CVE-2019-8834

MEDIUM

iCloud < 7.16 - HSTS Bypass via Privileged Network Position

Title source: llm
STIX 2.1

Description

A configuration issue was addressed with additional restrictions. This issue is fixed in tvOS 13.3, watchOS 6.1.1, iCloud for Windows 10.9, macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra, iOS 13.3 and iPadOS 13.3, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. An attacker in a privileged network position may be able to bypass HSTS for a limited number of specific top-level domains previously not in the HSTS preload list.

References (7)

Core 7
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT210785
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT210788
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT210789
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT210790
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT210793
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT210794
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT210795

Scores

CVSS v3 4.3
EPSS 0.0116
EPSS Percentile 63.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Details

Status published
Products (7)
apple/icloud < 7.16
apple/ipados < 13.3
apple/iphone_os < 13.3
apple/itunes < 12.10.3
apple/mac_os_x < 10.15.2
apple/tvos < 13.3
apple/watchos < 6.1.1
Published Oct 27, 2020
Tracked Since Feb 18, 2026