CVE-2018-4131

HIGH

iPhone OS < 11.3 and macOS < 10.13.4 - Secure Input Mode Bypass via WindowServer Key State Scanning

Title source: llm
STIX 2.1

Description

An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. The issue involves the "WindowServer" component. It allows attackers to bypass the Secure Input Mode protection mechanism, and log keystrokes of arbitrary apps, via a crafted app that scans key states.

References (6)

Core 6
Core References
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208692
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040604
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103581
Third Party Advisory x_refsource_misc
https://twitter.com/boastr_net/status/979624397664333824
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208693
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040608

Scores

CVSS v3 7.8
EPSS 0.0117
EPSS Percentile 64.0%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

Status published
Products (2)
apple/iphone_os < 11.3
apple/mac_os_x < 10.13.4
Published Apr 03, 2018
Tracked Since Feb 18, 2026