CVE-2025-43298

7.8 HIGH

📋 TL;DR

A path parsing vulnerability in macOS allows malicious applications to bypass directory validation and gain root privileges. This affects macOS systems before Sonoma 14.8 and Sequoia 15.7. Attackers could exploit this to execute arbitrary code with highest system privileges.

💻 Affected Systems

Products:
  • macOS
Versions: Versions before macOS Sonoma 14.8 and macOS Sequoia 15.7
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default macOS installations running affected versions are vulnerable. No special configuration required.

📦 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...

Learn more about Macos →

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...

Learn more about Macos →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with root access, allowing installation of persistent malware, data theft, and lateral movement across the network.

🟠

Likely Case

Local privilege escalation where a malicious app gains root privileges to modify system files, install backdoors, or access protected data.

🟢

If Mitigated

Limited impact with proper application sandboxing and least privilege principles, though root access remains possible if exploited.

🌐 Internet-Facing: LOW - This is primarily a local privilege escalation requiring user interaction with a malicious application.
🏢 Internal Only: MEDIUM - Internal users could exploit this to gain root access on their own or shared macOS systems.

🎯 Exploit Status

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

Exploitation requires user to run a malicious application. No public exploit code identified in provided references.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sonoma 14.8, macOS Sequoia 15.7

Vendor Advisory: https://support.apple.com/en-us/125111

Restart Required: Yes

Instructions:

1. Open System Settings > General > Software Update. 2. Install available updates. 3. Restart when prompted.

🔧 Temporary Workarounds

Application Restriction

all

Restrict installation and execution of untrusted applications

sudo spctl --master-enable
sudo spctl --enable --label "Developer ID"

🧯 If You Can't Patch

  • Implement strict application allowlisting to prevent execution of untrusted applications
  • Enforce least privilege principles and limit user administrative access

🔍 How to Verify

Check if Vulnerable:

Check macOS version: if running Sonoma earlier than 14.8 or Sequoia earlier than 15.7, system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is Sonoma 14.8 or later, or Sequoia 15.7 or later.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected privilege escalation events in system logs
  • Applications requesting root privileges unexpectedly

Network Indicators:

  • Unusual outbound connections from privileged processes

SIEM Query:

source="macos_system_logs" AND (event="privilege_escalation" OR process="sudo" OR user="root")

🔗 References

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