medium
6.5
CWE
732 362 20
Advisory Published
CVE Published
Updated

CVE-2023-42861: Race Condition

First published: Wed Oct 25 2023(Updated: )

A logic issue was addressed with improved state management. This issue is fixed in macOS Sonoma 14.1. An attacker with knowledge of a standard user's credentials can unlock another standard user's locked screen on the same Mac.

Credit: product-security@apple.com Jon Crain Concentrix凯 王 ConcentrixBrandon Chesser & CPU IT inc ConcentrixMatthew McLean ConcentrixSteven Maser Concentrix Concentrixthe Avalon IT Team Concentrixan anonymous researcher ConcentrixBrandon Chesser ConcentrixCPU IT inc ConcentrixAvalon IT Team Concentrixan anonymous researcher Pr BarPr Hebrew University EP LFY @secsys Fudan UniversityDaniel Zajork Joshua Zajork Meysam Firouzi @R00tkitsmm Trend Micro Zero Day InitiativeMickey Jin @patch1t Pedro Tôrres @t0rr3sp3dr0 CVE-2024-23296 CVE-2024-27806 Yann GASCUEL Alter Solutionsajajfxhj Kirin @Pwnrin 小来来 @Smi1eSEC pattern-f @pattern_F_ Ant Security LightAmir Bazine CrowdStrike Counter Adversary OperationsKarsten König CrowdStrike Counter Adversary Operations

Affected SoftwareAffected VersionHow to fix
Apple macOS>=14.0<14.1
Apple macOS<14.1
14.1
Apple macOS<13.6.7
13.6.7

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2023-42861?

    CVE-2023-42861 is a logic issue in the Login Window of macOS Sonoma 14.1, which allows an attacker to unlock another user's locked screen on the same Mac.

  • How can an attacker exploit CVE-2023-42861?

    An attacker with knowledge of a standard user's credentials can unlock another standard user's locked screen on the same Mac.

  • What is the severity of CVE-2023-42861?

    The severity of CVE-2023-42861 is moderate.

  • How can I fix CVE-2023-42861?

    To fix CVE-2023-42861, update your macOS to Sonoma 14.1 or later.

  • Where can I find more information about CVE-2023-42861?

    For more information about CVE-2023-42861, you can refer to the following resources: [Apple Support](https://support.apple.com/en-us/HT213984), [Full Disclosure Mailing List](http://seclists.org/fulldisclosure/2023/Oct/24), [Apple Security Updates](https://support.apple.com/kb/HT213984).

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