Overview
The vulnerability, CVE-2025-31240, poses a severe threat to macOS users, particularly those using Ventura 13.7.6, Sequoia 15.5, or Sonoma 14.7.6. By mounting a maliciously crafted AFP network share, attackers can potentially cause system termination, leading to possible system compromise or data leakage. Given the widespread use of these macOS versions, the impact of this vulnerability can be significant.
Vulnerability Summary
CVE ID: CVE-2025-31240
Severity: High (7.5 CVSS)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System termination leading to potential system compromise or data leakage
Affected Products
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Product | Affected Versions
macOS Ventura | 13.7.6
macOS Sequoia | 15.5
macOS Sonoma | 14.7.6
How the Exploit Works
The exploit operates by tricking a user into mounting a maliciously crafted AFP network share. This share contains code that the macOS system misinterprets, leading to system termination. This termination could potentially leave the system in a compromised state or allow for data leakage.
Conceptual Example Code
The following pseudocode represents a conceptual example of how the exploit may be carried out. Please note that this pseudocode is intended for illustrative purposes only:
# Create malicious AFP network share
create_afp_share --name malicious_share --content '/path/to/malicious_code'
# Trick user into mounting the network share
send_email --to target --subject 'Important Network Share' --body 'Please mount the following network share: afp://malicious_share'In this example, the attacker creates a malicious AFP network share containing their code. They then trick the user into mounting the share, causing the system to execute the code and potentially result in system termination.
