Apple iOS up to 11.2.4 Kernel Memory information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apple iOS up to 11.2.4. Affected by this issue is some unknown functionality of the component Kernel. This manipulation causes information disclosure (Memory). This vulnerability is tracked as CVE-2018-4093. The attack is restricted to local execution. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 11.2.4 (Smartphone Operating System). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component Kernel. The manipulation with an unknown input leads to a information disclosure vulnerability (Memory). The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality.

The bug was discovered 01/23/2018. The weakness was disclosed 01/26/2018 by Jann Horn with Google Project Zero as HT208463 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2018-4093 since 01/02/2018. An attack has to be approached locally. A single authentication is required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. The advisory points out:

A validation issue was addressed with improved input sanitization.

The vulnerability scanner Nessus provides a plugin with the ID 106297 (macOS and Mac OS X Multiple Vulnerabilities (Security Update 2018-001) (Meltdown)), 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 370738 (Apple macOS High Sierra 10.13.3, Security Update 2018-001 Sierra, and Security Update 2018-001 El Capitan Not Installed (Meltdown)).

Upgrading to version 11.2.5 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (106297) and SecurityFocus (BID 102057†). The entries VDB-110054, VDB-111325, VDB-112574 and VDB-112575 are pretty similar. 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: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Memory
Class: Information disclosure / Memory
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106297
Nessus Name: macOS and Mac OS X Multiple Vulnerabilities (Security Update 2018-001) (Meltdown)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 71145
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 (HT208465)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS 11.2.5

Timelineinfo

11/29/2017 🔍
01/02/2018 +34 days 🔍
01/23/2018 +21 days 🔍
01/23/2018 +0 days 🔍
01/24/2018 +1 days 🔍
01/26/2018 +2 days 🔍
01/28/2018 +2 days 🔍
04/03/2018 +65 days 🔍
02/02/2021 +1036 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208463
Researcher: Jann Horn
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4093 (🔍)
GCVE (CVE): GCVE-0-2018-4093
GCVE (VulDB): GCVE-100-112597
SecurityFocus: 102057 - cURL/libcURL CVE-2017-8817 Memory Corruption Vulnerability
SecurityTracker: 1040265

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

Entryinfo

Created: 01/28/2018 19:00
Updated: 02/02/2021 09:37
Changes: 01/28/2018 19:00 (72), 12/30/2019 17:03 (14), 02/02/2021 09:37 (3)
Complete: 🔍
Cache ID: 216::103

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