macOS, Memory Corruption Vulnerability, CVE-2025-24151 Critical

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How the CVE Works:

CVE-2025-24151 is a critical memory corruption vulnerability affecting macOS Ventura, Sequoia, and Sonoma. The flaw arises due to improper memory handling in the macOS kernel, allowing a malicious app to exploit this weakness. By crafting specific memory operations, an attacker can cause unexpected system termination or corrupt kernel memory. This could lead to a full system crash, data loss, or even arbitrary code execution with kernel-level privileges. Apple addressed this issue in macOS Ventura 13.7.3, macOS Sequoia 15.3, and macOS Sonoma 14.7.3 by implementing improved memory management mechanisms.

DailyCVE Form:

Platform: macOS
Version: Ventura 13.7.3, Sequoia 15.3, Sonoma 14.7.3
Vulnerability: Memory Corruption
Severity: Critical
Date: 01/27/2025

What Undercode Say:

Exploitation:

1. Exploit Code: Crafting a malicious app to trigger memory corruption.

   include <stdio.h>
   include <stdlib.h>
   void exploit {
   // Malicious memory operations
   char ptr = char malloc1024;
   freeptr;
   ptr[0] = 'A'; // Use-after-free vulnerability
   }
   

2. Exploit Vector: Malicious app with elevated privileges.

3. Payload Delivery: Phishing or malicious app stores.

Protection:

1. Update macOS: Ensure systems are updated to Ventura 13.7.3, Sequoia 15.3, or Sonoma 14.7.3.

   sudo softwareupdate --install --all
   

2. Kernel Hardening: Enable System Integrity Protection SIP.

csrutil enable

3. Sandboxing: Restrict app permissions using macOS sandboxing.

sandbox-exec -n no-network /path/to/app

4. Monitoring: Use macOS Activity Monitor to detect suspicious processes.

open -a "Activity Monitor"

Analytics:

1. CVSS Score: 9.8 Critical

2. Attack Vector: Local

1. Impact: System crash, data loss, kernel-level code execution.

References:

1. [Apple Security Updates]https://support.apple.com/en-us/HT201222
2. [NVD CVE-2025-24151]https://nvd.nist.gov/vuln/detail/CVE-2025-24151
3. [Kernel Exploitation Techniques]https://www.blackhat.com/docs/us-15/materials/us-15-Mandt-Deputy-Locking-Down-The-Windows-Kernel.pdf

Tools:

1. GDB: Debugging kernel memory.

gdb /path/to/kernel

2. Radare2: Binary analysis.

r2 /path/to/malicious/app

3. Kextstat: Check loaded kernel extensions.

kextstat

By following these steps, users can mitigate the risks associated with CVE-2025-24151 and protect their systems from potential exploitation.

References:

Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-24151
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