attack may be performed from remote. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

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 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, integrity, and availability. CVE summarizes:

The kernel in Apple iOS before 9.2, OS X before 10.11.2, tvOS before 9.1, and watchOS before 2.1 allows local users to gain privileges via a crafted mach message that is misparsed.

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. The exploit is available at exploit-db.com. It is declared as proof-of-concept. 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 l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124389 (Apple Mac OS X v10.11.2 and Security Update 2015-008 Not Installed (APPLE-SA-2015-12-08-3)).

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 Exploit-DB (39371), Tenable (87321) and SecurityFocus (BID 78719†). See VDB-78550, VDB-78551, VDB-79541 and VDB-79545 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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

EPSS Score: 🔍
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: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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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 🔍
11/13/2024 +3212 days 🔍

Sourcesinfo

Vendor: apple.com

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

CVE: CVE-2015-7047 (🔍)
GCVE (CVE): GCVE-0-2015-7047
GCVE (VulDB): GCVE-100-79568
SecurityFocus: 78719 - Apple Mac OS X/watchOS/iOS/tvOS Multiple Security Vulnerabilities
SecurityTracker: 1034344

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

Entryinfo

Created: 12/09/2015 14:05
Updated: 11/13/2024 01:46
Changes: 12/09/2015 14:05 (44), 04/28/2018 23:57 (34), 06/29/2022 14:44 (3), 11/13/2024 01:46 (16)
Complete: 🔍
Cache ID: 216:629:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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