Apple iCloud up to 7.7 on Windows WebKit memory corruption

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

A vulnerability was found in Apple iCloud up to 7.7 on Windows (Cloud Software). It has been classified as critical. Affected is some unknown processing of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 10/30/2018. The weakness was presented 10/29/2018 by zhunki with 360 ESG Codesafe Team as HT209198 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2018-4378 since 01/02/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/03/2020). The advisory points out:

A memory corruption issue was addressed with improved validation.

The vulnerability scanner Nessus provides a plugin with the ID 118571 (macOS : Apple Safari < 12.0.1 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 local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371294 (Apple iTunes for Windows Prior to 12.9.1 Multiple Vulnerabilities (HT209197)).

Upgrading to version 7.8 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (118571). See 126166, 126170, 126180 and 126181 for similar entries.

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VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Memory corruption (CWE-119)
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 118571
Nessus Name: macOS : Apple Safari < 12.0.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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

Upgrade: iCloud 7.8

Timelineinfoedit

01/02/2018 🔍
10/29/2018 +300 days 🔍
10/29/2018 +0 days 🔍
10/30/2018 +0 days 🔍
10/31/2018 +1 days 🔍
10/31/2018 +0 days 🔍
06/03/2020 +581 days 🔍

Sourcesinfoedit

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

Advisory: HT209198
Researcher: zhunki
Organization: 360 ESG Codesafe Team
Status: Confirmed

CVE: CVE-2018-4378 (🔍)
See also: 🔍

Entryinfoedit

Created: 10/31/2018 09:58 AM
Updated: 06/03/2020 03:36 PM
Changes: (10) vulnerability_discoverydate source_cve_assigned source_cve_nvd_summary source_nessus_id source_nessus_name source_nessus_filename source_nessus_family source_openvas_filename source_openvas_title source_openvas_family
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