Apple iOS up to 9.2 Kernel race condition

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apple iOS up to 9.2. Impacted is an unknown function of the component Kernel. This manipulation causes race condition. This vulnerability appears as CVE-2016-1757. The attack requires local access. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 9.2 (Smartphone Operating System). It has been declared as critical. Affected by this vulnerability is some unknown processing of the component Kernel. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Race condition in the kernel in Apple iOS before 9.3 and OS X before 10.11.4 allows attackers to execute arbitrary code in a privileged context via a crafted app.

The weakness was presented 03/21/2016 by Ian Beer with Google Project Zero as HT206166 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2016-1757 since 01/13/2016. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The advisory points out:

A race condition existed during the creation of new processes. This was addressed through improved state handling.

It is possible to download the exploit 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 90096 (Mac OS X 10.11.x < 10.11.4 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 124842 (Apple Mac OS X v10.11.4 and Security Update 2016-002 Not Installed (APPLE-SA-2016-03-21-5)).

Upgrading to version 9.3 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 (39595), Tenable (90096), SecurityFocus (BID 71820†) and Vulnerability Center (SBV-57591†). See VDB-68484, VDB-73556, VDB-81414 and VDB-81421 for similar entries. 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: 7.0
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.0
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 90096
Nessus Name: Mac OS X 10.11.x < 10.11.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 March-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 9.3

Timelineinfo

01/13/2016 🔍
03/21/2016 +68 days 🔍
03/21/2016 +0 days 🔍
03/21/2016 +0 days 🔍
03/22/2016 +1 days 🔍
03/22/2016 +0 days 🔍
03/23/2016 +1 days 🔍
03/23/2016 +0 days 🔍
11/11/2024 +3155 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206166
Researcher: Ian Beer
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1757 (🔍)
GCVE (CVE): GCVE-0-2016-1757
GCVE (VulDB): GCVE-100-81493
SecurityFocus: 71820
SecurityTracker: 1035353
Vulnerability Center: 57591 - Apple iOS <9.3 Remote Code Execution in Kernel due to A Race Condition, Critical

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

Entryinfo

Created: 03/23/2016 12:43
Updated: 11/11/2024 20:48
Changes: 03/23/2016 12:43 (64), 02/02/2019 11:11 (26), 07/11/2022 11:09 (4), 06/11/2024 12:06 (15), 11/11/2024 20:48 (2)
Complete: 🔍
Cache ID: 216::103

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