Apple iOS up to 11.3.1 Siri access control

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CVSS Meta Temp Score
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CTI Interest Score
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3.2$0-$5k0.00

A vulnerability classified as critical has been found in Apple iOS up to 11.3.1 (Smartphone Operating System). Affected is some unknown processing of the component Siri. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-284. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 05/29/2018. The weakness was disclosed 05/29/2018 as HT208848 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2018-4238 since 01/02/2018. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project. The advisory points out:

An issue existed with Siri permissions. This was addressed with improved permission checking.

Upgrading to version 11.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 118648, 118652, 118657 and 118659 are pretty similar.

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VulDB Meta Base Score: 3.4
VulDB Meta Temp Score: 3.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 2.4
NVD Vector: 🔍

CVSSv2infoedit

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-284
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 11.4

Timelineinfoedit

01/02/2018 🔍
05/29/2018 +147 days 🔍
05/29/2018 +0 days 🔍
05/29/2018 +0 days 🔍
06/03/2018 +5 days 🔍
06/08/2018 +4 days 🔍
02/13/2020 +615 days 🔍

Sourcesinfoedit

Vendor: https://www.apple.com/

Advisory: HT208848
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4238 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfoedit

Created: 06/03/2018 02:55 PM
Updated: 02/13/2020 08:10 AM
Changes: (3) vulnerability_discoverydate advisory_confirm_url source_cve_assigned
Complete: 🔍

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