Apple iOS up to 9.1 Kernel memory corruption

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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apple iOS up to 9.1. The affected element is an unknown function of the component Kernel. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2015-7084. In addition, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 9.1 (Smartphone Operating System). It has been rated as critical. This issue affects some unknown functionality of the component Kernel. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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 or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2015-7083.

The weakness was presented 12/08/2015 by Ian Beer with Google Project Zero as HT205635 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2015-7084 since 09/16/2015. An attack has to be approached locally. A simple authentication is required for exploitation. Technical details are unknown but a public exploit is available. The advisory points out:

Multiple memory corruption issues existed in the kernel. These issues were addressed through improved memory handling.

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. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 87314 (Mac OS X 10.11.x < 10.11.2 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. 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 9.2 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 (39357), Tenable (87314), SecurityFocus (BID 78719†) and Vulnerability Center (SBV-55248†). See VDB-79541, VDB-79545, VDB-79546 and VDB-79547 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.8
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

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Nessus ID: 87314
Nessus Name: Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities
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: 🔍
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Exploit Delay Time: 🔍

Upgrade: iOS 9.2

Timelineinfo

09/16/2015 🔍
12/08/2015 +83 days 🔍
12/08/2015 +0 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/10/2015 +1 days 🔍
12/11/2015 +1 days 🔍
12/15/2015 +4 days 🔍
01/28/2016 +44 days 🔍
01/28/2016 +0 days 🔍
11/12/2024 +3211 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205635
Researcher: Ian Beer
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7084 (🔍)
GCVE (CVE): GCVE-0-2015-7084
GCVE (VulDB): GCVE-100-79613
SecurityFocus: 78719
SecurityTracker: 1034344
Vulnerability Center: 55248 - Apple iOS <9.2 Local Code Execution due to Memory Corruptions Issues - CVE-2015-7084, High

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 12/09/2015 14:32
Updated: 11/12/2024 13:52
Changes: 12/09/2015 14:32 (66), 05/14/2018 12:38 (15), 06/30/2022 01:22 (3), 06/22/2024 19:17 (15), 11/12/2024 13:52 (2)
Complete: 🔍
Cache ID: 216::103

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