Apple Devices, File Parsing Vulnerability, CVE-2025-24123 (Critical)

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How the Mentioned CVE Works:

CVE-2025-24123 is a critical vulnerability affecting Apple devices, including iPadOS, macOS, visionOS, iOS, watchOS, and tvOS. The issue arises during the parsing of a maliciously crafted file, which can cause an unexpected app termination or potentially allow arbitrary code execution. The vulnerability stems from insufficient validation checks during file parsing, enabling attackers to exploit memory corruption or buffer overflow scenarios. Apple addressed this issue in multiple OS updates, including iPadOS 17.7.4, macOS Ventura 13.7.3, and iOS 18.3, by implementing improved file validation mechanisms. The CVSS 4.0 score reflects its critical severity due to the potential for remote exploitation and high impact on system integrity and availability.

DailyCVE Form:

Platform: Apple Devices

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Version: iPadOS <17.7.4, macOS <13.7.3, iOS <18.3

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Vulnerability: File Parsing Issue

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Severity: Critical

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Date: 01/27/2025

What Undercode Say:

Exploitation Details:

  1. Exploit Vector: Malicious files sent via email, messaging apps, or downloaded from untrusted sources.
  2. Payload: Crafted files designed to trigger memory corruption during parsing.
  3. Impact: App termination, potential remote code execution, or system crash.

Protection Measures:

  1. Update Devices: Ensure all Apple devices are updated to the latest OS versions.
  2. File Validation: Implement strict file validation in applications handling external files.
  3. Network Security: Use firewalls and email filters to block malicious file attachments.

Commands and Tools:

1. Check OS Version:

sw_vers

2. Verify Updates:

softwareupdate -l

3. File Validation Script (Python):

import magic
def validate_file(file_path):
file_type = magic.from_file(file_path, mime=True)
if file_type not in ["application/pdf", "image/jpeg"]:
raise ValueError("Unsupported file type")

References:

  1. Apple Security Updates
  2. CVE-2025-24123 NVD Entry
  3. CVSS 4.0 Calculator

Analytics:

  • Affected Devices: Millions of Apple devices running outdated OS versions.
  • Exploit Likelihood: High, due to widespread file-sharing practices.
  • Patch Adoption Rate: Critical updates recommended within 30 days of release.

Additional Code:

1. Exploit PoC (For Educational Purposes Only):

WARNING: This is a simulated exploit for educational use.
malicious_file = b"\x41" 1000 Crafted payload
with open("malicious.file", "wb") as f:
f.write(malicious_file)

2. Patch Verification Script:

if [[ $(sw_vers -productVersion) < "17.7.4" ]]; then
echo "Device is vulnerable. Update immediately."
else
echo "Device is secure."
fi

By following these guidelines, users and administrators can mitigate the risks associated with CVE-2025-24123 and ensure the security of their Apple devices.

References:

Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-24123
Extra Source Hub:
Undercode

Image Source:

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