Apple iOS up to 10.2 Kernel race condition

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple iOS up to 10.2. Impacted is an unknown function of the component Kernel. Executing a manipulation can lead to race condition. This vulnerability is tracked as CVE-2017-2456. The attack is restricted to local execution. Moreover, an exploit is present. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Apple iOS up to 10.2 (Smartphone Operating System) and classified as critical. This vulnerability affects an unknown part 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 bug was discovered 03/27/2017. The weakness was disclosed 03/27/2017 by John Villamil with Google Project Zero as HT207617 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2017-2456 since 12/01/2016. The attack needs to be approached locally. A single authentication is necessary for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The advisory points out:

A race condition was addressed through improved memory handling.

After 3 days, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 99134 (macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)), 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 370348 (Apple Mac OS X Security Update Sierra 10.12.4, El Capitan 2017-001 and Yosemite 2017-001 Not Installed (APPLE-SA-2017-03-27-3)).

Upgrading to version 10.3 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 (41778), Tenable (99134) and SecurityFocus (BID 97137†). The entries VDB-93752, VDB-94628, VDB-95275 and VDB-98611 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 8.2
VulDB Temp Score: 7.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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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: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99134
Nessus Name: macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207615
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 10.3

Timelineinfo

12/01/2016 🔍
03/27/2017 +116 days 🔍
03/27/2017 +0 days 🔍
03/27/2017 +0 days 🔍
03/27/2017 +0 days 🔍
03/28/2017 +1 days 🔍
03/30/2017 +2 days 🔍
03/30/2017 +0 days 🔍
03/31/2017 +1 days 🔍
04/01/2017 +1 days 🔍
10/30/2024 +2769 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207617
Researcher: John Villamil
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-2456 (🔍)
GCVE (CVE): GCVE-0-2017-2456
GCVE (VulDB): GCVE-100-98752
SecurityFocus: 97137 - Apple iOS/tvOS/macOS/watchOS Multiple Security Vulnerabilities
SecurityTracker: 1038138

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

Entryinfo

Created: 03/28/2017 11:40
Updated: 10/30/2024 07:39
Changes: 03/28/2017 11:40 (75), 10/18/2019 10:21 (15), 11/21/2022 07:29 (5), 10/30/2024 07:39 (16)
Complete: 🔍
Cache ID: 216:417:103

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

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