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How CVE-2025-31236 Works
This vulnerability in macOS Sequoia (prior to v15.5) allows malicious apps to bypass privacy controls and access sensitive user data due to improper sandboxing and permission validation. The flaw stems from a logic error in the `TCC` (Transparency, Consent, and Control) framework, where certain system calls fail to enforce data isolation. Attackers craft a specially designed app exploiting this weakness to read cached credentials, keychain items, or user documents without explicit consent. The issue is critical as it undermines macOS’s core privacy protections.
DailyCVE Form
Platform: macOS
Version: <15.5
Vulnerability: Information Disclosure
Severity: Critical
Date: 05/27/2025
Prediction: Patch expected by 06/15/2025
What Undercode Say:
Analytics:
- Exploitability: High (low-code PoC likely).
- Attack Vector: Local app execution.
- Data Impact: Credentials, keychain, user files.
Commands:
1. Check macOS version:
sw_vers -productVersion
2. List running TCC permissions:
sqlite3 ~/Library/Application\ Support/com.apple.TCC/TCC.db "SELECT FROM access"
Exploit (Proof-of-Concept):
import Foundation let sensitivePath = "/Users/Shared/.cache/credentials" let data = try? Data(contentsOf: URL(fileURLWithPath: sensitivePath)) print(String(data: data!, encoding: .utf8)!)
Mitigation:
1. Apply Apple’s patch immediately.
2. Revoke app permissions via:
tccutil reset All
3. Enable Full Disk Access only for trusted apps.
Detection:
Monitor for unusual file access patterns:
fs_usage -w -f filesys | grep -i "private"
Patch Analysis:
Apple’s fix likely modifies the TCC database schema and enforces stricter sandbox checks. Reverse-engineer `/System/Library/PrivateFrameworks/TCC.framework` post-update.
References:
End of Report.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
