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How CVE-2025-31260 Works
This vulnerability stems from improper permission handling in macOS, allowing malicious apps to bypass sandbox restrictions and access sensitive user data. The flaw occurs due to insufficient validation of app enments, enabling unauthorized read/write operations in protected directories. Attackers exploit this by crafting a malicious app with elevated enments, which macOS fails to restrict properly. The app can then exfiltrate user data, including keychain items, browser history, or local files. The issue is resolved in macOS Sequoia 15.5 by enforcing stricter enment checks and isolating app data access.
DailyCVE Form
Platform: macOS
Version: Pre-15.5
Vulnerability: Data access bypass
Severity: Critical
Date: 05/27/2025
Prediction: Patch expected by 06/10/2025
What Undercode Say:
Analytics:
- Exploitability: High (low-code PoC likely)
- Attack Surface: Local app execution
- Impact: Confidentiality compromise
Commands:
1. Check macOS version:
sw_vers -productVersion
2. List app enments (for analysis):
codesign -d --enments - /Applications/SuspiciousApp.app
Exploit (Conceptual):
let sensitivePath = "/Users/Shared/.keychain" let data = try? Data(contentsOf: URL(fileURLWithPath: sensitivePath)) // Exfiltrate data
Mitigation:
1. Update to macOS 15.5 immediately.
2. Restrict app installations via MDM:
sudo profiles restrict -path /path/to/profile.mobileconfig
3. Monitor unauthorized data access:
sudo fs_usage -w -f filesys | grep "open"
Detection Script (Zsh):
if [[ $(sw_vers -productVersion) < "15.5" ]]; then echo "Vulnerable to CVE-2025-31260" else echo "Patched" fi
Firewall Rule (Block exfiltration):
sudo pfctl -f /etc/pf.conf echo "block out quick from any to 1.1.1.1" >> /etc/pf.conf
Enment Hardening (Pre-patch):
<key>com.apple.security.app-sandbox</key> <true/> <key>com.apple.security.files.user-selected.read-only</key> <true/>
Log Analysis (Detect Exploits):
log show --predicate 'eventMessage contains "enment"' --last 24h
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
