How the CVE Works:
CVE-2025-24233 is a critical macOS vulnerability caused by improper file permission handling. Malicious apps exploit weak access controls to read/write protected system or user files. The flaw stems from insufficient validation of app sandboxing and enment checks, allowing unauthorized access to restricted directories. Attackers craft apps with elevated privileges, bypassing macOS’s Transparency, Consent, and Control (TCC) framework. This could lead to data theft, privilege escalation, or system compromise. Patches in Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5 enforce stricter file access rules.
DailyCVE Form:
Platform: macOS
Version: Ventura/Sequoia/Sonoma
Vulnerability: File Permission Bypass
Severity: Critical
Date: 04/07/2025
What Undercode Say:
Exploitation:
1. Craft a malicious app with fake enments:
let fileURL = URL(fileURLWithPath: "/protected/file") try "stolen_data".write(to: fileURL, atomically: true, encoding: .utf8)
2. Abuse `com.apple.security.files.user-selected.read-write` enment to bypass TCC.
Detection:
- Scan for apps with unnecessary file access enments:
codesign -dv --enments - /Applications/SuspiciousApp.app
- Monitor `fs_usage` for unauthorized file access:
sudo fs_usage -w -f filesys | grep "open"
Mitigation:
1. Update macOS immediately:
softwareupdate --install --all
2. Restrict app permissions via Privacy & Security settings.
3. Enable System Integrity Protection (SIP):
csrutil status
4. Audit enments with:
find /Applications -type d -name ".app" -exec codesign --display --enments - {} \;
References:
- Apple Advisory: HT202525
- NVD: CVE-2025-24233
Impact: Data exfiltration, system compromise.
Patch Priority: Immediate.
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-24233
Extra Source Hub:
Undercode
