CVE-2024-54465

9.8 CRITICAL

📋 TL;DR

This CVE describes a privilege escalation vulnerability in macOS where a malicious application could exploit a logic flaw in state management to gain elevated privileges. The vulnerability affects macOS systems prior to Sequoia 15.2. Any user running a vulnerable macOS version with untrusted applications is at risk.

💻 Affected Systems

Products:
  • macOS
Versions: All versions prior to macOS Sequoia 15.2
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard macOS installations are vulnerable. The vulnerability requires an application to be executed on the system.

📦 What is this software?

Macos by Apple

macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

A malicious application could gain root privileges, allowing complete system compromise, data theft, installation of persistent malware, or disabling of security controls.

🟠

Likely Case

Malicious applications could bypass sandbox restrictions, access protected system resources, or modify system files without proper authorization.

🟢

If Mitigated

With proper application vetting and security controls, the risk is limited to trusted applications behaving maliciously or sophisticated targeted attacks.

🌐 Internet-Facing: LOW - This requires local application execution, not directly exploitable over the internet.
🏢 Internal Only: HIGH - Local privilege escalation vulnerabilities are highly valuable for attackers who gain initial access through other means.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires a malicious application to be executed on the target system. The logic flaw in state management suggests specific timing or race conditions may be involved.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sequoia 15.2

Vendor Advisory: https://support.apple.com/en-us/121839

Restart Required: Yes

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Sequoia 15.2 update 5. Restart when prompted

🔧 Temporary Workarounds

Application Restriction

all

Restrict installation and execution of untrusted applications using MDM or security policies

Enhanced Monitoring

all

Monitor for suspicious privilege escalation attempts using endpoint security tools

🧯 If You Can't Patch

  • Implement strict application allowlisting to prevent execution of untrusted applications
  • Use endpoint detection and response (EDR) tools to monitor for privilege escalation attempts

🔍 How to Verify

Check if Vulnerable:

Check macOS version: If version is earlier than 15.2, the system is vulnerable

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 15.2 or later after update installation

📡 Detection & Monitoring

Log Indicators:

  • Unexpected privilege escalation events in system logs
  • Applications requesting elevated privileges unexpectedly
  • Changes to system files by non-system processes

Network Indicators:

  • Not applicable - local exploitation only

SIEM Query:

source="macos_system_logs" AND (event_type="privilege_escalation" OR process_name="sudo" OR process_name="su") AND NOT user="root"

🔗 References

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