macOS, Privacy Bypass, CVE-2025-24262 (Critical)

How the CVE Works

CVE-2025-24262 is a macOS privacy vulnerability where a sandboxed application can improperly access sensitive user data from system logs due to insufficient log redaction. System logs in macOS may inadvertently expose personally identifiable information (PII), device identifiers, or other restricted data. The flaw arises from improper filtering of log entries before they are stored or displayed, allowing malicious apps to bypass sandbox restrictions. This vulnerability affects macOS versions prior to Sequoia 15.4, where Apple addressed the issue by enhancing log entry redaction. Attackers could exploit this to harvest credentials, track user activity, or escalate privileges by analyzing leaked log data.

DailyCVE Form

Platform: macOS
Version: <15.4
Vulnerability: Privacy bypass
Severity: Critical
Date: 04/04/2025

What Undercode Say:

Exploitation:

  1. Log Inspection: Malicious apps can read system logs via:
    log show --predicate 'eventMessage contains "sensitive"' --last 1h
    
  2. Data Extraction: Scripts can parse logs for PII:
    import subprocess
    logs = subprocess.check_output([bash])
    

Protection:

1. Patch: Upgrade to macOS Sequoia 15.4+.

2. Log Hardening: Restrict log access via:

sudo chmod 640 /var/log/system.log

3. Sandboxing: Enforce stricter app sandbox policies:

<key>com.apple.security.app-sandbox</key>
<true/>

Detection:

1. Audit Log Access:

sudo auditctl -a exit,always -F arch=b64 -S open -F path=/var/log

2. Monitor Processes:

ps aux | grep log

Mitigation:

  • Disable debug logging if unused:
    sudo defaults write /Library/Preferences/com.apple.logging.plist Disable -bool YES
    

References:

  • Apple Security Advisory: bash
  • NVD: bash

References:

Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-24262
Extra Source Hub:
Undercode

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